Evolution of histological patterns from 66 leprosy patients presented reactivation during or after treatment.

*Patients were grouped according to the pattern of the first biopsy.**In parentheses are the 9 cases with relapse. (I) Indeterminate, (TT) tuberculoid-torpid, (TRc) tuberculoid-reactional, (BT) borderline-tuberculoid, (BTRc) borderline-tuberculoid-reactional, (BB) borderline-borderline, (BBRc) borderline-borderline-reactional, (BL) borderline-lepromatosus, (LLsp) lepromatous- subpolar, (-) biopsy not done.