Related Experiment Video
Updated: Nov 5, 2025
Author Spotlight: Anterior HR-OCT as a Non-Invasive Tool for Characterizing Ocular Surface Squamous Neoplasia
Published on: August 9, 2024
Eccrine poroma presented as spindle-shaped plaque: A case report
Yuqian Wang1, Meng Liu, Yan Zheng
1Department of Dermatology, the Second Affiliated Hospital of Xi'an Jiaotong University, School of Medicine, Xi'an, China.
Rationale:
Eccrine 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 Concerns:
A 47-year-old man presented with a spindle-shaped plaque on his left sole for 6 years.
Diagnoses:
Based on the clinical and histopathological manifestations, diagnosis of eccrine poroma was established.
Interventions:
Surgical excision under local anesthesia was performed.
Outcomes:
No recurrence or malignant transformation occurred within 6-month follow-up.
Lessons:
Eccrine 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.
Related Concept Videos
01:30Skin Cancer
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
01:11Papillary Dermis
The dermis might be considered the "core" of the integumentary system, as distinct from the epidermis and hypodermis. It contains blood and lymph vessels, nerves, and other structures, such as hair follicles and sweat glands. The dermis is made of two layers of connective tissue that comprise an interconnected mesh of elastin and collagenous fibers, produced by fibroblasts.
Papillary Layer
The papillary layer is made of loose, areolar connective tissue, which means the collagen...