Baboon syndrome induced by ketoconazole.

A 27-year-old male patient presented with a maculopapular eruption on the flexural areas and buttocks after using oral ketoconazole. The patient was diagnosed with drug-induced baboon syndrome based on his history, which included prior sensitivity to topical ketoconazole, a physical examination, and histopathological findings. Baboon syndrome is a drug- or contact allergen-related maculopapular eruption that typically involves the flexural and gluteal areas. To the best of our knowledge, this is the first reported case of ketoconazole-induced baboon syndrome in the English literature.