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Case Reports
. 2018 Apr 30;4(5):446-448.
doi: 10.1016/j.jdcr.2017.12.006. eCollection 2018 Jun.

Pilomatricoma of the scalp mimicking poorly differentiated cutaneous carcinoma on positron emission tomography/computed tomography (PET/CT) scan and fine-needle aspiration (FNA) cytology

Daniel Bax  1 , Michael Bax  2 , Saraswati Pokharel  3   4 , Paul N Bogner  2   4
Affiliations
Case Reports

Pilomatricoma of the scalp mimicking poorly differentiated cutaneous carcinoma on positron emission tomography/computed tomography (PET/CT) scan and fine-needle aspiration (FNA) cytology

Daniel Bax et al. JAAD Case Rep. .
No abstract available

Keywords: FDG, fludeoxyglucose; FNA, fine-needle aspiration; FNAC, fine-needle aspiration cytology; PET/CT, positron emission tomography/computed tomography; calcifying epithelioma of Malherbe; ghost cells; pilomatricoma; pilomatrixoma.

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Figures

Fig 1
Fig 1
A and B, Fine-needle aspirate shows hypercellular sample composed of epithelial cells with scant cytoplasm, overlapping nuclei, high nuclear-to-cytoplasmic ratio, irregular nuclear membrane, inconspicuous nucleoli, and frequent apoptosis. (Pap stain.)
Fig 2
Fig 2
A and B, Histology findings of the resected lesion show abundant keratinous debris, ghost cells, and basaloid cells with high nuclear-to-cytoplasmic ratio and inconspicuous nucleoli. (Hematoxylin-eosin stain.)
See this image and copyright information in PMC

References

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    1. Hernandez-Nunez A., Najera Botello L., Romero Mate A. Retrospective study of pilomatricoma: 261 tumors in 239 patients. Actas Dermosifiliogr. 2014;105(7):699–705. - PubMed
    1. Jung Y.S., Kang J.G., Park W.S., Ryu J. Pilomatricoma: diagnostic pitfalls in PET/CT and fine-needle aspiration biopsy. Otolaryngol Head Neck Surg. 2007;137:845–846. - PubMed
    1. Singh S., Gupta R., Mandal A. Pilomatrixoma: a potential diagnostic pitfall in aspiration cytology. Cytopathology. 2007;18(4):260–262. - PubMed
    1. Sánchez C., Giménez A., Pastor F.A. Mimics of pilomatrixomas in fine-needle aspirates. Diagn Cytopathol. 1996;14:75–83. - PubMed

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