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Difference between revisions of "Dermal cylindroma"
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# | {{ Infobox diagnosis | ||
| Name = {{PAGENAME}} | |||
| Image = Dermal_cylindroma_intermed_mag_deep.jpg | |||
| Width = | |||
| Caption = Dermal cylindroma. [[H&E stain]]. | |||
| Synonyms = | |||
| Micro = nests of cells where the borders of the nests are opposed and undulate - composed of (1) basaloid cells with scant cytoplasm and dark nuclei that 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 glassy, eosinophilic, acellular material ~ 2x thickness of a basilar cell | |||
| Subtypes = | |||
| LMDDx = [[eccrine spiradenoma]], [[basal cell carcinoma]] | |||
| Stains = | |||
| IHC = | |||
| EM = | |||
| Molecular = | |||
| IF = | |||
| Gross = | |||
| Grossing = | |||
| Site = [[skin]] - typically scalp | |||
| Assdx = | |||
| Syndromes = familial cylindromatosis, Brook–Spiegler syndrome | |||
| Clinicalhx = | |||
| Signs = | |||
| Symptoms = | |||
| Prevalence = uncommon | |||
| Bloodwork = | |||
| Rads = | |||
| Endoscopy = | |||
| Prognosis = benign, rarely malignant | |||
| Other = | |||
| ClinDDx = | |||
| Tx = | |||
}} | |||
'''Dermal cylindroma''' is a skin lesion classically seen on the scalp. It is usually benign. | |||
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]] | |||