Difference between revisions of "Dermal cylindroma"

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#redirect [[Dermatologic neoplasms#Dermal_cylindroma]]
'''Dermal cylindroma''' is a benign skin lesion classically seen on the scalp.
 
It should '''not''' be confused with ''cylindroma'' ([[adenoid cystic carcinoma]]).
 
==General==
*Benign skin lesion.
**Occasionally malignant.<ref name=pmid16882695/>
*May be related to ''[[eccrine spiradenoma]]''.<ref name=pmid6302142>{{Cite journal  | last1 = Gerber | first1 = JE. | last2 = Descalzi | first2 = ME. | title = Eccrine spiradenoma and dermal cylindroma. | journal = J Cutan Pathol | volume = 10 | issue = 1 | pages = 73-8 | month = Feb | year = 1983 | doi =  | PMID = 6302142 }}</ref><ref name=pmid8936072>{{Cite journal  | last1 = Lee | first1 = MW. | last2 = Kelly | first2 = JW. | title = Dermal cylindroma and eccrine spiradenoma. | journal = Australas J Dermatol | volume = 37 | issue = 1 | pages = 48-9 | month = Feb | year = 1996 | doi =  | PMID = 8936072 }}</ref>
 
May be familial:<ref name=pmid16882695/>
*Familial cylindromatosis (autosomal dominant).
*Brook–Spiegler syndrome.
 
==Gross==
*Classically scalp - usually head and neck or face.
 
==Microscopic==
Features:<ref name=pmid16882695/>
*Nests of cells that fit together like a jigsaw puzzle - the borders of the nests are opposed and undulate.
*#Basaloid cells with scant cytoplasm and dark nuclei palisade around the edge of the nests.
*#Larger cells with moderate eosinophilic cytoplasm and lighter staining nuclei are at the centre of the nests.
*Cells nests surrounded by a band of hyaline (i.e. glassy, eosinophilic, acellular) material ~ 2X thickness of a basilar cell - '''key feature'''.
**This is basement membrane.
DDx:
*[[Eccrine spiradenoma]].
*[[Basal cell carcinoma]] - has [[myxoid stroma]].
 
===Images===
<gallery>
Image:Dermal_cylindroma_intermed_mag.jpg | Dermal cylindroma. (WC/Nephron)
Image:Dermal_cylindroma_intermed_mag_deep.jpg | Dermal cylindroma - high mag. (WC/Nephron)
</gallery>
www:
*[http://jcp.bmj.com/content/60/2/145/F7.large.jpg Dermal cylindroma (bmj.com)].<ref name=pmid16882695>{{Cite journal  | last1 = Obaidat | first1 = NA. | last2 = Alsaad | first2 = KO. | last3 = Ghazarian | first3 = D. | title = Skin adnexal neoplasms--part 2: an approach to tumours of cutaneous sweat glands. | journal = J Clin Pathol | volume = 60 | issue = 2 | pages = 145-59 | month = Feb | year = 2007 | doi = 10.1136/jcp.2006.041608 | PMID = 16882695 | PMC = 1860616 | URL = http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1860616/?tool=pubmed }}</ref>
 
==Stains==
*PAS +ve (basement membrane).<ref name=pmid16882695/>
 
==See also==
*[[Dermatologic neoplasms]].
 
==References==
{{Reflist|2}}


[[Category:Diagnosis]]
[[Category:Diagnosis]]
[[Category:Dermatologic neoplasms]]

Revision as of 03:01, 22 December 2013

Dermal cylindroma is a benign skin lesion classically seen on the scalp.

It should not be confused with cylindroma (adenoid cystic carcinoma).

General

May be familial:[1]

  • Familial cylindromatosis (autosomal dominant).
  • Brook–Spiegler syndrome.

Gross

  • Classically scalp - usually head and neck or face.

Microscopic

Features:[1]

  • Nests of cells that fit together like a jigsaw puzzle - the borders of the nests are opposed and undulate.
    1. Basaloid cells with scant cytoplasm and dark nuclei palisade around the edge of the nests.
    2. Larger cells with moderate eosinophilic cytoplasm and lighter staining nuclei are at the centre of the nests.
  • Cells nests surrounded by a band of hyaline (i.e. glassy, eosinophilic, acellular) material ~ 2X thickness of a basilar cell - key feature.
    • This is basement membrane.

DDx:

Images

  • Dermal cylindroma. (WC/Nephron)

  • Dermal cylindroma - high mag. (WC/Nephron)

www:

Stains

  • PAS +ve (basement membrane).[1]

See also

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 Obaidat, NA.; Alsaad, KO.; Ghazarian, D. (Feb 2007). "Skin adnexal neoplasms--part 2: an approach to tumours of cutaneous sweat glands.". J Clin Pathol 60 (2): 145-59. doi:10.1136/jcp.2006.041608. PMC 1860616. PMID 16882695. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1860616/.
  2. ↑ Gerber, JE.; Descalzi, ME. (Feb 1983). "Eccrine spiradenoma and dermal cylindroma.". J Cutan Pathol 10 (1): 73-8. PMID 6302142.
  3. ↑ Lee, MW.; Kelly, JW. (Feb 1996). "Dermal cylindroma and eccrine spiradenoma.". Australas J Dermatol 37 (1): 48-9. PMID 8936072.
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