Biomedical subjects
R V Koranne
Publications and source records attributed to R V Koranne.
Unusual clinical manifestations of cutaneous tuberculosis.
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Clinicopathology and immunohistochemistry of genital warts.
Genital warts are a fairly common sexually transmitted disease and often affect young, illiterate subjects of poor socioeconomic status in India. The mean incubation period was 2.4 months, and the duration varied from 10 days to 4 years. Hyperplastic sessile, verruca vulgaris-like, and flat variants of warts were seen in that sequence, with distinct clinical features. The epidermal and the dermal changes were largely identical; however, the flat type in the epidermal changes were inconspicuous. Koilocytosis was a pathognomonic feature in 28, whereas human papilloma virus (HPV) antigens were detected through peroxidase-antiperoxidase technique in 18 patients.
Primary drug resistance to both rifampicin and dapsone in a paucibacillary leprosy patient.
A thirty-one year old male patient was diagnosed and treated for a pure or better primary neuritic case of leprosy with dapsone (100 mg daily for 2 years) and rifampicin (600 mg daily for 6 months). From the very outset, the patient did not show any improvement; on the top of it, he subsequently, developed a cutaneous patch, which on histopathological examination, revealed classical features of BT leprosy. Acid-fast bacilli were absent both in skin slit smear and histologic section. A primary resistance to both dapsone and rifampicin, even in paucibacillary patient, is speculated.
Correlation of morphological, bacteriological, histopathological and immunological feature of leprosy. A double-blind study.
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Unusual manifestations of Reiter's disease in a child.
Reiter's disease in a child, manifesting as circumscribed, thick, hyperkeratotic, rupioid lesions over the skin and later in the course of the disease developing pyopericardium and cardiac failure, is reported. Recovery of Chlamydia from the urethral discharge, too, was significant.
Systemic involvement in tuberculoid leprosy--pathogenesis of leprosy.
Occurrence of leprous pathology/bacilli in the internal organs in cases of polar tuberculoid leprosy, support the systemic nature and haematagenous transmission and spread of the disease process. Pathogenesis of leprosy has been postulated.
Mycobacterium leprae in the striated muscle of tuberculoid leprosy patients.
Striated muscle specimens from 24 untreated proved cases of tuberculoid leprosy and five healthy normal individuals were studied histopathologically for the evidence of leprous pathology. Atrophy or damage to the muscle fibre was not observed in any patient. Nineteen (79.16%) cases showed evidence of leprosy in striated muscles. Seventeen (70.83%) cases showed scanty histiocytic infiltrate between the muscle fibres. Thirteen (54.16%) cases had acid fast bacilli mostly inside the muscle. There was no correlation between the location of the bacilli and that of the histiocytes; in two cases, acid fast bacilli were seen without the histocyte. The bacilli were solidly staining and were lying singly in the undamaged muscle. There was no evidence of tuberculosis and, in the Control group, none showed any AFB or infiltrate. The presence of lepra bacilli did not depend upon the location of the muscle. Two of the muscle specimens not underneath the cutaneous lesions also had acid fast bacilli. 21.05% of these cases also showed simultaneous involvement of liver and lymph nodes. These are strong evidences of systemic nature of disease in tuberculoid leprosy as well.
Bone-marrow in tuberculoid leprosy.
Twenty-four untreated patients of proved tuberculoid leprosy and five healthy controls were investigated for the involvement of bone-marrow. The cytology was essentially normal and no acid-fast bacilli was seen in the bone-marrow smears.
Liver involvement in tuberculoid leprosy.
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The histopathology of type I (lepra) and type II (ENL) reactions in leprosy.
The histopathological features in type I (lepra) reaction comprised a loose and disorganised granuloma in the upper and mid-dermis, dermal edema and variable cellular contents, namely, epithelioid cells, lymphocytes, giant cells, and macrophages. While ENL reactions, were characterised by predominant involvement of subcutaneous vessels, vasculitis, and polymorphonuclear infiltration in and around the blood vessels.
Erythema nodosum leprosum (ENL) in histoid leprosy.
The morphological features of ENL, occurring in histoid leprosy are described. Its infrequent occurrence has been emphasised. The possible immunopathogenesis of its occurrence in histoid leprosy is briefly outlined.