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. 2012:2012:158158.
doi: 10.1155/2012/158158. Epub 2012 Dec 4.

Keratoacanthoma centrifugum marginatum with atypical scar

Falguni Nag  1 , Projna Biswas, Joydeep Singha, Arghyaprasun Ghosh, Trupti V Surana
Affiliations

Keratoacanthoma centrifugum marginatum with atypical scar

Falguni Nag et al. Case Rep Dermatol Med. 2012.

Abstract

Keratoacanthoma centrifugum marginatum (KCM) is a rare variant of keratoacanthoma (KA). It is characterized by a progressive peripheral expansion and central healing leaving atrophic scar. It is sometimes confused with squamous cell carcinoma (SCC) both clinically and histopathologically. We here report a case of KCM over the extensor aspect of the right forearm in a 57-year-old man with an abnormal looking scar.

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Figures

Figure 1
Figure 1
A plaque with nodular ulcerated margin and central scaring.
Figure 2
Figure 2
Photomicrograph showing invagination of epidermis and keratin filled crater at the centre [10x H&E].
Figure 3
Figure 3
Photomicrograph showing dense mixed inflammatory cell infiltrate in the dermis immediately adjacent to the crater [100x H&E].
See this image and copyright information in PMC

References

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