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Choriocarcinoma Presenting as a Pleural Effusion
Leonard Hamera1, Marie-Louise Posch1, Sunoj Abraham2
1Internal Medicine, Citrus Memorial Hospital, Inverness, USA.
Cureus
|September 14, 2020
Summary
Primary mediastinal choriocarcinoma, a rare germ cell tumor, presents aggressively with non-specific symptoms. Early diagnosis via biopsy is crucial for effective treatment of this challenging malignancy.
Area of Science:
- Oncology
- Pathology
Background:
- Choriocarcinoma is an aggressive germ cell tumor known for early metastasis and poor prognosis.
- Non-gestational choriocarcinoma, a type of trophoblastic disease, is particularly invasive.
- Primary mediastinal choriocarcinoma is exceptionally rare, predominantly affecting young males.
Observation:
- A 47-year-old female presented with dyspnea and cough, exhibiting elevated alkaline phosphatase, human chorionic gonadotropin (hCG), and cancer antigen 125.
- Imaging revealed a right pleural effusion and an anterior mediastinal mass.
- Thoracentesis confirmed malignant cells suggestive of a germ cell tumor.
Findings:
- Biopsy of the mediastinal mass showed positivity for inhibin, hCG, and CD-10.
- These markers confirmed the diagnosis of primary choriocarcinoma.
- The patient's presentation, though atypical for the typical demographic, led to a definitive diagnosis.
Implications:
- Primary mediastinal choriocarcinoma requires a high index of suspicion due to its aggressive nature and often vague symptoms.
- Prompt tissue biopsy is essential for accurate diagnosis and guiding timely, appropriate therapeutic interventions.
- This case highlights the importance of considering rare diagnoses even in atypical patient demographics.
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