Commentary: Case Report: Giant atypical granular cell tumor of the median nerve - Takeaways - MDSpire

Analysis: Case Study of a Large Atypical Granular Cell Tumor Affecting the Median Nerve

  • By

  • Tomonori Kawasaki

  • Atsushi Enomoto

  • Masanori Wako

  • Naofumi Taniguchi

  • Jiro Ichikawa

  • July 21, 2026

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  • 1

    Granular cell tumors (GCTs) are neurogenic neoplasms that rarely occur in extremities or deep soft tissues.

  • 2

    MRI is essential for GCT diagnosis, showing variable signal intensities and contrast-enhancement patterns.

  • 3

    Histopathological features of GCTs include ill-defined borders and large cells with eosinophilic granular cytoplasm.

  • 4

    GCTs are classified into benign, atypical, and malignant based on histological criteria, though this classification has limitations.

  • 5

    The case report by Liu et al. supports a diagnosis of malignant GCT based on tumor size, Ki-67 index, and histological criteria.

Original Source(s)

Commentary: Case Report: Giant atypical granular cell tumor of the median nerve

  • by Tomonori Kawasaki, Atsushi Enomoto, Masanori Wako, Naofumi Taniguchi, Jiro Ichikawa

  • July 21, 2026

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