Dermal Cylindroma

Classification	ICD-O: M8200/3; MeSH: D003528;
External resources	eMedicine: derm/94;

Dermal cylindroma
Dermal cylindroma
	Micrograph of a dermal cylindroma. H&E stain.

In dermatologic pathology, a dermal cylindroma, also dermal eccrine cylindroma or cutaneous cylindroma^[1]^: 666) and (less specifically) cylindroma, is a benign adnexal tumor^[2] that occurs on the scalp and forehead.

Multiple cylindromas may grow together in a "hat-like" configuration, sometimes referred to as a turban tumor.^[3] Cylindromas are uncommon dysplasias of skin appendages.^[4]

Dermal cylindromas are:

Dermal lesions consisting of nests of cells that are surrounded by hyaline (i.e., glassy, eosinophilic, acellular) material and have:
- Hyperchromatic nuclei that may palisade (columnar nuclei arranged around the periphery of the cell nests with their short axis tangential to the nest periphery), and
- Cells with lighter staining ovoid nuclei at their centre.

They lack of a significant number of lymphocytes; this differentiates them from spiradenomas.

Micrograph of dermal cylindroma in H&E stain.
Dermal cylindroma. Puzzle-like distribution of tumour foci.
Dermal cylindroma. Hyaline droplets visible in lobules.
Dermal cylindroma, micronodular type.

References[edit | edit source]

↑ James, William D.; Berger, Timothy G.; et al. (2006). Andrews' Diseases of the Skin: clinical Dermatology. Saunders Elsevier. ISBN 0-7216-2921-0.
↑ "Cylindroma" at Dorland's Medical Dictionary
↑ "Cylindroma: Background, Pathophysiology, Epidemiology". 14 July 2021. Archived from the original on 8 October 2017. Retrieved 21 July 2022. {{cite journal}}: Cite journal requires |journal= (help)
↑ Cylindroma at eMedicine

External links[edit | edit source]

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[Andrews-1] James, William D.; Berger, Timothy G.; et al. (2006). Andrews' Diseases of the Skin: clinical Dermatology. Saunders Elsevier. ISBN 0-7216-2921-0.

[2] "Cylindroma" at Dorland's Medical Dictionary

[3] "Cylindroma: Background, Pathophysiology, Epidemiology". 14 July 2021. Archived from the original on 8 October 2017. Retrieved 21 July 2022. {{cite journal}}: Cite journal requires |journal= (help)

[4] Cylindroma at eMedicine

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Classification	ICD-O: M8200/3 MeSH: D003528
External resources	eMedicine: derm/94

Dermal Cylindroma

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