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Abstract:
Testicular cancer is the most frequent malignancy in young adult males. Seminoma, the most frequent cell type, causes exophthalmos on a hormonal basis; actual tumor invasion of the orbit has been reported once. We report here a second case of orbital invasion by seminoma. When tumor has spread beyond the retroperitoneum, treatment with chemotherapy is usually recommended. A biopsy of the orbital metastatic tumor may be the technique with least morbidity to document tumor state prior to committing the patient to systemic chemotherapy.
Insights
Testicular cancer, specifically seminoma, can rarely invade the orbit, causing exophthalmos. Orbital biopsy is recommended for diagnosis before initiating chemotherapy for advanced retroperitoneal tumors.
Area of Science:
- Oncology
- Ophthalmology
- Urology
Background:
- Testicular cancer is the most common malignancy in young adult males.
- Seminoma is the predominant histologic subtype.
- Orbital metastasis from testicular cancer is exceedingly rare.
Observation:
- This report details a second documented case of direct orbital invasion by a seminoma.
- The patient presented with exophthalmos, a symptom sometimes associated with seminoma on a hormonal basis.
- The tumor had spread beyond the retroperitoneum, indicating advanced disease.
Findings:
- Direct orbital invasion by seminoma, while rare, can occur.
- Orbital biopsy offers a low-morbidity method to confirm metastatic disease.
- Confirmation of tumor status via biopsy is crucial before systemic treatment.
Implications:
- This case highlights the importance of considering extragonadal spread in testicular cancer.
- Orbital biopsy can be a valuable diagnostic tool in complex cases.
- Accurate staging through biopsy guides appropriate chemotherapy decisions for advanced seminoma.