Question

Difficulty: MediumGynecologic Oncology

Match each characteristic histological or clinical presentation of a gynecologic neoplasm with its most closely associated serum tumor marker.

  • An ovarian neoplasm characterized by sheets of uniform cells with clear cytoplasm and central nuclei, separated by fibrous septa containing a lymphocytic infiltrate.Lactate dehydrogenase (LDH)
  • An aggressive germ cell tumor characterized histologically by Schiller-Duval bodies, which are papillary structures resembling primitive glomeruli.Alpha-fetoprotein (AFP)
  • A malignant epithelial ovarian tumor frequently presenting with bilateral complex cystic masses; histology demonstrates papillary structures and concentric calcified concretions.Cancer antigen 125 (CA-125)
  • A hormonally active ovarian tumor in a postmenopausal woman presenting with vaginal bleeding and endometrial hyperplasia; histology reveals Call-Exner bodies.Inhibin

Answer

Dysgerminoma matches with LDH, Yolk sac tumor matches with AFP, Serous cystadenocarcinoma matches with CA-125, and Granulosa cell tumor matches with Inhibin.
Each ovarian tumor type has a distinct embryologic origin, histological appearance, and biochemical profile. Recognizing the unique combinations (e.g., Schiller-Duval bodies with AFP, or Call-Exner bodies with Inhibin) is essential for correct classification and subsequent management.

Step-by-Step Solution

1
Identify the tumor described by clear cells and lymphocytic infiltrates.
Dysgerminoma, which corresponds to elevated Lactate dehydrogenase (LDH).
Dysgerminoma is a germ cell tumor with classic 'fried egg' appearance on histology and commonly secretes LDH.
2
Identify the tumor characterized by Schiller-Duval bodies.
Yolk sac tumor, which corresponds to elevated Alpha-fetoprotein (AFP).
Schiller-Duval bodies are pathognomonic for yolk sac tumors, which are associated with very high serum AFP levels.
3
Identify the bilateral tumor with psammoma bodies.
Serous cystadenocarcinoma, which corresponds to Cancer antigen 125 (CA-125).
Epithelial ovarian cancers, such as serous cystadenocarcinomas, typically produce CA-125, which is used for monitoring.
4
Identify the estrogen-producing tumor with Call-Exner bodies.
Granulosa cell tumor, which corresponds to Inhibin.
Granulosa cell tumors are sex cord-stromal tumors that secrete inhibin and estrogen, leading to symptoms like postmenopausal bleeding.

Key Concept

Diagnosis and monitoring of ovarian neoplasms rely heavily on specific serum tumor markers correlated with histological findings.
Estimated Time:1m 30s
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