Porokeratosis

	Porokeratosis;
File:Porokeratosis DSAP.JPG
	A porokeratosis lesion in a patient with disseminated superficial actinic porokeratosis.
DiseasesDB	31356
eMedicine	article/1059123
MeSH	D017499

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Porokeratosis is a specific disorder of keratinization that is characterized histologically by the presence of a cornoid lamella, a thin column of closely stacked, parakeratotic cells extending through the stratum corneum with a thin or absent granular layer.^[1]^:532

Types

Porokeratosis may be divided into the following clinical types:^[1]^:532

However, additional types have also been described:^[2]^:213,566

Porokeratosis plantaris discreta

Pathology

File:Porokeratosis - high mag.jpg

Micrograph of a case of porokeratosis showing a characteristic cornoid lamella (dark pink/red structure in the right/upper portion of the image). H&E stain.

Porokeratosis has a characteristic histomorphologic feature known as a cornoid lamella.

References

↑ ^1.0 ^1.1 Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). McGraw-Hill. ISBN 0-07-138076-0.
↑ James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. ISBN 0-7216-2921-0.

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[Fitz2-1] 1.0 ^1.1 Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). McGraw-Hill. ISBN 0-07-138076-0.

[Andrews-2] James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. ISBN 0-7216-2921-0.

[1]

[2]

Porokeratosis

Types

Pathology

See also

References

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File:Porokeratosis DSAP.JPG
Porokeratosis
A porokeratosis lesion in a patient with disseminated superficial actinic porokeratosis.
DiseasesDB	31356
eMedicine	article/1059123
MeSH	D017499