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  • Title: Intraneural Nodular Fasciitis of the Dorsal Scapular Nerve: Case Report and Review of the Literature.
    Author: Domazet I, Njiric N, Jakovcevic A, Bitunjac A, Domazet K, Pašalić I, Mrak G.
    Journal: J Neurol Surg A Cent Eur Neurosurg; 2023 Jul; 84(4):404-407. PubMed ID: 34897609.
    Abstract:
    BACKGROUND:  Nodular fasciitis is a benign neoplasm occurring predominantly in the subcutaneous tissue. There have been nine intraneural occurrences described in the literature. CASE REPORT:  A 37-year-old woman presented with numbness and tenderness in her left shoulder and scapula and a slightly dropped left shoulder, without history of trauma. A magnetic resonance imaging (MRI) of the cervical spine showed a well-circumscribed oval mass deep to the levator scapula muscle. Due to persisting symptoms and an unknown nature of the process, surgical excision was performed, and histopathologic analysis confirmed diagnosis of a benign fibroblastic/myofibroblastic neoplasm, nodular fasciitis. The postoperative course was uneventful and the patient was without symptoms at 4 months of follow-up. METHODS:  We reviewed the available literature (PubMed, Google Scholar), with nine published cases of intraneural nodular fasciitis. The reported clinical, radiologic, and histopathologic parameters were evaluated and compared. DISCUSSION:  Most of the cases reported in the literature were symptomatic, with tenderness and palpability being the main symptoms. Six of the reported cases occurred in the forearm, whereas three were in the leg. To the best of our knowledge, ours is the first reported case of nodular fasciitis occurring in the trunk. Ours is the only case to display desmin positivity, which supports the reactive hypothesis of nodular fasciitis. CONCLUSION:  Intraneural nodular fasciitis is an extremely rare diagnosis. Due to its benign natural course, a multidisciplinary approach with this extremely rare diagnosis in mind is needed to avoid overtreatment.
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