Eccrine hidradenoma

Synonym(s)

Clear cell hidradenoma; clear cell myoepithelioma; solid cystic hidradenoma

Definition

Skin tumor of sweat gland origin with distinctive histologic appearance

Pathogenesis

Unknown

Clinical manifestation

Solitary, dome-shaped papule or nodule, often attached to the overlying epidermis; associated epidermal thickening or ulceration; most common over scalp, face, and trunk

Differential diagnosis

Basal cell carcinoma; squamous cell carcinoma; dermatofibroma; epidermoid cyst

Therapy

Surgical excision* References

Hernandez-Perez E, Cestoni-Parducci R (1985) Nodular hidradenoma and hidradenocarcino-ma. Journal of the American Academy of Dermatology 12:15-20

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