Sato Yasuhiro, Onuma Hiroyuki, Okubo Shuniti, Fujikawa Kouji, Shintani Naoaki, Takahashi Yasuo
Department of Gastroenterology, National Hospital Organization Hokkaido Cancer Center, Japan.
Nihon Shokakibyo Gakkai Zasshi. 2007 May;104(5):678-83.
A 62-year-old man was admitted to our hospital because of elevated serum CEA and CA19-9. Colonoscopy disclosed a submucosal tumor (SMT) in the ascending colon. CT showed a tumor with partial calcification, 40 x 30 mm in size. FDG-PET showed no abnormal uptake in the tumor. During a follow-up three months later, colonoscopy showed an ulcer on the upper surface of the SMT, and pathological findings of the biopsy specimen disclosed mucinous adenocarcinoma. Right hemicolectomy was performed. Pathological findings of the resected specimen showed mucinous adenocarcinoma invading the subserosa with heterotopic ossification of the same site as the calcification on CT.
