Skin, Poroma [LMP26785]

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Diagnostic Modality: 
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Disease Category: 
Neoplasia
Diagnosis: 
Poroma
Species: 
Human
Organ System: 
Skin
Gender: 
Male
Age: 
74 years
Diagnosis Code: 
ICD-10: D23 | ICD-O: 8409/0
Slide Contributor Information
Yoon, J., Ghazarian, D.

Keywords

poroma, eccrine

Clinical History

74-year old male with an elbow lesion.

Clinical Discussion

Poromas belong to the spectrum of acrospiromas, along with nodular hidradenomas, clear cell hidradenomas, dermal duct tumors, and hidroacanthoma simplex. They are comprised of epithelial cells that show tubular differentiation, with anastomosing cords of cells and ductal differentiation. Like many adnexal tumours, epidermal attachments are usually seen. Eccrine or apocrine features can be seen, which can vary depending on the location.

They are commonly located on the extremities. Complete, conservative excision is generally curative.