Skin, Porocarcinoma [LMP98085]

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Diagnostic Modality: 
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Disease Category: 
Neoplasia
Diagnosis: 
Porocarcinoma
Species: 
Human
Organ System: 
Skin
Gender: 
Female
Age: 
89 years
Diagnosis Code: 
ICD-10: C44.4 | ICD-O: 8409/3
Slide Contributor Information
Shao, T., Ghazarian, D.

Keywords

malignant eccrine poroma

Clinical History

Scalp lesion.

Clinical Discussion

Porocarcinoma is a rare tumor with approximately 200 cases reported. It usually occurs in elderly patients with a significant rate of metastasis (up to 50%). It is characterized by epidermal-based atypical adnexal tumor with anastomosing cords of tumor cells. Cells are usually basaloid. Mitotic figures are usually numerous and atypical.