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A case of a Beta-human chorionic gonadotropin secreting sinonasal teratocarcinosarcoma.


ABSTRACT: Background and Importance Sinonasal teratocarcinosarcoma (SNTCS) is an unusual and aggressive neoplasm characterized by the combination of teratoma and carcinosarcoma features that is often misdiagnosed based on a biopsy sample. Approximately 60 cases have been reported in the English literature, but none have been associated with serum tumor markers. We report a case of SNTCS with elevation of serum β-human chorionic gonadotropin (hCG) level. Clinical Presentation The patient was a 22-year-old pregnant woman at diagnosis, and her β-hCG level was appropriately elevated. Her initial treatment was a surgical resection followed by radiation therapy (RT). Two years later, the patient had a pregnancy work-up after a sexual assault. Her serum β-hCG was elevated, but a nongravid uterus was seen on ultrasound. Magnetic resonance imaging (MRI) of the head revealed an intracranial tumor recurrence in the right frontal lobe. During salvage RT, β-hCG decreased rapidly to normal levels, with a complete tumor response on MRI. Retrospective examination of the initial surgical specimen showed expression of β-hCG associated with the anaplastic mesenchymal component. Conclusion This is the first reported case of a β-hCG secreting SNTCS. The source of β-hCG production was traced to a neoplastic smooth muscle component of the tumor.

SUBMITTER: Weinberg BD 

PROVIDER: S-EPMC4110143 | biostudies-other | 2014 Aug

REPOSITORIES: biostudies-other

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