Hyperkeratosis: Difference between revisions
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File:Histopathology of a large squamous cell papilloma.jpg|Papillomatous '''protrusions''', indicating mainly '''[[squamous papilloma]]'''.<ref>{{cite web|url=http://www.pathologyoutlines.com/topic/oralcavitysquamouspapilloma.html|title=Oral cavity - Other benign tumors / conditions - Squamous papilloma|author=Nat Pernick|website=pathology Outlines}} Topic Completed: 1 November 2013. Revised: 1 February 2019</ref> | File:Histopathology of a large squamous cell papilloma.jpg|Papillomatous '''protrusions''', indicating mainly '''[[squamous papilloma]]'''.<ref>{{cite web|url=http://www.pathologyoutlines.com/topic/oralcavitysquamouspapilloma.html|title=Oral cavity - Other benign tumors / conditions - Squamous papilloma|author=Nat Pernick|website=pathology Outlines}} Topic Completed: 1 November 2013. Revised: 1 February 2019</ref> | ||
File:Micrograph of actinic keratosis - low magnification.jpg|'''Parakeratosis''' indicating mainly '''[[actinic keratosis]]''' (pictured), or if dysplasia covers all epidermal layers on skin: '''[[Squamous-cell carcinoma of the skin]]''' | File:Micrograph of actinic keratosis - low magnification.jpg|'''[[Parakeratosis]]''' indicating mainly '''[[actinic keratosis]]''' (pictured), or if dysplasia covers all epidermal layers on skin: '''[[Squamous-cell carcinoma of the skin]]''' | ||
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Latest revision as of 14:27, 23 November 2020
Author:
Mikael Häggström [note 1]
In cases where hyperkeratosis is the main finding, look for the following:
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Cornified cysts, indicating mainly seborrheic keratosis[1]
![Cornified cysts, indicating mainly seborrheic keratosis[1]](/index.php?title=Special:Upload&wpDestFile=Histopathology_of_seborrheic_keratosis,_low_magnification.jpg){kind=link}
Dysplasia and/or atypia
If suspected, also look for:
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Papillomatous protrusions, indicating mainly squamous papilloma.[2]
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Parakeratosis indicating mainly actinic keratosis (pictured), or if dysplasia covers all epidermal layers on skin: Squamous-cell carcinoma of the skin
![Papillomatous protrusions, indicating mainly squamous papilloma.[2]](/index.php?title=Special:Upload&wpDestFile=Histopathology_of_a_large_squamous_cell_papilloma.jpg){kind=link}
Notes
- ↑ For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Patholines:Authorship for details.
Main page
References
- ↑ Weidner, Noel (2009). Modern surgical pathology . Philadelphia, PA: Saunders/Elsevier. ISBN 978-1-4160-3966-2. OCLC 460883320.
- ↑ Nat Pernick. Oral cavity - Other benign tumors / conditions - Squamous papilloma. pathology Outlines. Topic Completed: 1 November 2013. Revised: 1 February 2019
Image sources