“…One of the pathological variants of FSGS, the collapsing type, is of particular interest because of its increasing incidence, frequent association with black race, HIV-1 infection, and IV drug abuse [16][17][18][19][20][21][22][23][24][25][26]. Collapsing FSGS is uncommonly reported from the tropics [27,28]. Until now, no detailed clinicopathologic analysis of this lesion has been reported from Pakistan.…”