Vitiligo over follicular psoriasis: A case of colocalization and the concept of “locus minoris resistentiae”

Vitiligo and psoriasis are seldom encountered simultaneously. Follicular psoriasis is a lesser known presentation of psoriasis, occurring on hairy areas of the body. Locus minoris resistentiae, an age old postulation, where in a single site in the body is more prone to develop diseases as compared to other sites can be attributed to co-occurence of these two diseases. Here in, we report to you a case of vitiligo over a pre-existing follicular psoriasis lesion.