44 research outputs found

    ANNALS OF SAUDI MEDICINE

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    TURKIYE KLINIKLERI TIP BILIMLERI DERGISI

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    Hair samples taken from 12-year-old boy prediagnosed with Netherton's syndrome were evaluated by using light and electron microscopic methods. Hair samples were prepared according to routine electron microscopic procedures. Semi-thin sections were stained with methylene blue-azure II, thin sections were contrasted with uranyl acetate-lead citrate. Besides atopy symptoms, hyperparakeratosis and inflammatory cell infiltration were seen in dermis. Results were in accordance with icthyosis linearis circumflexa. In cortex portion of hair, nodulary thickening and swelling were observed. There was a punctured proximal portion like a telescope in distal hair shaft segment. Cells that make up hair cortex were seen to be loosely arranged and there was detachment between cells exterior of cuticle. In evaluating all results trichorrhexis invaginata was identified. Patients given long term therapy for atopic dermatitis, which have breaking of hair in addition to icthyosis, Netherton's syndrome should be thought and investigation of hair samples for supporting the diagnosis is important

    CLINICS IN DERMATOLOGY

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    The external ear is composed of the auricle (pinna) and the external auditory canal. Both of these structures contain elastic cartilage (except the earlobe) and a small amount of subcutaneous fat, which are covered by skin. The skin of the cartilaginous canal contains hair cells, sebaceous (lipid-producing) glands, and apocrine (ceruminous) glands; this is in contrast with the osseous canal, which contains neither glands nor hair follicles. The auricle is susceptible to environmental influences and trauma. Due to its exposed locale, the ear is particularly vulnerable to the effects of ultraviolet light and, consequently, to preneoplastic and neoplastic skin lesions. The ear also has a sound-receiving function and a location that is both visible and aesthetically obvious, thereby drawing considerable attention from the patient. Dermatologic diseases on the external ear are seen in a variety of medical disciplines. Dermatologists, otorhinolaryngologists, family practitioners, and general and plastic surgeons are regularly consulted about cutaneous lesions on the ear. These lesions can be grouped into three main categories: (1) infectious; (2) tumoral; and (3) noninfectious inflammatory. The purposes of this contribution are to review various dermatologic diseases of the external ear and to update current diagnosis and treatment information related to these conditions. (C) 2014 Elsevier Inc. All rights reserved
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