Dermoscopy of Actinic Lichen Planus in Skin of Color.

INTRODUCTION: Actinic Lichen Planus (ALP) is a rare photosensitive variant of lichen planus. Four subtypes can be distinguished: pigmented, annular (AALP), plaque-like and dyschromic ALP. METHODS: This is a retrospective; descriptive and analytical study investigating the dermoscopic patterns of different subtypes of ALP in skin of color. RESULTS: Sixteen adult patients were included in this study; the majority of them were young females, while five patients with the pigmented subtype of ALP were more than 50 years old. This subtype was more prevalent in patients with phototype IV. AALP was described in men with a very dark phototype.In pigmented melasma-like ALP, dermoscopy showed an annular granular pattern, white reticular and circular Wickham striae (WS) with hypopigmentation lacking skin creases, dots inside circles and an eccentric pigmentation on circles. In ALP, annular, circular WS; and perifollicular white halos with follicular plugs were described. The black hole pattern with dotted vessels was seen in the dyschromic ALP. White-yellow-bluish WS were noticed in plaque-type ALP with circumferential radial lines at the periphery. CONCLUSIONS: This descriptive study of dermoscopic patterns of various subtypes of ALP in skin of color highlighted new dermoscopic descriptions that vary according to the clinical variant or the morphology; lesions distribution; and phototype. Also, many epidemiological differences were found between our results and the literature concerning the older age of onset in melasma-like pigmented ALP, and the male predominance in annular ALP.

[Stewart-Treves syndrome]. / Syndrome de Stewart-Treves.

Détention d'armes et permis de chasser. Les armes à feu sont la cause de plus d'un millier de décès chaque année, représentant ainsi un objectif de santé publique conséquent. Pour les armes à feu de type B et C, le tir sportif et le permis de chasse, le médecin traitant joue un rôle crucial, délivrant à chaque fois un certificat selon des modalités bien particulières.

Oral White Sponge Nevus: An Exceptional Differential Diagnosis in Childhood.

White sponge nevus is an autosomal dominant skin disorder characterized by white, irregular, diffuse plaques mainly affecting the oral mucosa. Histological findings of white sponge nevus are characteristic but not pathognomonic. We report a case of an oral white sponge nevus in a 6-year-old girl, which poses a problem in differential diagnosis with oral candidiasis. No treatment was performed because of the benign and asymptomatic nature of the lesions.

Cutaneous sarcoidosis simulating porokeratosis of Mibelli.

We report a skin localization of systemic sarcoidosis, which presented with lesions that resemble porokeratosis of Mibelli. Skin biopsy showed non-caseating sarcoidal granuloma. Whereas cutaneous sarcoidosis is present in up to one-third of cases and may present with a wide variety of lesions, our presentation is uncommon. Partial remission was obtained with hydroxychloroquine and prednisone.

Nail changes in connective tissue diseases: a study of 39 cases.

The objective is to identify nail unit changes associated with connective tissue diseases (CTD) and evaluate their frequency. We carried a prospective study between March 2012 and March2013 in our department. All patients with CTD were included. A clinical examination of the fingernails was done by the same dermatologist. Nail features were noted and classified and photos taken. Thirty nine patients were enrolled including: 16 systemic sclerosis, 14 lupus erythematosus (SLE), 8 dermatomyositis (DM), 1 primary Sjorgen's syndrome. The mean age was 40 years old. The mean duration of the disease was 6 years. Nail unit changes were present in 27 patients (69%). The abnormalities observed were Longitidunal ridging in 11 patients, Peri ungueal erythema in 10 patients, Peri-ungual telangiectasia in 11 patients, Ragged cuticle in 10 patients fingertips scars in 9 patients, Increase of longitudinal curvature and beaking of the nail in 4 patients, Increase in transverse curvature in 4 patients, dyschromia of the proximal nail fold in 3 patients, Subungual hyperkeratosis in 3 patients, onycholysis in 2 patients, splinter haemorrhages in 3 patients, nail plate pigmentation in 2 patients, pseudoclubbing in 1 patient, macrolunula in 1 patients, Red lunulae in one patient, bluish-black discoloration of the nail plate in one patient. The proximal nailfold was found to be most sites affected.

Hennekam syndrome: a rare cause of primary lymphedema.

Hennekam syndrome (HS) is an autosomal recessive disorder characterized by the association of lymphedema, intestinal lymphangiectasia, moderate mental retardation, and facial dysmorphism. We describe a 14-year-old girl affected with Hennekam syndrome.