A. Pelvic Cystic Masses

1. Tubo-ovarian Cyst
2. Tubo-ovarian Abscess
3. Endometriosis
4. Cystic Ovarian Neoplasm
5. Ectopic Pregnancy
6. Dermoid Cyst

B. Pelvic Non-Cystic Mass

1. Metastatic Tumor
   1. Stomach, Liver, Gall Bladder
   2. Lymphoma, Pancreas, Urinary Bladder
   3. Breast, Cervix
   4. Prostate, Seminiferous Tubule
2. Resident Tumor
   1. Dermoid Cyst, Teratoma
   2. Ovarian, Uterine CA
   3. Sarcoma: Lipo-, Myo-, Fibrosarcoma
   4. Lipoma
3. Inflammatory Mass
   1. Diverticulitis
   2. Pelvic Inflammatory Disease
   3. Lymphogranuloma venereum
   4. Retroperitoneal fibromatosis
   5. Proctitis, Periproctal Abscess
4. Bladder Enlargement