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Case Reports
. 2023 Jul 17;16(7):e255461.
doi: 10.1136/bcr-2023-255461.

Subepidermal calcified nodule (nodular calcinosis of Winer)

Sanjiv Choudhary  1 , Ankita Srivastava  2 , Rajesh Pattebahadur  3 , Rijavi Choudhary  4
Affiliations
Case Reports

Subepidermal calcified nodule (nodular calcinosis of Winer)

Sanjiv Choudhary et al. BMJ Case Rep. .

Abstract

Subepidermal calcified nodule (SCN) is a clinical form of idiopathic calcinosis cutis, which commonly affects children, and presents as yellowish-white lesions involving the face. It is often misdiagnosed for other disorders like warts and molluscum contagiosum and treated by ablative procedures. In such a scenario, lack of histopathological examination makes it difficult to reach the correct diagnosis. We here report a case of SCN which was diagnosed after an excisional biopsy. Further, histopathological finding of dermal calcium deposits must prompt the clinician to rule out other disorders leading to calcinosis cutis, before labelling the case as SCN.

Keywords: Dermatology; General practice / family medicine; Pathology.

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Conflict of interest statement

Competing interests: None declared.

Figures

Figure 1
Figure 1
A single, asymptomatic, whitish lesion over the right eyebrow (red arrow).
Figure 2
Figure 2
Histopathological examination showing dense deposits of dark blue basophilic material in the dermis (H&E, 4×).
Figure 3
Figure 3
(A) Dense basophilic deposits in the dermis (H&E, 10×). (B) Von Kossa stain demonstrating black-coloured calcium deposits in the dermis (10×).
See this image and copyright information in PMC

References

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