نتایج جستجو برای: pilomatrixoma
تعداد نتایج: 514 فیلتر نتایج به سال:
Cytokeratin Analysis of Pilomatrixoma: Changes in Cytokeratin-Type Expression During Differentiation
ernous. A purely epidural hemangioma is a rare lesion, representing only 4% of epidural lesions, and the cavernous subtype is the most commonly found in this region. The lesion is located in the posterior region of the spine in up to 93% of cases and the dorsal spine is affected in 80% of cases. Epidural cavernous hemangioma is most commonly found in men (at a 2:1 ratio) aged over 40. Vertebral...
A pilomatricoma, also known as pilomatrixoma or calcifying epithelioma of Malherbe, is a benign skin tumor arising from the hair follicle matrix. This tumor is common in children and young adults, especially in the head and neck region. However, pilomatricomas are frequently misdiagnosed or not recognized. The history is typical of a slowly enlarging mass, irregularly contoured, it is fixed to ...
Pilomatricoma or calcifying epithelioma of Malherbe is a rare benign tumor of the skin and/or the subcutaneous tissue originating from the hair matrix. It is usually seen in children and adolescents, however a smaller second peak of onset is seen in the elderly. The head, neck, or upper extremities are the most common anatomical sites of pilomatricomas, being less frequently seen on the trunk a...
Benign eyelid tumours derived from hair follicles are rare and frequently misdiagnosed as basal-cell carcinoma when evaluation is based on clinical evidence alone. They include trichoepithelioma, trichofolliculoma, trichilemmoma, and pilomatrixoma. We reviewed 117 such tumours received in the Department of Pathology, Institute of Ophthalmology, London, in the last 30 years, a number which compa...
Introduction: Pilomatrixoma are benign skin neoplasms of hair follicle origin but often are misdiagnosed. They present as superficial masses of the head and neck especially in children. This present study is aimed at pointing to awareness among the clinicians as well as the pathologists about the varied presentations and morphological features of the entity. Case Series: Five cases were include...
Eyelid lesions are frequently seen in healthy infants. Common diagnoses include viral papilloma, chalazion, molluscum contagiosum, epithelial inclusion cyst, dermoid cyst, and capillary hemangioma. Less frequently recognized eyelid tumors consist of pilomatrixoma, apocrine hidrocystoma, pseudoepitheliomatous hyperplasia, neurofibroma, and choristoma. Characteristics of specific lesions, such as...
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