Pilar cyst = كيسة الشعر Pilar Cyst Pilar or trichilemmal cysts are clinically indistinguishable from epidermal cysts but differ from them in frequency and distribution. They are less common than epidermal cysts, constituting only about 25% of the combined material; about 90% occur on the scalp . Pilar cysts often show an autosomal dominant inheritance […]
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Pilar sheath acanthoma = شوكوم غمد الشعرة PILAR SHEATH ACANTHOMA Middle-aged and elderly individuals are commonly affected. Pilar sheath acanthoma is characterized by a small (5 to 10 mm in diameter), solitary, skin-colored papule situated on the head and neck, particularly around the upper lip. A central, occasionally keratin plugged pore is often […]
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Pilomatrix carcinoma = كارسينوما رحم الشعرة PILOMATRICAL CARCINOMA Pilomatrical carcinoma (matrical carcinoma) is a rare tumor found on the head and neck of older adults. Clinical appearances are generally not distinctive. Most cases probably develop de novo, but malignant transformation from a benign pilomatricoma has been reported. Histopathologic examination shows irregularly sized and variously […]
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Pilomatricoma =ورم ام الشعرة PILOMATRICOMA Epidemiology. Pilomatricoma most commonly occurs in children and young persons.Some tumors arise in older adults. Mutation of the β-catenin gene, a mediator in the Wnt signal transduction pathway, is common in pilomatricomas. Etiology. Pilomatricoma (calcifying epithelioma of Malherbe) is a relatively common appendage tumor that predominantly shows differentiation toward the […]
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Pilomatricoma–perforating pilomatricoma = ورم أم الشعرة الثاقب
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Pitted keratolysis = انحلال الطبقة القرنية المنقر
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Pityriasis lichenoides chronica = النخالية الحزازانية المزمنة PITYRIASIS LICHENOIDES Epidemiology Pityriasis lichenoides affects all racial and ethnic groups in all geographic regions. It is more common in children and young adults but can affect all ages. PLC is three to six times more common than PLEVA. Etiology and Pathogenesis The etiology of […]
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Pityriasis rubra pilaris= النخالية الحمراء الجرابية
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