Clinicohistopathological concordance in leprosy - a clinical, histopathological and bacteriological study of 100 cases.

Abstract

Leprosy is a treatable chronic infectious disease, prevalent in South Asian countries, especially India. Before labeling a patient as a case of leprosy and starting multidrug treatment for particular type, the clinical findings should be correlated and confirmed with histopathological examination and bacteriological index of skin biopsy. Skin biopsy is an important tool in diagnosing leprosy and determining the type of leprosy. In the present study, one hundred untreated clinically diagnosed cases of leprosy were studied according to Ridley-Jopling scale for confirmation of diagnosis and classification of leprosy. The study was done by routine H & E (Haematoxylin & Eosin) staining and Fite-Faraco's staining for acid-fast bacillus. The data pertaining to age, sex, clinical and histopathological classification of the type of leprosy were collected and analyzed. In analyzing the histopathology of a lesion, special attention was given to the following features, viz., invasion of the epidermis with or without erosion, involvement of the sub-epidermal zone, character and extent of granuloma, density of lymphocytic infiltrate epithelioid cells and other cellular elements, nerve involvement and the presence of Mycobacterium leprae. Histological diagnosis of leprosy was established in 98% of clinically diagnosed cases. Clinicohistopathological concordance was maximum in LL(93.75%) followed by BL(87.5%), TT(78.5%), BT(73.8%) and least in IL(27.78%). Overall, it was 60.23%. Indeterminate type of leprosy was diagnosed more on histologythan on clinical evaluation.

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@article{Giridhar2012ClinicohistopathologicalCI, title={Clinicohistopathological concordance in leprosy - a clinical, histopathological and bacteriological study of 100 cases.}, author={M. Giridhar and Gulhima Arora and K Lajpal and K Singh Chahal}, journal={Indian journal of leprosy}, year={2012}, volume={84 3}, pages={217-25} }