Primary signet ring cell carcinoma of the colon: A rare condition with a poor prognosis. A report on two cases | Revista de Gastroenterología de México
A Patient with Signet Ring Cell Carcinoma of the Pancreas with a Prolonged Course: A Case Report
Signet ring cell carcinoma - Wikipedia
Non-neoplastic signet-ring cells in a colonic tubular adenoma | Gastroenterología y Hepatología (English Edition)