Adenocarcinoma Arising in an Enteric Duplication Cyst: A Rare Malignancy at an Uncommon Site
R. Lakshmi *
Department of Pathology, Aster MIMS, Calicut, India.
Kavitha KP
Department of Pathology, Aster MIMS, Calicut, India.
*Author to whom correspondence should be addressed.
Abstract
Enteric duplication cysts are rare congenital anomalies usually presenting in early childhood. Malignant transformation within these cysts is exceedingly uncommon, particularly in adults. We report a rare case of moderately differentiated adenocarcinoma arising in a jejunal duplication cyst in a 36-year-old adult. This patient was incidentally diagnosed following surgical resection. Histopathological examination revealed dysplastic intestinal and gastric epithelium with invasive adenocarcinoma infiltrating the muscularis propria and lymph node metastasis. This case highlights the malignant potential of enteric duplication cysts and emphasizes the importance of thorough histopathological evaluation.
Keywords: Enteric duplication cyst, jejunum, adenocarcinoma, adult, rare malignancy