Tiny carcinoids may be malignant.
Seow-Cheoen
F
F
Ho
J
J
D000230:Adenocarcinoma / Q000473:pathology*; D002276:Carcinoid Tumor / Q000473:pathology*; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D012004:Rectal Neoplasms / Q000473:pathology*