Malignant transformation of a duodenal duplication cyst in a cat
نویسندگان
چکیده
CASE SUMMARY A 15-year-old domestic shorthair cat presented for lethargy, vomiting and anorexia. Abdominal ultrasound showed a bi-lobed cystic duodenal mass. Based on ultrasonographic features, malignant transformation of a duodenal duplication cyst was suspected. A resection and anastomosis was performed. Histology of the mass was consistent with carcinoma and an intestinal mucosa was present along the inner surface of the mass, suggestive of a duplication cyst. The patient returned 3 months postsurgery with recurrence of clinical signs. Abdominal ultrasound showed a recurrent duodenal mass at the surgery site and body wall nodules. Fine-needle aspirates of these lesions showed epithelial neoplasia. Owing to the poor prognosis, the owners elected euthanasia. RELEVANCE AND NOVEL INFORMATION Malignant transformation of duplication cysts in cats is rare but can be detected on ultrasound. The described ultrasonographic features can aid in prioritization of malignant transformation of duplication cysts as a differential diagnosis.
منابع مشابه
Duodenal duplication cyst with profound elevation of intracystic carbohydrate antigen (CA 19-9) and carcinoembryonic antigen (CEA): a rare but important differential in the diagnosis of cystic tumours of the pancreas.
CONTEXT Enteric duplication cysts are rare lesions of uncertain incidence and natural history. Pre-operative confirmation of diagnosis can be difficult. This case reports an adult duodenal duplication cyst presenting with grossly elevated intra-lesional levels of tumour markers. CASE REPORT A 57-year-old female was found to have a complex cystic lesion of the head of the pancreas. Intra-lesio...
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