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eccrine tumors

Thursday 1 July 2004

Definition: cutaneous tumors of sweat gland differenciation.

Types

- sudoral component hamartomas

- poromas

  • hidroacanthoma simplex
  • classic eccrine poroma (trabecular eccrine poroma )
  • dermal duct tumor
  • poroid hidradenoma

- dermal syringoma
- dermal syringofibroadenoma
- eccrine spiradenoma
- dermal cylindroma
- eccrine hidradenoma (clear cell hidradenoma )
- dermal papillary eccrine adenoma (PEA)

Images

- papillary eccrine adenoma (PEA) / Papillary eccrine tumor (PET)

- spiradenoma

Diagnosis of eccrine tumors

- sharply circumscribed dermal nodule / " blue ball " appearance in dermis
> eccrine spiradenoma

- nests with two types of cells / biphasic appearance : peripheral dark cells and central light cells / small hyperchromatic cells at the periphery and larger and paler cells centrally
> eccrine spiradenoma

See also

- cutaneous tumors

  • cutaneous appendage tumors