Adnexal mass causes
Causes by Organ System
| Cardiovascular | No underlying causes |
| Chemical / poisoning | No underlying causes |
| Dermatologic | No underlying causes |
| Drug Side Effect | No underlying causes |
| Ear Nose Throat | No underlying causes |
| Endocrine | No underlying causes |
| Environmental | No underlying causes |
| Gastroenterologic | No underlying causes |
| Genetic | No underlying causes |
| Hematologic | No underlying causes |
| Iatrogenic | No underlying causes |
| Infectious Disease | Tuboovarian abscess |
| Musculoskeletal / Ortho | No underlying causes |
| Neurologic | No underlying causes |
| Nutritional / Metabolic | No underlying causes |
| Obstetric/ Gynecologic | Functional Ovarian Cysts, Ectopic pregnancy, Theca lutein cysts, Corpus luteum of pregnancy, Polycystic ovary syndrome, Endometrioma |
| Oncologic | Benign: Surface epithelial - stromal tumours
Serous tumours: Benign (cystadenoma),Borderline tumours (serous borderline tumour), Malignant (serous adenocarcinoma); Mucinous tumours endocervical-like and intestinal type: Benign (cystadenoma), Borderline tumours (mucinous borderline tumour), Malignant (mucinous adenocarcinoma); Endometrioid tumours: Benign (cystadenoma), Borderline tumours (endometrioid borderline tumour), Malignant (endometrioid adenocarcinoma); Clear cell tumours: Benign, Borderline tumours, Malignant (clear cell adenocarcinoma); Transitional cell tumours: Brenner tumour, Brenner tumour of borderline malignancy, Malignant Brenner tumour; Transitional cell carcinoma (non-Brenner type) Epithelial-stromal: Adenosarcoma, Carcinosarcoma (formerly mixed Muellerian tumours). Sex cord - stromal tumours Granulosa cell tumour: Fibromas, Fibrothecomas, Thecomas; Sertoli-Leydig cell tumour; Sex cord-stromal tumour, Gynandroblastoma; Steroid (lipid) cell tumours. Germ cell tumours Teratoma: Immature, Mature, Solid, Cystic (dermoid cyst); Monodermal (e.g., struma ovarii, carcinoid); Dysgerminoma, Embryonal carcinoma, Polyembryoma, Yolk sac tumor (endodermal sinus tumour); Mixed germ cell tumours. Metastatic cancer from nonovarian primary: Colon, Appendiceal, Gastric, Breast. Ovarian Malignant lymphoma, Leukemia, Plasmacytoma; Fallopian tubal carcinoma, Paratubal or paraovarian cysts, tumours of the rete ovarii. Borderline:Surface epithelial stromal tumors,Serous borderline tumour, Mucinous borderline tumour, Endometrioid borderline tumour, Clear cell borderline tumours, Brenner tumour of borderline malignancy Malignant:Surface epithelial stromal tumors,Serous adenocarcinoma, Mucinous adenocarcinoma, Endometrioid adenocarcinoma, Malignant Brenner tumour |
| Opthalmologic | No underlying causes |
| Overdose / Toxicity | No underlying causes |
| Psychiatric | No underlying causes |
| Pulmonary | No underlying causes |
| Renal / Electrolyte | No underlying causes |
| Rheum / Immune / Allergy | No underlying causes |
| Sexual | No underlying causes |
| Trauma | No underlying causes |
| Urologic | No underlying causes |
| Miscellaneous | No underlying causes |