Fusarium and Lomentospora coinfection in a pediatric patient with acute myelogenous leukemia: Always Occam's razor may not apply

•Coinfection with two invasive molds, Fusarium and Lomentospora, is a rare phenomenon.•Invasive fungal infections are difficult to treat; high mortality is associated with host immune status.•Anchoring bias based on the initial diagnosis can delay the diagnosis of a coinfection.