[Mucinous nevus of late onset].

Introduction: Mucinous nevus is a rare disease characterized by mucin deposits in the dermis, with only 23 cases reported to date. It belongs to the connective tissue nevus family and is characterized by dermal mucin deposits. Two histological subtypes have been described: pure mucinous dermal nevus (connective tissue nevus of the proteoglycan [CTNP]) and combined mucinous nevus (combined CTNP) associating epidermal nevus with dermal mucin deposits.

[Livedo-like cutaneous sarcoidosis].

Background: The cutaneous signs of sarcoidosis are extremely polymorphous and may be classified under several different headings.

Patients And Methods: Herein, we report the case of a 51-year-old female patient presenting bilateral livedo of the knees accompanied by systemic signs with polyarthralgia, impaired general state of health, weight loss, and a sensation of dyspnoea. Skin biopsy revealed giant-cell granuloma around the dermal vessels, with no caseous necrosis.

[Adult kwashiorkor: a rare complication of bariatric surgery].

Introduction: Kwashiorkor is a clinical manifestation of global protein-calorie malnutrition that is described mainly in children in developing countries initially presenting eczema-like skin disease associated with hydrops.

Observation: We report the case of a 44-year-old woman with dark skin who had undergone bariatric surgery for treatment of stage-III obesity without regular monitoring and who was hospitalized in our dermatology department four years later. She had diffuse oedema and asteatotic eczema-like cutaneous lesions on pigmented skin that had developed for two months despite daily application of topical corticosteroids.