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Sonographic features of peritoneal lymphomatosis in 4 cats

BACKGROUND: The metastatic spread of feline lymphoma to the peritoneum (“lymphomatosis”) has been rarely reported in the literature. The sonographic features specific to this rare disease manifestation have not been described and have important treatment and prognostic considerations prompting defin...

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Autores principales: Morgan, Keaton R. S., North, Courtney E., Thompson, Devon J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5980441/
https://www.ncbi.nlm.nih.gov/pubmed/29572942
http://dx.doi.org/10.1111/jvim.15099
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author Morgan, Keaton R. S.
North, Courtney E.
Thompson, Devon J.
author_facet Morgan, Keaton R. S.
North, Courtney E.
Thompson, Devon J.
author_sort Morgan, Keaton R. S.
collection PubMed
description BACKGROUND: The metastatic spread of feline lymphoma to the peritoneum (“lymphomatosis”) has been rarely reported in the literature. The sonographic features specific to this rare disease manifestation have not been described and have important treatment and prognostic considerations prompting definitive diagnosis. OBJECTIVES: To describe the ultrasonic features of feline peritoneal lymphomatosis. ANIMALS: Four cats with alimentary lymphoma and peritoneal metastasis confirmed using cytology, histology, or both. RESULTS: The sonographic features described include either a nonobstructive, focally diffuse, and circumferential intestinal mass, or an eccentric, focally diffuse, gastric mass. The intestinal and gastric lesions exhibited hypo‐to‐anechoic transmural wall thickening with loss of wall layering in association with discrete‐to‐coalescing plaques or sheets of thickened, hypoechoic tissue throughout the mesentery or omenta. All cases exhibited only small volumes of anechoic free peritoneal fluid. Three of the 4 cats also had multiple small hypoechoic nodular foci on the parietal and/or visceral peritoneal surfaces. Two cats had bilateral renomegaly because of lymphoma invasion (2/4) and 1 cat had local lymphadenopathy secondary to lymphoma invasion (1/4). CONCLUSIONS AND CLINICAL IMPORTANCE: Peritoneal lymphomatosis is a rare manifestation of lymphoma metastasis and to date appears to be associated specifically with B‐cell alimentary lymphoma.
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spelling pubmed-59804412018-06-06 Sonographic features of peritoneal lymphomatosis in 4 cats Morgan, Keaton R. S. North, Courtney E. Thompson, Devon J. J Vet Intern Med SMALL ANIMAL BACKGROUND: The metastatic spread of feline lymphoma to the peritoneum (“lymphomatosis”) has been rarely reported in the literature. The sonographic features specific to this rare disease manifestation have not been described and have important treatment and prognostic considerations prompting definitive diagnosis. OBJECTIVES: To describe the ultrasonic features of feline peritoneal lymphomatosis. ANIMALS: Four cats with alimentary lymphoma and peritoneal metastasis confirmed using cytology, histology, or both. RESULTS: The sonographic features described include either a nonobstructive, focally diffuse, and circumferential intestinal mass, or an eccentric, focally diffuse, gastric mass. The intestinal and gastric lesions exhibited hypo‐to‐anechoic transmural wall thickening with loss of wall layering in association with discrete‐to‐coalescing plaques or sheets of thickened, hypoechoic tissue throughout the mesentery or omenta. All cases exhibited only small volumes of anechoic free peritoneal fluid. Three of the 4 cats also had multiple small hypoechoic nodular foci on the parietal and/or visceral peritoneal surfaces. Two cats had bilateral renomegaly because of lymphoma invasion (2/4) and 1 cat had local lymphadenopathy secondary to lymphoma invasion (1/4). CONCLUSIONS AND CLINICAL IMPORTANCE: Peritoneal lymphomatosis is a rare manifestation of lymphoma metastasis and to date appears to be associated specifically with B‐cell alimentary lymphoma. John Wiley and Sons Inc. 2018-03-23 2018 /pmc/articles/PMC5980441/ /pubmed/29572942 http://dx.doi.org/10.1111/jvim.15099 Text en Copyright © 2018 The Authors. Journal of Veterinary Internal Medicine published by Wiley Periodicals, Inc. on behalf of the American College of Veterinary Internal Medicine. This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
spellingShingle SMALL ANIMAL
Morgan, Keaton R. S.
North, Courtney E.
Thompson, Devon J.
Sonographic features of peritoneal lymphomatosis in 4 cats
title Sonographic features of peritoneal lymphomatosis in 4 cats
title_full Sonographic features of peritoneal lymphomatosis in 4 cats
title_fullStr Sonographic features of peritoneal lymphomatosis in 4 cats
title_full_unstemmed Sonographic features of peritoneal lymphomatosis in 4 cats
title_short Sonographic features of peritoneal lymphomatosis in 4 cats
title_sort sonographic features of peritoneal lymphomatosis in 4 cats
topic SMALL ANIMAL
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5980441/
https://www.ncbi.nlm.nih.gov/pubmed/29572942
http://dx.doi.org/10.1111/jvim.15099
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