Trichoadenoma =ورم غدي شعري TRICHOADENOMA Trichoadenoma (of Nikolowski) is a rare follicular tumor that some authors consider a neoplastic process, whereas other authors consider it a malformation. These lesions occur most commonly in adults. Clinically, trichoadenoma presents as solitary, slowly growing, grayish nodules measuring up to 1.5 cm in diameter. They are mainly situated […]
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Trichoepithelioma =ورم ظهاري شعري TRICHOEPITHELIOMA Etiology. Trichoepithelioma shows a spectrum of histopathologic features reflecting mainly differentiation toward hair and hair follicle, particularly follicular germs.This neoplasm is therefore best regarded as a distinct variant of trichoblastoma (described in the section Trichoblastoma). Clinical Findings. Three distinctive forms of trichoepitheliomas are recognized; namely, solitary, multiple, […]
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Trichoepithelioma Papulosum Multiplex = ورم ظهاري شعري حطاطي متعدد Trichoepithelioma Trichoepithelioma occurs either in multiple lesions or as a solitary lesion. The name trichoepithelioma is preferable to other designations, such as epithelioma adenoides cysticum and multiple benign cystic epithelioma, because it is more indicative that the differentiation of this tumor is toward hair structures. Multiple trichoepitheliomas are transmitted as an autosomal […]
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Tricholemmoma =ورم غمد الشعرة TRICHOLEMMOMA Tricholemmoma lesions usually present in adulthood. A tumor-suppressor gene (designated PTEN/MMAC1) has been demonstrated to play a causative role. Recently, some authors have proposed tricholemmoma to represent an old viral wart. Tricholemmoma (trichilemmoma) shows differentiation toward the outer root (trichilemmal) sheath of a normal hair follicle at the level […]
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Trichomycosis = داء الفطريات الشعرية TRICHOMYCOSIS AXILLARIS AND PUBIS Trichomycosis axillaris, a bacterial infection of the hair shaft (not fungal as the name implies), is characterized by what appears to be nodular thickenings on the hair shaft, composed of colonies of aerobic Corynebacterium. The condition occurs both in the axillae […]
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Trichorrhexis nodosa = تريش الشعر العقيدي RICHORRHEXIS INVAGINATA BAMBOO HAIR Bamboo hair is a distinctive hair shaft abnormality that may occur sporadically, either in normal hair or with other hair shaft abnormalities, or regularly as a marker for Netherton syndrome. The primary defect appears to be abnormal keratinization of the hair […]
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Trichotillamania = عرة نتف الاشعار Trichotillomania Trichotillomania (Greek, hair pulling madness) manifests as a compulsive desire or habit to pull out the hair. It occurs in 0.6 percent to 3.4 percent of adults. In young children, trichotillomania is usually a habit akin to thumb sucking, and most recover spontaneously. In teenagers and adults, though, […]
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Trigemminal trophic syndrome = متلازمة العصب المثلث التوائم الاغتذائية
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