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Year : 2020  |  Volume : 11  |  Issue : 6  |  Page : 948-952

Lupus vulgaris in darker skin: Dermoscopic and histopathologic incongruity

1 Department of Dermatology, S. Nijalingappa Medical College, Bagalkot, Karnataka, India
2 Department of Dermatology, Shri B M Patil Medical College Hospital and Research Centre, BLDE (Deemed to be University), Vijayapur, Karnataka, India
3 Department of Community Medicine, S. Nijalingappa Medical College, Bagalkot, Karnataka, India

Correspondence Address:
Balachandra S Ankad
Department of Dermatology, S. Nijalingappa Medical College, Near APMC, Navanagar, Bagalkot - 587 103, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/idoj.IDOJ_100_20

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Introduction: Lupus Vulgaris (LV) is the chronic, progressive, tissue destructive form of cutaneous tuberculosis. LV should be diagnosed and treated to prevent scaring and deformities. Histopathology is the gold standard for the diagnosis. Dermoscopy is helpful tool in diagnosing different dermatological condition. Here, dermoscopic and histopathogical correlation in LV was attempted. Materials and Methods: It was a cross sectional, observational study done from February 2019 to October 2019. Nineteen patients of LV were included. Dermlite 4 with attached smart phone (iphone) was employed. LV lesions were subjected to skin biopsy to confirm the diagnosis. Results: Study enrolled 19 patients, with 8males, 5 female and 6 children. Dermoscopy showed yellowish-white globules, white structureless areas and white scales were noted in 19 (100%) patients. Telangiectasias were seen in 16 (84.21%) patients as long linear, branching and short linear vessels. Pinkish-red background was noted in all patients (100% n=19). Newer observations included white shiny streaks, white rosettes and bluish hue. Age, sex, duration of lesions had no influence in the dermoscopic patterns. Discrepancy in dermoscopic-histopathologic correlation was noted. Facial lesions showed increased frequency of follicular plugs, patulous follicles and white rosettes. Conclusion: Dermoscopy is widely gaining importance in the realm of dermatology. In this study, dermoscopy demonstrated characteristic patterns in LV. Thus, dermoscopy a non-invasive procedure can be used as diagnostic tool in many infective dermatoses.

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