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279 Possible Causes for Follicular Hyperkeratosis

  • Congenital Muscular Dystrophy

    Joint hyperlaxity and skin changes (follicular hyperkeratosis and muscle biopsy scar thinning) were unique to COL6A.[] UCMD patients usually have dry soft skin and follicular hyperkeratosis over the extensor surfaces of the extremities.[] Other characteristic findings include protrusion of the calcanei, follicular hyperkeratosis, and a predisposition to hypertrophie (keloid) scars.19,20 Serum creatine kinase[]

  • Pityriasis Rubra Pilaris

    Abstract Pityriasis rubra pilaris (PRP) is a chronic papulosquamous eruption of the skin characterized by follicular hyperkeratosis, salmon pink scaly plaques with islands[] All patients promptly showed a decrease in erythema, follicular hyperkeratosis and scaling.[] Cutis . 2012 November;90(5):244-247 Pityriasis rubra pilaris (PRP) is a chronic papulosquamous eruption of the skin characterized by follicular hyperkeratosis, salmon pink[]

  • Vitamin A Deficiency

    Abstract Phrynoderma is a rare form of follicular hyperkeratosis associated with deficiencies in vitamins A or C or essential fatty acids.[] Abstract Phrynoderma is a distinctive form of follicular hyperkeratosis associated with nutritional deficiency.[] Malnutrition leads to follicular hyperkeratosis or phrynoderma, manifested by the presence of skin lesions and hyperkeratotic papules.[]

  • Pachyonychia Congenita

    Trouble nursing as an infant and follicular hyperkeratosis also occurred in the American patient, however they did not have asymmetric distribution and the oral leukokeratosis[] Abstract Pachyonychia congenita is characterized by symmetrical nail dystrophy, palmoplantar keratoderma, oral leukokeratosis, and follicular hyperkeratosis.[] […] outer root sheath keratinocytes, and moderate parakeratotic and orthokeratotic follicular hyperkeratosis.[]

  • Monilethrix

    Alopecia, associated with follicular hyperkeratosis and perifollicular erythema, can involve only the occiput and the nape of the neck or, in severe forms, the entire scalp[] hyperkeratosis.[] Monilethrix, a rare autosomal dominant disease characterized by hair fragility and follicular hyperkeratosis, is caused by mutations in three type II hair cortex keratins.[]

  • Keratosis Pilaris

    Keratosis pilaris (KP) is a common inherited disorder of follicular hyperkeratosis It is characterized by small, folliculocentric keratotic papules that may have surrounding[] Histologic examination showed follicular and interfollicular hyperkeratosis, follicular plugging, mild inflammation, and focal scarring.[] This kindred has features of both keratosis follicularis spinulosa decalvans and ichthyosis follicularis, and the disorder seems to fit into the group of follicular hyperkeratosis[]

  • Jadassohn-Lewandowsky Syndrome

    It is not often associated with the additional features of oral leukokeratosis, cysts, follicular hyperkeratosis, and natal teeth.[] , leukokeratosis of the tongue and mucous membranes and follicular hyperkeratosis.[] Using an effectiveness scale of 1 to 5, the patients were asked to grade treatments for different manifestations, including keratoderma, cysts, follicular hyperkeratosis,[]

  • Hereditary Mucoepithelial Dysplasia

    HMD should be considered in the differential diagnosis of childhood alopecia, follicular hyperkeratosis, keratoconjunctivitis, juvenile cataracts, gingival hyperemia, restrictive[] Examination by the dermatology team revealed follicular hyperkeratosis of the scalp and keratosis pilaris of the arms, legs, and face, but no frank ichthyosis (Figs. 1 and[]

  • Acne Vulgaris

    Etiology Genetic predisposition Hormonal factors Sebum production In women: menstrual cycle Follicular hyperkeratosis Bacterial colonization ; with Cutibacterium acnes (formerly[] It reduces follicular hyperkeratosis by stimulating the turnover of epithelial cells.[] It has several key pathophysiological features such as follicular hyperkeratosis, elevated Propionibacterium acnes proliferation, and reactive inflammation, all of which should[]

  • Frontal Fibrosing Alopecia

    Histopathologically, perifollicular lymphocytic infiltrate and follicular hyperkeratosis are observed at the edge of the affected area, while the rest of the lesion appears[] Follicular hyperkeratosis and erythema were present in 66%, and only 25% of the men reported pruritus.[] […] pale with loss of the follicular ostia.[]

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