[Extrapodal mycetomas in Senegal: epidemiological, clinical and etiological study of 82 cases diagnosed from 2000 to 2020]. / Les mycétomes extrapodaux au Sénégal : étude épidémiologique, clinique et étiologique de 82 cas diagnostiqués de 2000 à 2020.

Objectives: Although the foot remains the main localization of mycetomas, extrapodal attacks, which are rarely studied, are also possible and occur either initially or following an extension. The objectives were to describe the epidemiological, clinical and etiological features of extrapodal mycetomas in Senegal. Methodology: Cross-sectional and retrospective study with multicentric enrollment in four reference department, two of which are in dermatology and two in orthopedics and traumatology. We included the files of patients with extrapodal mycetoma followed from January 2000 to December 2020. The data were analysed with SPSS software. Any p less than or equal to 0.05 was statistically significant. Results: We collected 82 cases representing 39% of mycetoma cases (n = 210). The average age was 41.9. The sex ratio was 3.1. Professionally, most patients were active farmers in 51% of cases (n = 33), pastoralists and housewives in 9 % (n = 6) respectively. The mean duration of evolution was 7.5 years. Exclusively extrapodal topographies were noted in 84% of cases (n = 69). Foot and extrapodal locations were concomitant in 16% of cases (n = 13). Mycetoma foci were distributed as follows: 59 in the trunk, 47 in the lower limbs, 9 in the upper limbs, 1 in the scalp and 1 in the neck. The etiology was actinomycotic in 46% of cases (n = 38), fungal in 38% (n = 31). It was not specified in 16% of cases (n = 13). Bone involvement occurs after 5 years (p = 0.001) unrelated to the etiology (p = 0.6). Conclusion: Extrapodal mycetomas are secondary to direct inoculation. However, extension to bone is exclusively due to diagnostic delay. Periodic consultations in endemic areas combined with training of resident health personnel are necessary for early diagnosis in order to improve the prognosis.

Kerion celsi due to Microsporum audouinii: a severe form in an immunocompetent girl.

A 9-year-old girl presented a large inflammatory cup-shaped scalp lesion with alopecia surrounded by pustules, dander, and suppuration associated with an occipital inflammatory lymphadenopathy for 1 month. Wood's light exam was positive as well as KOH mount showing ectothrix type hair involvement. Hair and pus culture on Sabouraud dextrose agar (SDA) added with chloramphenicol and supplemented with cycloheximide isolated a dermatophyte species identified as Microsporum audouinii according to the colonies features. Species identification was confirmed by matrix-assisted laser desorption-ionization-time of flight mass spectrometry (MALDI-TOF MS) and the patient was treated for kerion celsi with terbinafine tablets 125 mg per day associated with a ketoconazole-based shampoo. The evolution was favorable, with hair regrowth after 2 months.

[Cutaneous tuberculosis affecting the buttock in an immunocompetent adult patient]. / Une histoire de fesse: cas d'une tuberculose gommeuse de la fesse chez un adulte immunocompétent.

Tuberculosis is an endemic disease in Senegal. It rarely affects the skin. In these patients it is characterized by clinical polymorphism. It accounts for 2% of extra-pulmonary tuberculosis. We here report the case of an immunocompetent patient with tuberculosis affecting the buttock characterized by lesions gummy in consistency revealing active pulmonary involvement. This study involved a 47-year-old man admitted for a painful swelling in the right gluteal region that had evolved for four years. Physical examination objectified a polyfistulized hardened plaque characterized by confluent nodules and discharge of yellowish pus in the lower and inner face of the right buttock associated with bilateral inguinal inflammatory adenopathies. The diagnosis of skin tuberculosis was retained based on histological examination which showed tuberculoid granuloma and the detection of Alcohol-Acid Resistant Bacilli (BAAR) in the gastric fluid. Thoracoabdominopelvic CT scan showed multiple bilateral basal lung micronodules with a "bud tree" appearance. Serologic testing for HIV and HBV were negative. The patient achieved recovery after six months of tuberculosis treatment. In endemic areas, skin tuberculosis is characterized by clinical polymorphism. It should be suspected in patients with perineal abscess lesion.

Epidemiology, clinical features, and associated factors in 78 cases of lichen planus on black skin.

BACKGROUND: The pathogenesis of lichen planus (LP) is mostly autoimmune, while psychological and infectious factors are recognized to trigger or aggravate the disease. An association with diabetes is reported. Our objective was to determine the epidemio-clinical characteristics of LP and its associated factors. METHODS: This multicentric, prospective study was conducted over a 6-month period. The histopathology was only performed for atypical forms. Patients with a notion of drug intake before the rash were excluded. Anti-hepatitis C Virus (HCV) antibodies screening was systematical in case of mucosal damage. The data were analyzed using the SPSS IBM 20 software. RESULTS: The average age was 38 years. Women represented 84.6% (n = 66) of the studied population. The patients were married in 61.5%. Obesity or overweight status was noted in 41%. A marital or relational conflict was found in 25.6%. History of LP was reported in 24.4% (n = 19). Pruritus was found in 96.2%. The locations were as follows: skin (97.4%), mucous membranes (15.4%), and hair and nails (5.1%). Lesions were diffuse in 56.4%. The clinical forms were as follows: typical (52.6%), erythematosquamous (17%), warty (14.5%), pigmented (14.5%), and blaschkolinear (one case). Histopathology confirmed the diagnosis of LP in 91.4%. Blood sugar level was high in one case. Hepatitis B surface antigen (HBsAg) was positive in 3.03%. Anti-HIV and anti-HCV antibodies were negative. CONCLUSION: Lichen planus is a relatively rare disease in sub-Saharan Africa and is seen more in adults. The clinical manifestations are polymorphic, but the mucosal damage is rarely isolated.

[Contribution of cutaneous manifestations to early diagnosis of periodic disease: a case study]. / Apport des signes cutanés sur le diagnostic précoce d'une maladie périodique: à propos d'un cas.

We here report a case of chronic periodic disease diagnosed on the basis of recurrent and persistent erysipelas in plaques in a patient under antibiotic therapy. Patient's interview, genetic testing and favorable outcome of colchicine helped to reach a diagnosis.

Confirmed Case of Buruli Ulcer, Senegal, 2018.

Buruli ulcer is a necrotizing skin disease caused by Mycobacterium ulcerans and is usually associated with tropical climates and exposure to slow-moving or stagnant water. We report a case of Buruli ulcer that may have originated in an urban semiarid area of Senegal.

[Epidemiological and anatomoclinical features of scalp tumors in black Africans]. / Aspects épidémiologiques et anatomo-cliniques des tumeurs du cuir chevelu chez le noir africain.

INTRODUCTION: In Senegal, the studies on scalp tumors are almost non-existent. The purpose of our study was to determine the epidemiological and anatomoclinical features of scalp tumors in dermatology. METHODS: We conducted a prospective descriptive and analytical study in both Department of Dermatology at Dakar over a period of 16 months (01 March 2014-30 June 2015). Histopathological examination was used to confirm the diagnosis. RESULTS: We collected data from the medical records of 36 patients, of whom 14 had malignant tumors and 22 benign tumors. Sex ratio was 1.1, the average age of patients with malignant tumors was 51 years while the average age of patients with benign tumors was 39 years. Hospitalization rate was 0.18%. The average time of consultation in patients with malignant tumors was 14 months, while in patients with benign tumors was 52 months. In 11 patients with malignant tumors, first treatment was based on traditional therapy. Malignant tumors included: squamous cell carcinoma (n=8), basal-cell carcinoma (n=3), lymphoma, hidradenocarcinoma and Darier-Ferrand dermatofibrosarcoma (one case for each type). Benign tumors included: botriomycoma (n=5), trichilemmal cyst, sebaceous hamartoma, cylindroma and lipoma (2 cases for each type), heloid, syringocystadenoma papilliferum, schwannoma, neurofibroma and nevus (one case for each type). Tumor malignancy was associated to ulcero-budding appearance (p=0.003), diameter >4 cm (p=0.05), pain (p=0.009) and bleeding (p= 0.006). CONCLUSION: Scalp tumors in black people are usually benign. Squamous cell carcinoma is the most common malignant form.

[Endemic Kaposi's sarcoma in Dakar: 29 cases]. / Maladie de kaposi endemique a Dakar: etude de 29 cas.

INTRODUCTION: There is a lack of data on endemic Kaposi's sarcoma in sub-Saharan Africa. The goal of this study was to clarify its epidemiological, clinical and therapeutic aspects in that region. PATIENTS AND METHODS: A 7-years retrospective study, including all patients with endemic Kaposi's disease diagnosis was carried out. RESULTS: We identified 29 cases of endemic Kaposi's representing 1.2% of total hospitalizations and an incidence of 4.4. The mean age and the sex ratio were 63.2 years 2.22 respectively. The average delayed time to seek for medical care was 6.75 months. Cutaneous manifestations were dominated by angiomatous papulonodular lesions in 15 cases (51.72%) ulcerated lesions in 8 cases (27.58%), lymphedema in 5 cases (17.24%), a sarcomatous degeneration in 2 cases and verrucous papules in one case. Mucosal involvement was observed in 7 cases (24.13%). The extracutaneous lesions were noted in 18 cases, with 6 cases of bone, 5 cases of lymph nodes, 5 cases of gastrointestinal and 2 cases of lung involvement. The outcome was favorable for single-agent chemotherapy with bleomycin in more than half of the cases. Recurrences were observed in 2 patients, 2 cases were died and 7 cases never came back. CONCLUSION: Endemic Kaposi's disease is more frequent in elderly people with a higher frequency of extracutaneous involvement and florid forms.

INTRODUCTION: En Afrique sub-saharienne il existe peu de données concernant la maladie de kaposi endémique. L'objectif de ce travail, était de préciser ses aspects épidémiologiques, cliniques et thérapeutiques. MALADES ET MÉTHODES: Une étude rétrospective d'une durée de 7 ans, recensant tous les malades présentant une maladie de kaposi endémique. RÉSULTATS: Nous avions recensé 29 cas de maladie de kaposi endémique représentant 1,2% des hospitalisés soit une fréquence annuelle de 4,14 cas par an. La moyenne d'âge était de 63,2 ans et le sex-ratio de 2,22. Le délai moyen de consultation était de 6.75 mois. Les manifestations cutanées étaient dominées par les lésions papulo-nodulaires angiomateuses dans 15 cas (51,72%), de lésions ulcérées dans 8 cas (27,58 %), d'un lymphœdème dans 5 cas (17,24%), une dégénérescence sarcomateuse sans 2 cas et des papules verruqueuses dans un cas. Les localisations muqueuses étaient notées dans 7 cas (24,13%). Les atteintes extracutanées notées dans 18 cas, étaient osseuses dans 6 cas, ganglionnaires dans 5 cas, digestives dans 5 cas et pulmonaires dans 2 cas. L'évolution était favorable sous monochimiothérapie à la bléomycine dans plus de la moitié des cas. Les récidives étaient observées chez 2 malades, des perdus de vus dans 7cas et 2 cas de décès. CONCLUSION: La maladie de kaposi endémique prédomine chez les personnes âgées avec une fréquence élevée des atteintes extracutanées et des formes florides.