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SPINDLE CELL VARIANT EMBRYONAL RHABDOMYOSARCOMA IN AN IMMUNOCOMPROMISED ADULT: A CASE REPORT
DEP. OF OTORHINOLARYNGOLOGY - HEAD AND NECK SURGERY, EAST AVENUE MEDICAL CENTER
GILLIAN TRINIDAD BARZAGA, GILLIAN T. BARZAGA, MEL RUSSEL A. PAGUIRIGAN
Rhabdomyosarcoma is the most common malignant tumor of the ear in children. We report a case of a 31-year old male with HIV presenting with a right external auditory canal mass which was determined to be a spindle-cell variant embryonal rhabdomyosarcoma. A 31-year old Filipino male presented with 3 months history of mild intermittent right ear pain accompanied by ear fullness, and yellowish non-foul smelling otorrhea. Unrecalled prescription otic drops relieved symptoms temporarily. 2 months prior to consultation, he developed progressive hearing loss, and bloody otorrhea during manipulation of the right ear. Consultation showed a fleshy mass in his right ear canal. Computed tomography revealed the mass extended into the middle ear. Biopsy and tissue staining resulted to a diagnosis of embryonal rhabdomyosarcoma, spindle-cell variant. Rhabdomyosarcoma is a primitive mesenchymal malignant tumor with a tendency for striated muscle tissue differentiation. In adults, the most common location in this age group is in the extremities. The most common histologic type is pleomorphic rhabdomyosarcoma which portends a worse prognosis compared to spindle cell embryonal rhabdomyosarcoma.


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