1. Hidden past history
Uterine myomectomy
Surgical findings
Omental mass 및 T-colon mesentery부근의 mass의 excision시행
Feeding vessel은 right colic artery에서 유래한 것으로 보임
Pathology report
Leiomyoma

2. Mesenteric and omental lesions (In Gore textbook)
Primary neoplasm
Desmoid tumors
Malignant peritoneal mesothelioma
Primary peritoneal serous carcinoma
Well-differentiated papillary mesothelioma
Multicystic peritoneal mesothelioma
Desmoplastic small round cell tumor
Adenomatoid tumor
Other primary mesenchymal tumors : hemangioma, hemangiopericytoma, lymphangioma, lipoma, liposarcoma, neurogenic tumor, leiomyomatosis peritonealis disseminata (LPD), sarcoma
Secondary tumors
Peritoneal carcinomatosis
Carcinoid tumor
Lymphoma

3. Benign uterine variants of leiomyoma with extra-uterine disease
Primarily in reproductive age women
Often respond to therapies that reduce serum estrogen concentration
Pathobiological mechanism: remains to be determined
Estrogen stimulation
Peritoneal dissemination secondary to fibroid resection or hysterectomy
Peritoneal metaplasia: sometimes developed in female with no uterine myoma
Leiomyomatosis peritonealis disseminata (LPD), intravenous leiomyomatosis, benign metastasizing leiomyomas 

4. Leiomyomatosis peritonealis disseminata or disseminated peritoneal leiomyomatosis
Generally benign and asymptomatic
a small number (probably <5 %) undergo malignant transformation
Imaging
CT: homogeneous enhancing masses in all over the peritoneal surfaces (esp. near the uterus)
MRI: multiple well-defined peritoneal nodules
T1 intermediate SI (similar to pelvic wall muscles), T2 low SI, homogeneous enhancement
Malignant transformation: large peritoneal nodules with central necrosis, smooth outer margins, liver metastasis