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Subungual fibroma - Nail and Distal Digit
Other Resources UpToDate PubMed

Subungual fibroma - Nail and Distal Digit

Contributors: Bertrand Richert MD, Robert Baran MD
Other Resources UpToDate PubMed

Synopsis

Subungual fibroma is a painless, slow-growing tumor seen in the nail apparatus. They can be spherical or oval in shape and firm or elastic in consistency. Fibromas may become cherry shaped or polypoid and lift the nail in the distal subungual area. In addition to deformity of the nail, displacement of the pulp and erosion of the distal phalanx may be observed. When it occurs on the dorsal aspect of the proximal fold or on the nail bed, it is more often spherical than ovoid. Fibroma of the matrix results in nail dystrophy and can vary from a longitudinal canal, to bulging, to thinning of the nail plate.

Codes

ICD10CM:
D21.9 – Benign neoplasm of connective and other soft tissue, unspecified

SNOMEDCT:
39295002 – Subungual fibroma

Look For

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Diagnostic Pearls

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Differential Diagnosis & Pitfalls

  • Subungual exostosis
  • Subungual wart
  • Epidermoid cyst
  • Myxoid cyst
  • Secondary subungual calcification due to trauma or Psoriasis
  • Ingrown toenail
  • Amelanotic Melanoma
  • Osteochondroma
  • Enchondroma
  • Primary subungual calcification
  • Subungual myxoid pleomorphic fibroma

Best Tests

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Management Pearls

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Therapy

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References

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Last Updated:03/28/2017
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Subungual fibroma - Nail and Distal Digit
A medical illustration showing key findings of Subungual fibroma : Onycholysis - lifting nail, Solitary nail or digit, Subungual papule or tumor, Toenails
Clinical image of Subungual fibroma - imageId=1663452. Click to open in gallery.  caption: 'A pink nodule with overlying scant scale at the distal toe, causing lifting of the toenail.'
A pink nodule with overlying scant scale at the distal toe, causing lifting of the toenail.
Copyright © 2024 VisualDx®. All rights reserved.