Consulta: subjectFacets:"Metastasis"
Registros recuperados: 23
Data/hora: 08/06/2024 02:07:55

Histological Changes Implicated in Metastasis
Provedor de dados: International Journal of Morphology
Autores: Díaz-Peña,Roberto; Castro-Santos,Patricia.
The process of malignancy emergence is associated with the acquisition of the capacity to invade other tissues. Several different biological processes have been described as involved in this process. Specifically, epithelial mesenchymal transition (EMT), a mechanism associated with embryogenesis and wound repair but also with mobility acquisition, is one of the concerned processes. In EMT an epithelial cell loses its epithelial characteristics, its junctions with neighbor cells and with the basal lamina and acquires mobility and mesenchymal characteristics. Also, factors of the tumor microenvironment have been described as involved. Tumor presence triggers a response in the surrounding tissue known as reactive stromal. It shows particular characteristics...
Tipo: Journal article
Palavras-chave: EMT; CAF; Metastasis; Cancer; Inflammation.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000300031

Humeral chondrosarcoma in a Hokkaido brown bear (Ursus arctos yesoensis).
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: MURAKAMI, Tomoaki; KOBAYASHI, Yoshiyasu; CHIBA, Shiori; KURAUCHI, Yuki; SAKAMOTO, Hideyuki; SASAKI, Motoki; MATSUI, Takane; 古林, 与志安; 佐々木, 基樹.
Humeral chondrosarcoma was found in an 18-year-old male Hokkaido brown bear (Ursus arctos yesoensis). Necropsy revealed a large firm mass under the left superficial pectoral muscle at the axillary region. The mass involved the left shoulder joint and peripheral muscles, and connected to the head of the humerus with osteolysis. Histopathologically, the mass was composed of irregularly shaped myxomatous to cartilaginous tumor lobules. The tumor cell showed moderate nuclear atypia with a relatively high mitotic index, especially in the edges of the myxomatous lobules. The tumor cells were positively immunostained with vimentin and S-100 protein. Based on these findings, the tumors were diagnosed as chondrosarcoma. Metastases were found in the left axillary...
Palavras-chave: Brown bear; Chondrosarcoma; Humerus; Metastasis.
Ano: 2012
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4122

Use of radiographic examinations in the diagnosis of Pulmonary Hypertrophic Osteopathy (OHP): report on three cases in dogs
Provedor de dados: Revista de Educação Continuada em Medicina Veterinária e Zootecnia do CRMV-SP
Autores: Candeias, Cíntia Zamponi Costa; da Silva, Débora Prado; Camargo, Ricardo Fuso; Alves, Jefferson Douglas Soares.
Pulmonary Hypertrophic Osteopathy (OHP) is a condition characterized by a bone neoformation resulting from periosteal response in long bones and extremities. It is secondary to intrathoracic diseases such as primary or metastatic tumors; pyelo-granulomatous diseases and primary malignancies in the pelvic organs. It may affect several species, and has no racial predisposition or biotype relation, although it’s commonly found in elder animals. The usual clinical signs are: increased temperature and edema in the affected limbs, reluctance to move and limping. However, some signs can be related to the primary disease. The pathophysiology is not yet fully understood, but there are different theories that explain the disease. This paper reports three cases seen...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dogs; Metastasis; Bone; Periosteal; Osteopathy cães; Metástases; Osso; Periosteal; Osteopatia.
Ano: 2014
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/23918

Epitheliotropic lymphoma with heart and kidney metastasis in a dog: case report
Provedor de dados: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Autores: Araújo,C.M.T.D.; Pacheco,B.D.; Castro,J.L.C.; Farias,M.R.; Engracia Filho,J.R.
ABSTRACT A female adult dog, with a four-month history of pain and intense pruritus, which eventually resulted in sudden death, was referred for necropsy. Postmortem examination showed thoracic and abdominal serum-sanguineous exudates, multifocal infiltrative renal masses, and similar tumors in the heart. Histopathology revealed midsize infiltrative neoplastic proliferation composed of round cells, sparse cytoplasm, and large hyperchromatic nuclei. Immunohistochemistry revealed CD3+ and CD20-immunoexpression. Histopathological and immunohistochemical findings confirmed the diagnosis of epitheliotropic lymphoma with cardiac and renal metastasis.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Metastasis; Lymphoma; Cutaneous; Canine; Necropsy.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000601461

Feline intraocular sarcoma associated with phthisis bulbi
Provedor de dados: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Autores: Perlmann,E.; Rodarte-Almeida,A.C.V.; Albuquerque,L.; Safatle,A.M.V.; Pigatto,J.A.T.; Barros,P.S.M.
Two cases of feline intraocular sarcoma were reported in stray cats that presented blindness and hypotonia of the affected eye for years before the tumor development. Phthisis bulbi, a final stage of a severe inflammation of the eye, is frequently unmonitored because eyes are blind, small, opaque, and not painful. Yet, this report shows that monitoring and early enucleation of eyes of cats with phthisis bulbi are important and should be considered as a treatment option, because feline intraocular sarcoma is an aggressive tumor that significantly decreases live expectancy.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feline; Phthisis bulbi; Intraocular; Sarcoma; Metastasis.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000300009

Metastatic well differentiated squamous cell carcinoma in the prepuce of a dog: a report of clinicopathological, immunophenotypic and therapeutic approach
Provedor de dados: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Autores: Auler,P.A.; Gamba,C.O.; Horta,R.S.; Lavalle,G.E.; Cassali,G.D.
This report describes a case of a well differentiated squamous cell carcinoma (SCC) of the foreskin of a dog, with metastasis in the regional lymph node. A six-year-old male intact Pit Bull dog presented a preputial ulcerated lesion with an evolution time of one year and enlarged left inguinal lymph node. Surgical resection of the preputial lesion and inguinal lymph nodes was made. The diagnosis of a well differentiated SCC was made following histopathological analysis and immunohistochemistry technique was used to confirm lymph node metastasis and to determine the histological features of the tumor. Here we demonstrated that immunohistochemistry can be an important complementary diagnostic tool to assess the prognostic features of SCC and to determine the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Metastasis; Tumor; Skin; Immunohistochemistry; Chemotherapy.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000501317

Tubulopapillary rectal adenocarcinoma in dog: clinical, surgical, pathological and immunophenotypical aspects: case report
Provedor de dados: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Autores: Oliveira,A.R.; Flecher,M.C.; Horta,R.S.; Souza,M.C.C.; Hardt,I.; Gonçalves,A.B.B.; Cassali,G.D.; Souza,T.D.
ABSTRACT Intestinal carcinomas are rare in dogs. The prognosis and survival time are dependent of the histological type, the invasion of the intestinal wall by the malignant cells and the ability of primary neoplasm to produce metastasis. This study reports a case of a Yorkshire dog that developed a rectal tubulopapillary adenocarcinoma progressing to a peritoneal carcinomatosis and multiple metastasis in large intestines, bladder, kidney, iliac lymph node, liver and lungs, six months after transanal surgical resection of the primary rectal neoplasm. Clinical, surgical, pathological and immunophenotypic findings are described. COX-2 imunohistochemical score was higher in hepatic metastasis (score 9) than in the primary tumour (score 6), and the growth...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Enteric neoplasm; COX-2; Oncology; Carcinomatosis; Metastasis.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000200463

Modulation of IL-10/IL-10R expression by mafosfamide, a derivative of 4-hydroxycyclophosphamide, in a rat B-cell lymphoma
Provedor de dados: Biocell
Autores: Rico,María J.; Matar,Pablo; Scharovsky,O. Graciela.
We have already shown that IL-10 plays an important role in immunosuppression and metastatic dissemination in the rat B-cell lymphoma L-TACB model. It was suggested that the up-regulation of IL-10 production and IL-10 receptor (IL-10R) expression would be part of the transition from primary tumor to metastatic phenotype and that IL-10, besides its immunosuppressive activity, may act as a growth factor for metastatic L-TACB cells. The treatment of L-TACB-bearing rats with a single low-dose cyclophosphamide decreased IL-10 production, reverted immunosuppression and induced the immunologic rejection of tumor metastasis without any effect on primary tumor growth. Our current aim was to investigate the effects of cyclophosphamide on the expression of IL-10 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Metastasis; Cyclophosphamide; Cell proliferation.
Ano: 2012
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452012000200006

Assessment of changes in the brca2 and p53 genes in breast invasive ductal carcinoma in northeast Brazil
Provedor de dados: Biological Research
Autores: Ramalho,Eduardo AVF; Silva-Filho,João LQ; Cartaxo,Marina FS; Cavalcanti,Carmelita BL; Rêgo,Moacyr JBM; Oliveira,Maria BM; Beltrão,Eduardo IC.
BACKGROUND: BRCA protein interacts with at least 13 different proteins that have been implicated with cancer susceptibility and loss of BRCA function is correlated to sensitivity to DNA crosslinking agents in preclinical models. RESULTS: BRCA2 methylation frequency was 44%, p53 Pro22 allele frequency was 32% and heterozygous frequency of Arg/Pro72 genotype was 60% which could be associated as risk factor for metastasis (p = 0.046 OR = 4.190). Regarding to polymorphism of codon 249 the frequency of Arg249 allele presented 82% which was considered not statistically significant. CONCLUSIONS: There was not statistical significance to BRCA2 promoter methylation with any parameters chosen. However, our findings suggest that patients who present heterozygous...
Tipo: Journal article
Palavras-chave: Breast cancer; Epigenetics; Metastasis; Methylation; Polymorphism.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100003

Betamethasone inhibits tumor development, microvessel density and prolongs survival in mice with a multiresistant adenocarcinoma TA3
Provedor de dados: Biological Research
Autores: Garrido,Osvaldo; Letelier,René; Rosas,Carlos; Fuenzalida,Marcela; Ferreira,Arturo; Lemus,David.
Tumor resistance to traditional cancer treatments poses an important challenge to modern science. Thus, angiogenesis inhibition is an important emerging cancer treatment. Many drugs are tested and corticosteroids have shown interesting results. Herein we investigate the effect on microvessel density, survival time and tumoral volume of mice with TA3-MTX-R tumors. Twenty six mice were inoculated with lxlO6 tumor cells, 4-5 days after injection, six mice were injected with PBS (group A) and twenty mice were treated with p-met (group B). All animals from Group A died on day 22. Group B was divided into Bl (treated discontinued) and B2 (treated daily) and observed until day 88. All mice were processed for histo-immunohistochemical analysis and the blood...
Tipo: Journal article
Palavras-chave: Angiogenesis; Betamethasone treatment; Metastasis.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602010000300008

Extracts of red yolk from duck eggs inhibit metastasis of human mammary carcinoma (4T1) cells in mice
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: Qi-bin,Song; Yi,Yao; Wei-guo,Hu; Sheng-hua,Zhang; Xiao-wei,Yan; Rui,Yang.
The aim of the present study was to investigate the in vivo anti-metastatic activity of the red pigments of red yolk eggs laid by the ducks dieting on Potamogeton cripus L on the mammary carcinoma (4T1). The pigments were extracted with petroleum ether and acetone (2:1, v/v). BALB/c mice were divided into three groups (n=6), fed with the extracts at 150 mg/kg body weight (BW)/day (DEYE-H) or at 50 mg/kg BW/day (DEYE-L) and identical buffer without the extract (control group). The extracts were administered for 34 days. The treatment significantly inhibited the growth of orthotopical 4T1 tumour (DEYE-H vs control, 1:2; DEYE-L vs control, 2:3) and reduced the metastasis of tumour in the lungs (DEYE-H vs control, 4:7; DEYE-L vs control, 5:7), without...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Duck egg yolk; Extracts; Mammary carcinoma; Metastasis; 4T1 Cells; BALB/c mice.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000300011

Relationship between matrix metalloproteinases and the occurrence and development of ovarian cancer
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Zhang,Y.; Chen,Q.
Ovarian cancer is one of the most malignant genital cancers, with a high mortality rate. Many researchers have suggested that matrix metalloproteinases (MMPs) have remarkably high expression in ovarian cancer tissues. MMPs are considered to be related to the occurrence, development, invasion and metastasis of ovarian cancer. Moreover, some studies have discovered that the unbalance between MMPs and tissue inhibitor of metalloproteinases (TIMPs) are associated with the malignant phenotype of tumors. This review summarizes the latest research progress of MMPs in ovarian cancer. The investigation of MMP mechanism in ovarian cancer will facilitate the development of effective anti-tumor drugs, and thereby improve the survival rate of patients with ovarian...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ovarian cancer; Matrix metalloproteinases (MMPs); Tissue inhibitor of metalloproteinases (TIMPs); Invasion; Metastasis.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000600301

Functional differences between two morphologically distinct cell subpopulations within a human colorectal carcinoma cell line
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Solimene,A.C.C.; Carneiro,C.R.W.; Melati,I.; Lopes,J.D.
The LISP-I human colorectal adenocarcinoma cell line was isolated from a hepatic metastasis at the Ludwig Institute, São Paulo, SP, Brazil. The objective of the present study was to isolate morphologically different subpopulations within the LISP-I cell line, and characterize some of their behavioral aspects such as adhesion to and migration towards extracellular matrix components, expression of intercellular adhesion molecules and tumorigenicity in vitro. Once isolated, the subpopulations were submitted to adhesion and migration assays on laminin and fibronectin (crucial proteins to invasion and metastasis), as well as to anchorage-independent growth. Two morphologically different subpopulations were isolated: LISP-A10 and LISP-E11. LISP-A10 presents a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carcinoembryonic antigen; CEA; Colorectal carcinoma cell line; Laminin; Fibronectin; Desmoglein; Metastasis.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000500014

Notch ligand Delta-like 1 promotes the metastasis of melanoma by enhancing tumor adhesion
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Zhang,J.P.; Li,N.; Bai,W.Z.; Qiu,X.C.; Ma,B.A.; Zhou,Y.; Fan,Q.Y.; Shan,L.Q.
Notch signaling plays a vital role in tumorigenicity and tumor progression by regulating proliferation, invasion, and the tumor microenvironment. Previous research by our group indicated that Notch ligand Delta-like 1 (Dll1) is involved in angiogenesis in melanoma, and we noticed that it took a longer time to trypsinize Dll1-expressing B16 melanoma cells than the control cells. In this article, we extended our study to investigate the effects of Dll1 on tumor cell adhesion and metastasis. Dll1 overexpression activated Notch signaling in B16 tumor cells and significantly enhanced the adhering capacity of B16 tumor cells both in vitro and in vivo. B16-Dll1 cells also had a higher metastatic potential than their counterpart in the mouse model of lung...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Delta-like 1; Notch signaling; Melanoma; Metastasis; Adhesion; N-cadherin.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000400299

Galectins: a key intersection between glycobiology and immunology
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Rabinovich,G.A.; Riera,C.M.; Landa,C.A.; Sotomayor,C.E.
Galectins are a family of evolutionarily conserved animal lectins, widely distributed from lower invertebrates to mammals. They share sequence and structure similarities in the carbohydrate recognition domain and specificity for polylactosamine-enriched glycoconjugates. In the last few years significant experimental data have been accumulated concerning their participation in different biological processes requiring carbohydrate recognition such as cell adhesion, cell growth regulation, inflammation, immunomodulation, apoptosis and metastasis. In the present review we will discuss some exciting questions and advances in galectin research, highlighting the significance of these proteins in immunological processes and their implications in biomedical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Galectins; Immunomodulation; Apoptosis; Adhesion; Embryogenesis; Metastasis.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000400002

NOP14 inhibits melanoma proliferation and metastasis by regulating Wnt/β-catenin signaling pathway
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Li,Jingrong; Fang,Ruihua; Wang,Jianqin; Deng,Liehua.
Malignant melanoma is an aggressive skin cancer with a high mortality rate. Nucleolar protein 14 (NOP14) has been implicated in cancer development. However, the role of NOP14 in malignant melanoma progression remains largely unclear. In this study, we observed that malignant melanoma tissue showed NOP14 down-regulation compared to melanocytic nevi tissues. Moreover, we observed that NOP14 expression was significantly associated with melanoma tumor thickness and lymph node metastasis. NOP14 overexpression in melanoma cells suppressed proliferation, caused G1 phase arrest, promoted apoptosis, and inhibited melanoma cell migration and invasion. Further investigations revealed that NOP14 overexpression reduced the expression levels of Wnt3a, β-catenin, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malignant melanoma; Metastasis; NOP14; Proliferation; Wnt/β-catenin pathway.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019000100604

P-selectin, carcinoma metastasis and heparin: novel mechanistic connections with therapeutic implications
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Varki,A.; Varki,N.M.
Metastasis is a multistep cascade initiated when malignant cells penetrate the tissue surrounding the primary tumor and enter the bloodstream. Classic studies indicated that blood platelets form complexes around tumor cells in the circulation and facilitate metastases. In other work, the anticoagulant drug heparin diminished metastasis in murine models, as well is in preliminary human studies. However, attempts to follow up the latter observation using vitamin K antagonists failed, indicating that the primary mechanism of heparin action was unrelated to its anticoagulant properties. Other studies showed that the overexpression of sialylated fucosylated glycans in human carcinomas is associated with a poor prognosis. We have now brought all these...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heparin; Carcinomas; P-selectin; Mucin; Metastasis.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000600003

Puerarin inhibits hepatocellular carcinoma invasion and metastasis through miR-21-mediated PTEN/AKT signaling to suppress the epithelial-mesenchymal transition
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Zhou,Yuan; Xue,Ruifeng; Wang,Jinglin; Ren,Haozhen.
Hepatocellular carcinoma (HCC) is one of the most common primary malignant tumors of the liver worldwide. Liver resection and transplantation are currently the only effective treatments; however, recurrence and metastasis rates are still high. Previous studies have shown that the epithelial-mesenchymal transition (EMT) is a key step in HCC invasion and metastasis. Inhibition of EMT has become a new therapeutic strategy for tumors. Recently, puerarin, a well-characterized component of traditional Chinese medicine, has been isolated from Pueraria radix and exerts positive effects on many diseases, particularly cancers. In this study, CCK-8, EdU immunofluorescence, colony formation, wound healing, and migration assays were used to detect the effects of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hepatocellular carcinoma; Metastasis; Epithelial-mesenchymal transition; PTEN; MiR-21.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000400611

Collagenase specificity in chondrosarcoma metastasis
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Scully,S.P.; Berend,K.R.; Qi,W.-N.; Harrelson,J.M.
The treatment of some mesenchymal malignancies has made significant gains over the past few decades with the development of effective systemic therapies. In contrast, the treatment of chondrosarcoma has been limited to surgical resection, with the most significant prognostic indicators being surgical margins and histologic grade. We have reported that MMP-1/TIMP-1 gene expression serves to prognosticate for tumor recurrence in this group of patients. This led to the hypothesis that collagenase activity facilitates cell egression from the cartilaginous matrix. In the current study we examine the specificity of collagenase gene expression in archival human chondrosarcoma samples using semi-quantitative PCR. Messenger RNA was affinity extracted and subject to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chondrosarcoma; Metastasis; Collagenase; Gene expression; Prognosis.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000700013

Is there a role for voltage-gated Na+ channels in the aggressiveness of breast cancer?
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Rhana,P.; Trivelato Junior,R.R.; Beirão,P.S.L.; Cruz,J.S.; Rodrigues,A.L.P.
Breast cancer is the most common cancer among women and its metastatic potential is responsible for numerous deaths. Thus, the need to find new targets for improving treatment, and even finding the cure, becomes increasingly greater. Ion channels are known to participate in several physiological functions, such as muscle contraction, cell volume regulation, immune response and cell proliferation. In breast cancer, different types of ion channels have been associated with tumorigenesis. Recently, voltage-gated Na+ channels (VGSC) have been implicated in the processes that lead to increased tumor aggressiveness. To explain this relationship, different theories, associated with pH changes, gene expression and intracellular Ca2+, have been proposed in an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breast cancer; Ion channels; Metastasis; Nav1.5 channel.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000700301

Spinal cord anaplastic meningioma with extra-neural metastasis in a cat
Provedor de dados: Ciência Rural
Autores: Prates,Klaus Scherer; Bianchi,Matheus Viezzer; Mello,Lauren Santos de; Matesco,Viviana Cauduro; Lorenzo,Cíntia de; Driemeier,David; Pavarini,Saulo Petinatti.
ABSTRACT:  Meningiomas are the most frequent neoplasms involving the brain in dogs and cats, and are occasionally observed in the spinal cord. They cause compression of the central nervous system; however, do not infiltrate the neuropile and rarely metastasize to other organs. The present study describes a case of anaplastic spinal meningioma with extra neural metastasis in a 20 years-old cat. Clinically, the feline presented a clinical history of 120 days with paresis of the hind limbs and loss of the tail’s movements, with subsequent death. At necropsy, there was an irregular and soft whitish mass involving the meninges from the lumbar intumescence to the sacral region of the spinal cord. Similar white nodular masses were observed in the lungs, liver and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ataxia; Immunohistochemistry; Spinal cord; Meningioma; Metastasis; Central nervous system.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000700550

Metastatic mammary carcinoma in a cow
Provedor de dados: Ciência Rural
Autores: Piva,Manoela Marchezan; Schwertz,Claiton Ismael; Henker,Luan Cleber; Millán,Yolanda; Mulas,Juana Martín de las; Stedille,Fernanda Augustini; Christ,Ricardo; Gabriel,Mateus Eloir; Silva,Teane Milagres Augusto da; Couto,Caroline do; Casagrande,Renata Assis; Medeiros,Diovane dos Santos; Mendes,Ricardo Evandro.
ABSTRACT: Mammary gland neoplasms in cattle are rarely observed in the field veterinary diagnostics routine. Therefore, the objective of this study is to report a metastatic mammary carcinoma in a fourteen-year-old Holstein cow in the state of Santa Catarina, Brazil. The animal was diagnosed by the field veterinarian with clinical mastitis that was unresponsive to treatment, and was euthanized due to the poor prognosis. At the necropsy, multiple yellow, firm, and sometimes friable nodules, ranging from 0.1 to 20cm were observed in all mammary glands, lymph nodes, kidneys, spleen, liver, pancreas, mediastinal lymph nodes, heart, and lungs. The final diagnosis of mammary carcinoma was established through the association of clinical, necropsy,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle diseases; Mammary neoplasia; Metastasis; Chronic mastitis; Cytokeratin.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700551

Hemangiopericytoma in a female dog with direct invasion of abdominal cavity and pulmonary metastasis
Provedor de dados: Ciência Rural
Autores: Silva,Elisângela Olegário da; Romero,Fernanda; Green,Kerriel Thandile; Martins,Maria Isabel Mello; Bracarense,Ana Paula Frederico Rodrigues Loureiro.
An intact adult female Poodle dog was presented with a history of an increase in volume in the left and right mammary inguinal glands. The histopathological examination revealed a proliferation of spindle cells arranged in bundles with concentric arrangements surrounding blood vessels, occasionally collapsed. Three weeks after the surgery, the animal presented a recurrence of the tumor that extended from the left inguinal mammary gland to the vulva. Necropsy revealed direct invasion of the abdominal cavity by the tumor and pulmonary metastasis. The definitive diagnosis of hemangiopericytoma was made by histopathological and immunohistochemical examination. Pulmonary metastasis of CHP (canine hemangiopericytoma) is rare and there is no previous report of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Perivascular wall tumors; Metastasis; Lung; Abdominal cavity; Dog.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000200026