Sunday, April 17, 2016

is a keratotic follicular eruption-DrSudeepKC

This disorder primarily involves the skin and eyes. Phrynoderma, the name applied to the cutaneous eruption of vitamin A deficiency, is a keratotic follicular eruption that initially appears on the proximal extremities. 
Phrynoderma (follicular hyperkeratosis)


It eventually extends to the trunk, back, abdomen, buttocks, and neck. Although phrynoderma is widely accepted as being specific for vitamin A deficiency, it has recently been suggested that it may be a manifestation of severe malnutrition associated with deficiencies of multiple critical vitamins and essential fatty acids. 

Facial lesions may resemble large comedones of acne. Eye symptoms include nyctalopia (delayed dark adaptation, the earliest finding), night blindness, and xerophthalmia.

Objective findings are Bitot’s spots, which are areas of shed corneal epithelium, and in severe disease, keratomalacia. Vitamin A deficiency is most commonly caused by malabsorption disorders.

Phrynoderma is a type of follicular hyperkeratosis located on the extensor surfaces of the extremities whose main cause is vitamin A deficiency. The simultaneous occurrence of phrynoderma and ocular symptoms secondary to hypovitaminosis A after bariatric surgery is exceptional.

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