Malignant carcinoid tumor of the appendix.
D001063:Appendiceal Neoplasms / Q000150:complications / Q000473:pathology*; D002276:Carcinoid Tumor / Q000150:complications / Q000473:pathology*; D006801:Humans; D007416:Intestinal Perforation / Q000209:etiology; D008113:Liver Neoplasms / Q000150:complications*; D008297:Male; D008303:Malignant Carcinoid Syndrome / Q000473:pathology*; D008875:Middle Aged; D009362:Neoplasm Metastasis / Q000473:pathology*; D010538:Peritonitis / Q000209:etiology