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Difference between revisions of "Dermatologic neoplasms"
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→Eccrine poroma: +nodular hidradenoma
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(→Eccrine poroma: +nodular hidradenoma) |
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==Eccrine poroma== | ==Eccrine poroma== | ||
===General=== | ===General=== | ||
*Benign tumour arising from the distal sweat duct. | *Benign tumour arising from the distal sweat duct. | ||
| Line 633: | Line 631: | ||
DDx: | DDx: | ||
*[[Trichilemmoma]]. | *[[Trichilemmoma]]. | ||
*[[Nodular hidradenoma]]. | |||
Images: | Images: | ||
*[http://www.flickr.com/photos/40981620@N04/3808316834/in/photostream/ Eccrine poroma - low mag. (flickr.com)] | *[http://www.flickr.com/photos/40981620@N04/3808316834/in/photostream/ Eccrine poroma - low mag. (flickr.com)] | ||
*[http://www.flickr.com/photos/40981620@N04/3807502071/in/photostream Eccrine poroma - intermed. mag. (flickr.com)]. | *[http://www.flickr.com/photos/40981620@N04/3807502071/in/photostream Eccrine poroma - intermed. mag. (flickr.com)]. | ||
==Nodular hidradenoma== | |||
*[[AKA]] ''eccrine acrospiroma''.<ref name=pmid18319032>{{Cite journal | last1 = Punia | first1 = RP. | last2 = Garg | first2 = S. | last3 = Bal | first3 = A. | last4 = Mohan | first4 = H. | title = Pigmented nodular hidradenoma masquerading as nodular malignant melanoma. | journal = Dermatol Online J | volume = 14 | issue = 1 | pages = 15 | month = | year = 2008 | doi = | PMID = 18319032 |URL = http://dermatology.cdlib.org/141/case_presentations/hidradenoma/punia.html }}</ref> | |||
===General=== | |||
*Benign adnexal tumour.<ref name=pmid9537017>{{Cite journal | last1 = Stratigos | first1 = AJ. | last2 = Olbricht | first2 = S. | last3 = Kwan | first3 = TH. | last4 = Bowers | first4 = KE. | title = Nodular hidradenoma. A report of three cases and review of the literature. | journal = Dermatol Surg | volume = 24 | issue = 3 | pages = 387-91 | month = Mar | year = 1998 | doi = | PMID = 9537017 }}</ref> | |||
Typical locations:<ref name=pmid18319032/> | |||
*Scalp. | |||
*Face. | |||
*Trunk, anterior. | |||
===Microscopic=== | |||
Features:<ref name=pmid18319032/> | |||
*Well-circumscribed dermal lesions with: | |||
**Back-to-back nests with a whorled appearance. | |||
**Spaces between cells. | |||
**Nuclei ovoid and centrally placed in the cell. | |||
***No nucleolus. | |||
**Cystic spaces with degenerated cells. | |||
DDx: | |||
*[[Eccrine poroma]].<ref name=pmid18319032/> | |||
===IHC=== | |||
Features:<ref name=pmid18319032/> | |||
*CAM5.2 +ve. | |||
*AE1/AE3 +ve. | |||
*EMA +ve. | |||
*S100 -ve. | |||
*Desmin -ve. | |||
==Trichoblastoma== | ==Trichoblastoma== | ||