Primary intracranial β-human chorionic gonadotropin-producing leiomyosarcoma in a 2-year-old immunocompetent child.

The authors present a rare case of primary intracranial leiomyosarcoma (LMS) in a young, immunocompetent boy. The patient presented with an expanding right forehead mass. Diagnostic workup revealed multiple large intracranial tumors. The largest mass was resected, and pathological analysis revealed LMS. Given the poor prognosis of this tumor, the family declined further care, and the child died 3 months later. Primary LMSs are extremely rare tumors in the pediatric population, especially in patients who are not immunocompromised.