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Case Reports
. 2015 May-Jun;90(3 Suppl 1):94-6.
doi: 10.1590/abd1806-4841.20153972.

Proliferating pilomatricoma--Case report

Rogerio Nabor Kondo  1 , Rubens Pontello Junior  1 , Francine Milenkovich Belinetti  1 , Caroline Cilião  1 , Vanessa Regina Bulla Vasconcellos  1 , Dora Maria Grimaldi  1
Affiliations
Case Reports

Proliferating pilomatricoma--Case report

Rogerio Nabor Kondo et al. An Bras Dermatol. 2015 May-Jun.

Abstract

Proliferating pilomatricoma is proliferative, rare tumor variant of pilomatricoma. It is a benign neoplasm of hair matrix that can have potentially involve local recurrence. We report the case of a 60-year-old man who presented an asymptomatic nodule on the scalp. Histological exam demonstrated a basaloid epithelium at the periphery, filled with eosinophilic cornified material containing shadow cells. The tumor was excised and there was no evidence of recurrence one year later.

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Conflict of interest statement

Conflict of Interest: None.

Figures

FIGURE 1
FIGURE 1
Firm, red, nodular mass on the right temporal region of the scalp
FIGURE 2
FIGURE 2
Macroscopic examination: well-circumscribed, nodular, dull white, surrounded by slightly compressed fibrous tissues
FIGURE 3
FIGURE 3
Lesion lined by a basaloid epithelium at the periphery, filled with eosinophilic cornified material and shadow cells (HE 200x)
FIGURE 4
FIGURE 4
Lesion with area of basaloid cells with mitotic figures (HE 400x)
FIGURE 5
FIGURE 5
Detail of the cornified material and shadow cells with fibrotic stroma (HE 400x)
FIGURE 6
FIGURE 6
Patient showing no evidence of local recurrence one year after surgical treatment
See this image and copyright information in PMC

References

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