P21.01 Primary intracranial round cell sarcoma in an HIV patient: a case report

Abstract

Primary intracranial sarcoma among patients diagnosed with HIV is rare. Case reports published have shown that there is an increasing number of cases of leiomyosarcoma, hemangiopericytoma and rhabdomyosarcoma among these patients. Further, there are also few reports that sarcomas may present atypically, sometimes mimicking a brain abscess. We report a case of a 26 year old male, newly diagnosed HIV, who presented with bilateral chronic suppurative otitis media associated fever, headache and vomiting. Neuroimaging showed with multiple rim enhancing masses on the left temporal, parietal and occipital areas and bilaterally sclerosed mastoid air cells. Initial impression was an otogenic abscess. Burrhole craniotomy and evacuation of the cystic masses was done. Histopathologic examination revealed a small round blue cell sarcoma. Different immunostains were done to differentiate the various subtypes of sarcomas possible. Patient was discharged improved but did not consent to chemotherapy or radiotherapy.Also, we present a review of literature of the different primary intracranial sarcomas among patients diagnosed with HIV.