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Case Reports
. 2022 Oct 27:30:111-113.
doi: 10.1016/j.jdcr.2022.10.013. eCollection 2022 Dec.

Atypical cellular neurothekeoma: A lamb in wolf's clothing

Affiliations
Case Reports

Atypical cellular neurothekeoma: A lamb in wolf's clothing

Leonard C Sperling et al. JAAD Case Rep. .
No abstract available

Keywords: ACN, atypical cellular neurothekeoma; CD10; CN, cellular neurothekeoma; HPF, high power field; NKI-C3 (CD63); cellular neurothekeoma; fibrohistiocytic; neurothekeoma.

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Conflict of interest statement

None disclosed.

Figures

Fig 1
Fig 1
A, The lesion was an 8 mm, nondescript pink nodule, seen here with a central, slit-like biopsy scar. B, A low-power image of the neoplasm, which fills the dermis and has a vaguely fascicular architecture (H + E, original magnification ×40).
Fig 2
Fig 2
A, The nested/fascicular growth pattern of the neoplasm (H + E, original magnification ×200). B, A higher power view showing marked nuclear pleomorphism and atypia (H + E, original magnification ×400).
Fig 3
Fig 3
A, Two atypical mitoses (H + E, original magnification ×400); B, CD63 (NKI-C3), highlighting the nested/fascicular pattern (original magnification ×400).
Fig 4
Fig 4
A, MITF, original magnification ×200. B, S100, original magnification ×200.

References

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