Women's Eruptive Genital Syringoma: A Case Observed at the Dermatology-Venerology Department of the National Hospital University Center of Bangui, Central African Republic
Syringoma is often localized to the face. The aim of this work is to describe the first case of female genital syringoma observed in Bangui. Miss B, aged 19 years old, living in Bangui, consulted on September 13, 2019 for a genital pruritis. There is a history of carcinoma in her older sister. The physical examination shows a general good condition, elastic vulvar edema with a rash of small papules. The hypotheses of early condyloma and syringoma have been raised. The histology result is in favor of a syringoma. The patient was proposed for medical evacuation to a country with Laser. This case, which is the first in Bangui, should lead clinicians to think of syringoma when faced with a papular genital rash.
Introduction
Syringomas are benign skin tumors of the ecrin or apocrine sweat glands [1]. It is a developmental abnormality of the sweat glands favored by genetics and mycotic infections [2, 3]. It reaches 1% of the population and predominates in phototypes 4 to 6 [4]. Syringoma appears in flare-ups in young subjects, most often of the female sex [5]. There are family forms [6]. The disease presents as firm, smooth papules, pink in color or discreetly yellow or pigmented [5]. It affects more the face around the eyelids (Figure 1), but the rest of the body may be affected [5]. There are several clinical forms including the solitary form, the eruptive form, the plaque form, the miliary form. Solitary genital syringoma is rare and the vulvar rash is exceptional [5, 6, 7, 8, 9]. The aim of this work is to describe the first case of female genital eruptive syringoma observed in Bangui.
Observation
Miss BP, aged 19, living in Bangui, consulted on September 13, 2019 for genital pruritus. There is a history of fatal carcinoma in her older sister constituting psychosis in her mother. Physical examination shows general condition, elastic vulvar edema with a rash of small, smooth papules (Figure 2). Hypotheses of early condyloma and syringoma have been raised. The histology result showed a tumor proliferation located in the dermis. The tumor grows at the expense of dilated or narrow ducts making a comet- like appearance and lined with a double layer of epithelial cells without cytonuclear atypia or mitosis. The stroma is fibrous with vessels and a very discreet infiltrate (Figure 3).
The conclusion is in favor of a syringoma. The patient was proposed for medical evacuation to a country with Laser.
Comment: this case is the first observed in Bangui. The patient is young and female as described in the literature [5, 8, 9]. The disease may be associated with certain pathologies or be an integral part of certain syndromes such as Nicolau Balus syndrome (the other elements of which have not been found), mongolism, Marfan disease and Ehlers-Danlos disease [5, 10]. Etiopathogenically, there was no familial notion of syringoma or mycotic infection [11]; the hormones were not measured in our patient, in particular the progesterone observed by Yorganci, et al [12]. Carcinophobia was observed in her mother as reported by Kopéra, et al [13]. Clinically, the disease was revealed by pruritus as reported by Tay, et al [14] and Kopéra [13]. Treatment of syringoma is discussed on a case-by-case basis with respect to the location and number of lesions between cryotherapy, electrocautery, curettage, endolesional dissection, cryosurgery or laser surgery [1, 15]. Electrocoagulation seems to give better results according to Grosshans [5]. All these more or less aggressive methods can lead to scars and residual pigmentations. Some authors have used drug treatments alone or in combination with Laser such as trichloroacetic acid by Kang, et al [16]. Recently Christine [17] reported a personal experience of successful medical treatment by application of alovera gel combined with biopepin vegetable oil of sea buckthorn for almost a month. The profuse eruption and the vulvar localization of our case led us to consider evacuation to a center with a laser.



Conclusion
This first case described in Bangui should lead clinicians to think about syringoma when faced with a papular genital rash and decision-makers to equip the services with various therapeutic means, in particular the laser.
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