Abstract
Objectives: Malignant sweat gland tumor is a very rare skin cancer with variable presentations. The objectives of this study are to examine the clinicopathological and immunohistochemical features of malignant sweat gland tumors and to discuss the treatment and follow-up for postsurgical recurrence rates. Methods: Six patients diagnosed with sweat gland carcinoma at the National Hospital of Dermatology and Venereology between 2018 and 2023 were carefully reviewed. Results: The cases occurred in four men and two women, ranging in age from 31 to 78 years (mean 59.3). Four of the lesions were from the scalp, one from the nose, and one from the right arm. There were three cases of Eccrine Porocarcinoma, two cases of Hidradenocarcinoma, and one case of Syringoid Eccrine Carcinoma. All of them were treated with surgery, five cases with wide local excision, and one case with Mohs micrographic surgery. Only one case had a recurrence. Conclusion: Malignant sweat gland tumors demonstrate significant variability in clinicopathology and immunohistopathology. Surgery is the mainstay of treatment. Received 28 June 2023Revised 26 September 2023Accepted 29 November 2023
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