Omental tumor

Omental tumors can be divided into two types: primary and secondary. Most are metastatic tumors, and the primary site is usually the colon, stomach, pancreas or ovary. Primary omental tumors are very rare and can be benign or malignant. Benign tumors include lipomas, leiomyomas, hemangiomas, and neurofibromas. Malignant tumors include leiomyosarcoma, rhabdomyosarcoma, hemangiopericytoma, fibrosarcoma, and myxoma.