Introduction. Dermatological damage in chronic hemodialysis patients is not uncommon. In Benin, to date, no study on the dermatological manifestations of chronic hemodialysis patients has been carried out. However, the presence of cutaneous signs is evident in these patients, and the need for dermatological care is not negligible. The objective of this study was to identify the epidemiological and clinical profile of the main dermatological manifestations presented by chronic hemodialysis patients at the NTH-HKM of Cotonou (Benin). Methods. This was a descriptive cross-sectional study conducted in chronic hemodialysis patients from May 15th to September 15th, 2018. Included were all patients seen during the study period who had been on hemodialysis for at least three months, had at least one dermatological manifestation, and gave verbal or written consent. Chronic hemodialysis patients who did not wish to participate in the survey were excluded. Results. 87 patients were included in the study for a hospital frequency of 33.8%. The sex ratio (male to female) was 2. The median age was 49 years (IQ [40.75–59]). Median age in hemodialysis was 36 months with two weekly sessions. The main dermatological manifestations were xerosis (48.3%), pruritus (34.5%), alopecia (14%), nail dystrophy (9.2%), equisegmented nails (8%), and melanoderma (8%). Pruritus was associated with a longer duration of hemodialysis sessions p=0.01, while xerosis, alopecia, and melanoderma were associated with seniority in hemodialysis. Conclusion. Cutaneous manifestations in hemodialysis patients were frequent and dominated by xerosis, pruritus, and alopecia. Factors associated with some of these dermatologic manifestations were seniority in hemodialysis, long duration of the hemodialysis session, and female gender.
Introduction The objective of this work is to document the epidemiological, clinical, and etiological features of prurigo in children. Methods This is a descriptive and retrospective study done from January 2013 to September 2018 in the Dermatology Department of National and Teaching Hospital HKM of Cotonou. All children from 0–18 years diagnosed clinically with prurigo were the study sample. Visual analog scale was used to assess the severity of pruritus. The data were entered and analyzed with EpiData and Epi Info 7 software. Results The prevalence of prurigo was 14.9% (234/1565) in the pediatric population. The mean age of the children at the onset of the disease was 5.4 years ± 4.9 years. Their sex ratio was 0.8. Pruritus was reported in 97.8% of cases; it was moderate in 50% and severe in 50%. Several phenotypes were described, including erosivo-crusted prurigo (36.3%) and papulo-vesicular prurigo (32%). Frequently observed clinical forms were chronic (44.4%), acute (38.9%), impetiginized (8.1%), and lichenified (4.3%). Prurigo predominated on the lower limbs (74.8%), upper limbs (47.9%), and buttocks and trunk (24.8% each). The main etiologies were prurigo strophulus (PS) (55.5%), scabiosis (20.5%), prurigo of Besnier (10.7%), and hookworm cutaneous larva migrans (HCLM) (8.5%). The PS was seasonal (p=0.036), while prurigo of Besnier, scabies, and HCLM were perennial. Conclusion The main etiologies of prurigo in the study participants were PS, prurigo of Besnier, scabiosis, and HCLM. It affected with predilection the limbs of children of less than 5 years. Prurigo was almost always itchy and often evolved in an acute or chronic mode.
Introduction: Deep subcutaneous mycosis results from the involvement of subcutaneous tissue by microscopic fungi. Few studies have been conducted on these diseases in Benin. Patients and methods: This was a retrospective descriptive study that included all cases of subcutaneous mycosis recorded in the Dermatology-Venerology Department of the CNHU-HKM from 2009 to 2020. Results: 3 cases of deep subcutaneous mycosis were recorded in 12 years, including two cases of basidiobolomycosis and one case of fungal mycetoma. The cases of basidiobolomycosis were observed in two girls aged 7 and 8 years whose lesions were located on the right buttock, in the form of indurated placards, adherent to the superficial plane, measuring respectively 10cm by 5cm and 14cm by 7cm. Mycological examination of the biopsy specimens isolated Basidiobolus ranarum. The only case of fungal mycetoma was observed in a 39-year-old man, in the form of a nodular placard measuring 14cm by 12cm, polyfistulised, inflammatory and squamous-crusty with an irregular border that had been evolving for 15 years. Mycological examination of the pus revealed the presence of black grains and the identification of Madurella mycetomatis. Treatment with Ketoconazole was initiated in all three patients but the evolution could not be appreciated. Conclusion : Subcutaneous mycosis is rare in Cotonou, but probably underestimated. Keywords: Subcutaneous Mycosis; Mycetoma; Basidiobolomycosis; Benin
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