Difference between revisions of "Eccrine spiradenoma"

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'''Eccrine spiradenoma''', also '''spiradenoma''',<ref>URL: [http://emedicine.medscape.com/article/1062079-overview http://emedicine.medscape.com/article/1062079-overview]. Accessed on: 9 May 2011.</ref> is a benign skin thingy.  There is case series of malignant ones.<ref name=pmid20851376>{{Cite journal  | last1 = Andreoli | first1 = MT. | last2 = Itani | first2 = KM. | title = Malignant eccrine spiradenoma: a meta-analysis of reported cases. | journal = Am J Surg | volume = 201 | issue = 5 | pages = 688-92 | month = May | year = 2011 | doi = 10.1016/j.amjsurg.2010.04.015 | PMID = 20851376 }}</ref>
'''Eccrine spiradenoma''', also '''spiradenoma''',<ref>URL: [http://emedicine.medscape.com/article/1062079-overview http://emedicine.medscape.com/article/1062079-overview]. Accessed on: 9 May 2011.</ref> is (usually) a benign, painful skin thingy.  There is case series of malignant ones.<ref name=pmid20851376>{{Cite journal  | last1 = Andreoli | first1 = MT. | last2 = Itani | first2 = KM. | title = Malignant eccrine spiradenoma: a meta-analysis of reported cases. | journal = Am J Surg | volume = 201 | issue = 5 | pages = 688-92 | month = May | year = 2011 | doi = 10.1016/j.amjsurg.2010.04.015 | PMID = 20851376 }}</ref>


==General==
==General==

Revision as of 03:58, 10 May 2011

Eccrine spiradenoma, also spiradenoma,[1] is (usually) a benign, painful skin thingy. There is case series of malignant ones.[2]

General

  • A painful skin lesion.
  • Benign.

Microscopic

Features:[3]

  • Dense nests of cells in the dermis; "dermal blue balls".
  • Apocrine differentiation, i.e. apocrine snouts.

DDx:

Images:

IHC

Features:[4]

  • S100 +ve.
  • Keratins 7, 8, and 18 +ve.

Notes:

  • IHC profile essentially identical to dermal cylindroma.[4]

See also

References

  1. URL: http://emedicine.medscape.com/article/1062079-overview. Accessed on: 9 May 2011.
  2. Andreoli, MT.; Itani, KM. (May 2011). "Malignant eccrine spiradenoma: a meta-analysis of reported cases.". Am J Surg 201 (5): 688-92. doi:10.1016/j.amjsurg.2010.04.015. PMID 20851376.
  3. 3.0 3.1 URL: http://www.dermatlas.com/derm/IndexDisplay.cfm?ImageID=-1193575448. Accessed on: 29 November 2010.
  4. 4.0 4.1 Meybehm, M.; Fischer, HP. (Apr 1997). "Spiradenoma and dermal cylindroma: comparative immunohistochemical analysis and histogenetic considerations.". Am J Dermatopathol 19 (2): 154-61. PMID 9129700.