Borderline Tuberculoid leprosy of the scalp mimicking alopecia areata-vitiligo overlap syndrome: A case report

The scalp is known to be a zone relatively immune to Mycobacterium leprae. Regardless, there have been multiple reports of multibacillary (MB) leprosy affecting the scalp. However, less than ten paucibacillary leprosy (PB) cases with scalp involvement are known, two of which also had patches of alopecia. Herein, we report the third case of 'leprotic alopecia' in a 26-year-old female secondary to PB leprosy. Although the clinical picture mimicked alopecia areata-vitiligo overlap syndrome, histopathological examination revealed borderline tuberculoid (BT) leprosy of the scalp.