Peer-reviewed veterinary case report
Ultrasound signs of lymphoma spread in cats' abdomen
By Morgan, Keaton R S et al.·Published in Journal of veterinary internal medicine·2018·Veterinary Specialist Group·View original on PubMed →
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Original publication title: Sonographic features of peritoneal lymphomatosis in 4 cats.
- Species:
- cat
Plain-English summary
A 5-year-old domestic shorthair cat was diagnosed with a rare condition called peritoneal lymphomatosis, which is a type of cancer spread from the intestines to the abdominal lining. The cat showed signs of illness, and ultrasound imaging revealed thickened areas in the intestines and stomach, along with some fluid in the abdomen. Treatment options for this condition can vary, but it's important to consult with a veterinarian for the best approach. Unfortunately, the prognosis for this type of lymphoma can be serious, so early detection and treatment are crucial.
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Abstract
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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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/29572942/