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Fibro-osseous pseudotumor of the hand: a case report of a 22-year-old young woman

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Abstract

We present a case of a 22-year-old patient with an important expansive neoformation of the soft tissues near the proximal phalanx of the fourth finger of the right hand. There was no evidence of past direct traumas, wounds, or local infections. The Rx, CT scan and MRI exams showed a lesion of the soft tissues measured around 3 × 2 × 2.8 cm, without hinting at a connection with the bone structure with a hypointense signal in T1 and an isointense signal in T2. First diagnostic speculations pointed at a giant cell tumor of the tendon sheath (GCTTS). Since there seemed to be no indication of a malignant tumor, it was decided to execute an excisional biopsy on the patient, rather than an eco-guided core needle. The imaging studies of the histological characteristics showed spindle-shaped elements with low-grade atypia, fibromyxoid and osseous stroma in different maturity stages, and always delimited by osteoblast cells. Osteoclastic giant cells were also found, as well as foci of osseous metaplasia peripherally aligned around proliferating cell aggregates. Considering all the following data, the final diagnosis clearly indicated a fibro-osseous pseudotumor of digits (FOPD). At the last checkup after 6 months, the wound healed correctly and without any restriction in finger movement.

Level of evidence: Level V, diagnostic study.

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Acknowledgements

We thanks Giulia Zoggia for the English correction of the article.

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Authors and Affiliations

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Contributions

Dr. Tuzzato Gianmarco, Dr. Tosi Daniele, and Dr. Vita Fabio researched literature and conceived the study. Dr. Tuzzato Gianmarco wrote the first draft of the manuscript. Dr. Giuseppe Bianchi and Dr. Roberto Adani reviewed and edited the manuscript and approved the final version of the manuscript.

Corresponding author

Correspondence to Fabio Vita.

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Ethical approval

All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki. Declaration of 1975, as revised in 2008. Statement of human rights approval was obtained from the institutional review board regarding procedures to ensure protection of human rights and informed consent.

Informed consent

Written informed consent was obtained from the patient included in this study.

Conflict of interest

Tuzzato Gianmarco, Vita Fabio, Bianchi Giuseppe, Daniele Tosi, and Adani Roberto declare no competing interests.

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Patient signed informed consent regarding publishing her data and photographs.

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Tuzzato, G., Vita, F., Bianchi, G. et al. Fibro-osseous pseudotumor of the hand: a case report of a 22-year-old young woman. Eur J Plast Surg 45, 203–207 (2022). https://doi.org/10.1007/s00238-021-01822-4

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  • DOI: https://doi.org/10.1007/s00238-021-01822-4

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