Molecular Testing Improves Nodular Fasciitis Diagnosis - Takeaways - MDSpire

Molecular Testing Improves Nodular Fasciitis Diagnosis

USP6 analysis helps resolve uncertainty in atypical soft-tissue lesions

  • By

  • Andrea Surnit

  • April 3, 2026

  • 3 min

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  • 1

    Molecular testing identified USP6 rearrangements in all 29 patients with nodular fasciitis, enhancing diagnostic accuracy.

  • 2

    66% of cases initially did not raise suspicion for nodular fasciitis and presented with alarming histologic features.

  • 3

    Fluorescence in situ hybridization detected USP6 rearrangements in 83% of tested cases, while next-generation sequencing resolved inconclusive results.

  • 4

    Atypical fusion partners were identified in three cases, with patients averaging 23 years old, younger than those with common fusions.

  • 5

    The study underscores the importance of molecular diagnostics in diagnosing soft-tissue lesions lacking classic nodular fasciitis features.

Original Source(s)

Molecular Testing Improves Nodular Fasciitis Diagnosis

  • by Andrea Surnit

  • April 3, 2026

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