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Case Reports
. 2023 Sep 21;3(6):e284.
doi: 10.1002/ski2.284. eCollection 2023 Dec.

Anetodermic pilomatrixomas: A case series

Evangelia Vetsiou  1 , Julia Gass  1 , Andre Khoo  1 , Sarah McDonald  2 , Niki Stefanos  2 , Ed Rytina  2 , Nigel Burrows  1
Affiliations
Case Reports

Anetodermic pilomatrixomas: A case series

Evangelia Vetsiou et al. Skin Health Dis. .

Abstract

Pilomatrixoma is a benign hair follicle tumour. Anetodermic changes overlying pilomatrixoma are rare. The aim of this study is to evaluate a case series of patients with a clinical diagnosis of anetodermic pilomatrixoma presenting to our Dermatology Department over a 5-year period. Eight cases were identified. The median age of onset was 21 years. All cases presented on the upper limbs and trunk with a solitary rapidly evolving tumour, tender on palpation. They had an erythematous protuberant appearance with a wrinkled and atrophic surface. Underlying pilomatrixomas were firm measuring 1-5 cm. Simple excision was carried out in seven cases without postoperative complications. In conclusion, anetodermic pilomatrixoma is a rare variant of this tumour, occurring more frequently on the upper body. It presents with identifiable features and should be differentiated from other skin tumours. Surgical removal is usually the gold standard treatment.

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Conflict of interest statement

None to declare.

Figures

FIGURE 1
FIGURE 1
Case 1 showing pink wrinkled balloon like atrophic skin overlying a subcutaneous mass.
FIGURE 2
FIGURE 2
Case 4. Dermoscopy view showing central white structureless area corresponding to firm nodule of pilomatrixoma overlying white streaks on a red background.
FIGURE 3
FIGURE 3
Case 5. At this magnification (40×) an elastic van Gieson stain demonstrates loss of collagen and elastin in the dermis overlying the tumour.
See this image and copyright information in PMC

References

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