Post Cryptococcal Moyamoya Syndrome in Adult Human Immunodeficiency Virus Patient With Anterior and Posterior Circulation Involvement: Case Report.

Moyamoya disease (MMD) is a rare idiopathic progressive vaso-occlusive disease characterized by irreversible vascular occlusion and collateral development of distal internal carotid arteries. Initially perceived as an exclusive entity to the East Asian population, the disease is now being reported globally, affecting individuals of diverse ethnicities. We present a case of a 55-year-old African American male patient with human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) and a prior history of cryptococcal meningitis presenting to the emergency department with recurrent episodic headaches, which was refractory to routine medical therapy.