Unusual Histopathological Findings of Intradermal Nevus: Retrospective Analysis of 2640 Cases

Year 2019, Volume: 46 Issue: 3, 575 - 581, 16.09.2019

Nilgün Söğütçü

https://doi.org/10.5798/dicletip.569680

Abstract

ABSTRACT

Background: intradermal nevi are benign tumors of the skin and may be accompanied by different histopathological findings.

Objective:The
aim of this study was to assess co-existing unusual histopathological findings
in specimens resected with a preliminary diagnosis of an intradermal nevus.

Design: Retrospective
study

Setting: Education
and research hospital

Subject and Methods:We
retrospectively examined demographic and histopathological data of 2640 cases
resected with a preliminary diagnosis of an intradermal nevus between January
2010 and April 2018.

Results:A
total of 1973 women and 667 men with an age range of 2.8 to 94 years were
enrolled. Among cases having a histopathological diagnosis of intradermal
nevus, 46 cases had unusual histopathological findings, which included 21 osseous
metaplasia, 8 epidermal cysts, 4 folliculitidis, 1 seborrheic keratosis, 1
verruca vulgaris, 1 cavernous hemangioma-intravascular papillary endothelial
hyperplasia, 1 trichofollicoma, 1 sebaceous hyperplasia, 1 pilonidal sinus, 1
granulomaous inflammation, 1 basal cell carcinoma, 4 foreign body reactions,
and 1 Demodex spp.

Conclusion:
Although unusual histopathological findings were observed in a minority of
cases with intradermal nevi, it was noted that problems with differential
diagnosis may arise in some cases. Intradermal nevi need to be carefully
examined for potential co-existing neoplastic lesions.

Keywords

Intradermal nevus, Osteonevus of nanta

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