RESUMO
Background: Facial acanthosis nigricans (FAN) is an underrecognized and underdiagnosed entity. The typical presentation of acanthosis nigricans (AN) seen elsewhere on the body like axillae and groins is not seen on the face, making it mimic other pigmentary disorders. Moreover, FAN is seldom not accompanied with AN on the classical sites making the diagnosis challenging. The aims of this study were to determine clinical, dermoscopic, and histopathological features of FAN and to estimate the prevalence of obesity and insulin resistance (IR) in FAN. Methods: Forty cases of FAN and forty healthy nonobese individuals with comparable ages and gender were included in the study. Body mass index, waist circumference, hip circumference, waist to hip ratio, and serum fasting lipid levels were used to evaluate obesity, whereas serum fasting insulin and Homeostatic Model of Assessment of Insulin Resistance (HOMA-IR) were used to evaluate IR. Dermoscopy was performed in all cases. Histopathological features of the skin biopsies were reviewed. Results: Out of the 40 cases, 24 were male and 16 were female. The patterns of facial pigmentation in addition to the classic pattern were a hyperpigmented band over forehead (55%), periorbital darkening (25%), perioral (10%), and generalized darkening (10%). Dermoscopy in all cases revealed linear crista cutis, sulcus cutis, and hyperpigmented dots in crista cutis. Biopsy of 20 cases showed mild hyperkeratosis, acanthosis, papillomatosis, and increase in basal melanin. Clinico-dermoscopic-histological correlation showed that milder (light brown) variants of FAN had follicular plugging and subtle sulci pattern with irregular brown globules and perifollicular pigmentation on dermoscopy and mild hyperkeratosis and hypermelanization of the basal layer with minimal acanthosis and papillomatosis on histopathology. On the other hand, chronic variants (dark brown and black) showed prominent sulci, larger brown globules, and perifollicular hyperpigmentation on dermoscopy and moderate hyperkeratosis and hypermelanization of the basal layer with moderate to severe acanthosis and papillomatosis on histopathology. Fasting blood glucose, insulin, HOMA-IR, fasting serum triglyceride, and total cholesterol were statistically significantly high in cases in comparison with controls (P-value <0.05). Conclusions: Varied clinical presentations of FAN were observed. Dermoscopy and histopathology provide a good aid. FAN may be considered as a cutaneous marker of obesity and IR. Thus, FAN should be suspected in patients presenting with facial melanosis who are obese and have AN over other sites, although FAN can also present de novo.
RESUMO
BACKGROUND: Despite the implementation of multidrug therapy by WHO to treat Hansen's disease (HD), new case detection rates are still high indicating active transmission. AIMS AND OBJECTIVES: To study the clinical profile of HD in central India along with its epidemiological characteristics. MATERIALS AND METHODS: Medical records of clinically diagnosed Hansen's patients were recruited retrospectively during January 2015 to December 2018. Case records were evaluated with respect to demographic, clinical, histopathological, and bacteriological investigations, development of reaction, and deformities. Patients were classified based on Ridley Jopling classification and treated accordingly. Statistical analysis was done using proportion, mean, and percentage. RESULTS: A total of 400 new patients were enrolled and males outnumbered females. Maximum cases, 115 (28.75%), were in the age group of 31-40 years. Sixteen (4%) cases belonged to the pediatric age (less than 18 years) group. Most common clinical spectrum was borderline lepromatous (n = 156, 39%) followed by lepromatous HD (n = 120, 30%). Eleven patients had pure neuritic HD and nine had histoid HD. Grade 2 deformity was found in 52 and grade 1 deformity was found in 16 patients. Most common lepra reaction was type 2 lepra reaction (n = 112, 28%). Thirteen (3.25%) patients were of relapse of HD among which maximum eight were BL HD followed by LL HD three (0.75%) and TT HD two (0.5%). CONCLUSION: Early diagnosis is very important for timely and proper implementation of treatment which will prevent sequelae and physical disabilities that can have an impact on the individual's social and working life, which are responsible for stigma and prejudice regarding the disease. Detection of this huge number of cases signifies a high burden of HD in this area even in the post elimination era.
RESUMO
Leprosy, a chronic granulomatous disease, has been known since ages but even today continues to baffle the clinicians with a wide spectrum of clinical, histopathological, and immunological characteristics. Leprosy reactions are mainly of two types, namely, Type 1 and Type 2. In Type 1 leprosy reaction, the preexisting lesions become erythematous, edematous, and rarely ulcerate. Ulcerating Type 1 reaction is called lazarine leprosy. Ulcerations may occur in borderline tuberculoid (BT) pole or borderline lepromatous pole but more common in BT pole. In this postelimination era of leprosy, we report an interesting case report of BT Hansen's disease with Type 1 lepra reaction with ulceration, namely, lazarine leprosy.
