Surg Cosmet Dermatol. 2026;18(2):1-4
Nodular hidradenoma is a rare benign adnexal tumor originating from the sweat glands, which clinically presents as a tumor mimicking primary or metastatic malignant lesions. Dermoscopy, as well as clinical characteristics, reveals structural patterns that allow for broad differential diagnoses. Dermatological ultrasonography has become a scientifically recognized diagnostic tool to enable early and accurate diagnosis of hidradenoma, supporting surgical treatment and histopathological analysis. This study reports a rare case of nodular hidradenoma, highlighting the diagnostic innovation achieved through low-frequency ultrasonography, which includes clinical, radiological, and histopathological characteristics.
Keywords: Skin neoplasms; Ultrasonography; Diagnostic imaging; Clinical diagnosis
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