Table 2.

Differential diagnoses for calcified malignant abdominopelvic masses

Calcified malignant abdominopelvic masses	Etiology
Calcified hepatic metastases	Colorectal, pancreatic, ovarian, thyroid cancers, carcinoid tumors, GIST
Calcified peritoneal metastases	Ovarian (serous papillary), colorectal, pseudomyxoma peritonei
Calcified malignant pancreatic tumors	Neuroendocrine tumors, adenocarcinoma
Calcified malignant mesenteric masses	Carcinoid tumor
Calcified malignant renal masses	Renal cell carcinoma, TCC, osteosarcoma metastases
Calcified lymph nodal metastases	Colorectal cancer, carcinoid tumor, treated lymphoma
Calcified malignant retroperitoneal masses	Extraskeletal osteosarcoma, germ cell tumors

GIST, gastrointestinal stromal tumor; TCC, transitional cell carcinoma.