Ovary
Psammoma body formation is common to malignant serous tumors of the ovary.
What our notes say
- Psammoma body formation is common to malignant serous tumors of the ovary. (Female system — Past Paper Questions & Answers)
- Fluid-filled sacs in or on the ovary that may be functional or pathological. (Year 4 Gynaecology CAT 1 (MBOG 4212): 2 July 2021)
- The number of oocytes in the ovary remains constant until menopause (Junior Clerkship in Reproductive Health (MBOG 4200): end of year examination, 4 )
- A 30-year-old woman has primary infertility and dysmenorrhoea, and ultrasound shows a 6 cm endometrioma in the left ovary. (Year 6 Gynaecology CAT 1 (MBOG 6511): 13 December 2019, 4 short answers and 16 M)
- Oligomenorrhoea: infrequent periods, with a cycle longer than 35 days, usually from anovulation as in polycystic ovary syndrome. (Gynaecology Year 4 CAT (MBOG 4212): 30 November 2018, ovarian cysts, abnormal me)
- Clinical: implantation low in the uterus gives placenta praevia; implantation in the tube, ovary, cervix or caesarean scar gives an ectopic pregnancy; bleeding at implantation can be mistaken for a light period. (Gametogenesis, fertilisation and the first two weeks of development)
Study material on Ovary
- Female Reproductive Pathology: HPV, Cancer, PCOS & Pregnancy
- Clinical Endocrinology Cases: Pituitary Tumour, PCOS, Type 1 Diabetes, and HHS
- Female system
- Gametogenesis, fertilisation and the first two weeks of development
- Medical MCQs: Chemical Pathology & Haematology Exam Review
- CamScanner 07 07 2026 14.14 — Past Paper Questions & Answers
Practice questions on Ovary
The Brenner tumour of the ovary is characterised histologically by nests of
- Mucin-secreting columnar cells in fibrous stroma
- Transitional-type epithelium resembling urinary tract in abundant stroma
- Immature neuroepithelial elements within cystic spaces
- Ciliated serous cells with psammoma body formation
Answer: B. Brenner tumour contains nests of transitional-type epithelium resembling the urinary tract within abundant fibrous stroma. Most are benign and unilateral. ---
Polycystic ovary syndrome (PCOS) classically shows which LH:FSH ratio?
- 1:1
- Greater than 2:1
- Less than 1:1
- 3:1 FSH dominant
Answer: B. LH:FSH ratio greater than 2:1 (often 3:1) is characteristic of PCOS. ---
Most frequent tumours of the ovary
- Sex cord stromal tumours
- Germ cell tumours
- Surface epithelial-stromal cell tumours
- Immature teratomas
Answer: C. Surface epithelial-stromal cell tumors are the most common type of ovarian neoplasms, accounting for 65-70% of cases. ---
A young woman presents with pelvic pain and enlarged ovary. Histology reveals primordial germ cells with clear cytoplasm and central nuclei resembling seminoma. Which ovarian tumour is most likely?
- Dysgerminoma
- Teratoma
- Fibroma
- Thecoma
- Granulosa cell tumour ✅ Answer: A
Answer: A. Dysgerminoma is a malignant germ cell tumor of the ovary, histologically characterized by large, clear cells with central nuclei, resembling seminoma.
A 26-year-old woman develops severe dysmenorrhea and infertility. Laparoscopy shows chocolate cysts in the ovary. Which diagnosis is most likely?
- Ovarian carcinoma
- Teratoma
- Hydrosalpinx
- Endometriosis
- Ovarian cyst ✅ Answer: D
Answer: A. Endometriosis is characterized by the presence of endometrial tissue outside the uterus, often forming "chocolate cysts" (endometriomas) on the ovaries, leading to dysmenorrhea and infertility.