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Recurrent Malignant Chondroid Syringoma of the FootA Case Report and Review of the Literature

 

作者: Michael Barnett,   Marc Wallack,   Alejandro Zuretti,   Lilia Mesia,   Richard Emery,   Anthony Berson,  

 

期刊: American Journal of Clinical Oncology: Cancer Clinical Trials  (OVID Available online 2000)
卷期: Volume 23, issue 3  

页码: 227-232

 

ISSN:0277-3732

 

年代: 2000

 

出版商: OVID

 

关键词: Malignant chondroid syringoma;Recurrent;Surgical excision;Radiation therapy;Patient education.

 

数据来源: OVID

 

摘要:

Malignant chondroid syringoma, or mixed tumor of the skin, salivary gland type, is an uncommon neoplasm believed to originate in sweat glands. This neoplasm occurs mostly in women and is typically seen in the extremities and torso. A case of recurrent malignant chondroid syringoma of the right foot in a man aged 34 years is described with a review of pertinent literature. The surgically excised neoplasm was evaluated by routine histology, immunohistochemistry, and transmission electron microscopy. The malignant chondroid syringoma showed microscopic dermal satellite tumor nodules. Immunohistochemical staining was positive for keratin and S100 and negative for actin and p53. Ki-67 showed <10% positive staining. Ultrastructurally, the neoplasm was composed of epithelial cells with tonofilaments, cell junctions, and electron-dense amorphous keratin-like substance in the intercellular spaces. No evidence of myoepithelial differentiation was noted. Given the tumoral size, acral location, and histologic findings, the neoplasm was classified as a malignant chondroid syringoma. After reviewing the literature, it became apparent that wide surgical excision, adjuvant radiation therapy as well as patient education are critical in facilitating long-term survival.

 



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