TY - JOUR KW - Biopsy KW - diagnosis KW - Disease KW - Epidemiology KW - Immersion KW - leprosy KW - Light KW - Macrophages KW - Medicine KW - Microscopy KW - Mucous Membrane KW - Nepal KW - Neurology KW - Paper KW - Patients KW - Peripheral nerves KW - Schwann Cells KW - Skin KW - Time KW - Transmission AU - Pedley J C AU - Harman D J AU - Wauday H AU - McDougall A C AB - From a series of 342 nerve biopsies taken by one clinician over a period of 12 years in Nepal, this paper describes the histopathological findings in 153 biopsies from 119 patients suffering from tuberculoid, borderline (dimorphous) or lepromatous leprosy, who were untreated at the time of first presentation and diagnosis. They were taken during the course of other studies, mainly concerned with the mode of transmission of leprosy, and which included biopsies of skin, dartos muscle, nasal mucous membrane and nipple, results of which have already been published. Examination of serial sections by light microscopy revealed a density of cellular infiltration in non-lepromatous cases, or of bacilli in macrophages and Schwann cells in lepromatous cases, which was marked in degree and usually widespread from one end of the biopsy to the other. Intraneural caseation was recorded in four patients with tuberculoid or borderline-tuberculoid leprosy, and many others in this part of the spectrum showed extensive disruption of perineurial and endoneurial structure. In lepromatous patients, the numbers of bacilli in the endoneurial area not infrequently exceeded one thousand per oil immersion field. Although well known to histopathologists familiar with this disease, it is considered that the significance of these findings, in patients presenting for the first time, is not well appreciated by those working in general medicine, neurology, epidemiology, or even in leprosy control BT - Journal of Neurology Neurosurgery and Psychiatry DA - 1980/// IS - 3 LA - eng N1 - Cited By (since 1996): 8 Export Date: 17 April 2007 Source: Scopus N2 - From a series of 342 nerve biopsies taken by one clinician over a period of 12 years in Nepal, this paper describes the histopathological findings in 153 biopsies from 119 patients suffering from tuberculoid, borderline (dimorphous) or lepromatous leprosy, who were untreated at the time of first presentation and diagnosis. They were taken during the course of other studies, mainly concerned with the mode of transmission of leprosy, and which included biopsies of skin, dartos muscle, nasal mucous membrane and nipple, results of which have already been published. Examination of serial sections by light microscopy revealed a density of cellular infiltration in non-lepromatous cases, or of bacilli in macrophages and Schwann cells in lepromatous cases, which was marked in degree and usually widespread from one end of the biopsy to the other. Intraneural caseation was recorded in four patients with tuberculoid or borderline-tuberculoid leprosy, and many others in this part of the spectrum showed extensive disruption of perineurial and endoneurial structure. In lepromatous patients, the numbers of bacilli in the endoneurial area not infrequently exceeded one thousand per oil immersion field. Although well known to histopathologists familiar with this disease, it is considered that the significance of these findings, in patients presenting for the first time, is not well appreciated by those working in general medicine, neurology, epidemiology, or even in leprosy control PY - 1980 SP - 198 EP - 204 T2 - Journal of Neurology Neurosurgery and Psychiatry TI - Leprosy in peripheral nerves: Histopathological findings in 119 untreated patients in Nepal UR - http://www.scopus.com/scopus/inward/record.url?eid=2-s2.0-0018840372&partnerID=40&rel=R6.0.0 VL - 43 ER -