Nuchal Fibrocartilaginous Pseudotumor

Nuchal Fibrocartilaginous Pseudotumor

Cyril Fisher, MD, DSc, FRCPath

Hematoxylin & eosin shows chondroid metaplasia within dense fibrous tissue of nuchal ligament, shown here at its junction with deep fascia. (Courtesy J.X. O’Connell, MD.)

Hematoxylin & eosin shows nuchal fibrocartilaginous pseudotumor with area of cartilaginous metaplasia, which displays variable basophilic staining of chondroid stroma. This area is sparsely cellular.



  • Metaplastic (pseudoneoplastic) nodule of fibrocartilage originating within nuchal ligament


Environmental Exposure

  • Nuchal ligament subject during neck flexion to mechanical trauma from spinous processes

    • Sesamoid bone formation might result from fibrocartilaginous metaplasia

  • Most patients have history of whiplash or direct trauma, commonly motor vehicle crash

  • Rare examples are spontaneous



Jul 9, 2016 | Posted by in PATHOLOGY & LABORATORY MEDICINE | Comments Off on Nuchal Fibrocartilaginous Pseudotumor

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