Dormant Congenital Dermal Sinus Reawakened by Leishmaniasis in Buttock
A middle‑aged woman develops a draining buttock lesion due to cutaneous leishmaniasis, revealing a decades‑old congenital dermal sinus that was reactivated by the parasite; after medical treatment and surgical removal, doctors confirmed no spinal connection, and the case is highlighted to raise awareness of this rare presentation of leishmaniasis, a neglected tropical disease affecting over a million people annually.