eccrine spiradenoma

ec·crine spi·rad·e·no·ma

a typically painful benign skin tumor composed of two cell types derived from the secretory part of eccrine sweat glands.
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Eccrine spiradenoma: clinical and pathologic study of 49 tumors.
Sonographic findings of an eccrine spiradenoma: case report and literature review.
Bhattacharjee, "FDG PET/CT in malignant eccrine spiradenoma," Clinical Nuclear Medicine, vol.
Other entities to be considered in the differential diagnosis include: inclusion cysts, giant cell tumor, foreign body reaction, eccrine spiradenoma, osteoma cutis, trichilemmal cyst, hydrocystoma, basal cell carcinoma, calcification in lymph node, fat necrosis, pyogenic granuloma, lymphadenopathy, fibroxanthoma, chalazion and keratoacanthoma.1
Carcinosarcoma arising in eccrine spiradenoma. A clinicopathologic and immunohistochemical study of two cases.
Besides, the adnexa of the skin also give rise to appendage tumours like eccrine spiradenoma and chondroid syringoma.
On the basis of pathologic findings, the differential diagnoses include eccrine adenocarcinoma not otherwise specified (NOS), porocarcinoma, apocrine carcinoma, malignant chondroid syringoma, and eccrine spiradenoma. The tumor in our patient would have been classified as an eccrine adenocarcinoma NOS if the benign eccrine acrospiroma component had not been present.
Eccrine spiradenoma is now known as a benign sweat gland tumor that commonly affects young adults.
Histochemistry of hidradenoma and eccrine spiradenoma. J Invest Dermatol 1967; 49(2): 173-180.
Other tumors with eccrine differentiation are malignant cylindroma, malignant eccrine poroma, malignant eccrine spiradenoma, malignant nodular hidradenoma and malignant chondroid syringoma.
MRI appearance of multiple eccrine spiradenoma. Br J Radiol 2007; 80:27-9.