• Yuqian Wang, Meng Liu, Yan Zheng, and Yiguo Feng.
• Department of Dermatology, the Second Affiliated Hospital of Xi'an Jiaotong University, School of Medicine, Xi'an, China.
• Medicine (Baltimore). 2021 May 21; 100 (20): e25971e25971.

RationaleEccrine poroma, a benign cutaneous neoplasm originating from the intraepidermal portion of the eccrine sweat duct, is relatively common in clinical practice. Nevertheless, the 1 presenting as spindle-shaped plaque is extremely rare and easily misdiagnosed as seborrheic keratosis or other dermatoses. Thus, the current study demonstrates a case of eccrine poroma with unique clinical manifestation.Patients ConcernsA 47-year-old man presented with a spindle-shaped plaque on his left sole for 6 years.DiagnosesBased on the clinical and histopathological manifestations, diagnosis of eccrine poroma was established.InterventionsSurgical excision under local anesthesia was performed.OutcomesNo recurrence or malignant transformation occurred within 6-month follow-up.LessonsEccrine poroma typically presents as a dome-shaped nodule on palm or sole. But this case reminded us the lesion presenting as a spindle-shaped plaque on sole can not rule out the possibility of eccrine poroma.Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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