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Radiology Forum
October 2000

Imaging Quiz Case 3

Arch Otolaryngol Head Neck Surg. 2000;126(10):1271-1272. doi:

Schwannomas and neurofibromas constitute the neurogenic tumors of the larynx. They are rare neoplasms, and much of our knowledge about them has come from case reports and literature reviews. Nerve sheath tumors, as reviewed by Cummings et al,1 were first described in 1910 by Verocay, while Suchanek reported the first case of laryngeal neurofibroma in 1925.

Schwannomas arise from the neural sheaths of peripheral motor, sensory, and cranial nerves. They have a predilection for the head and neck; however, laryngeal schwannomas account for only a small proportion of all neural sheath tumors documented in the medical literature.2 The schwannoma is a solitary, benign, encapsulated, slow-growing tumor. However, rare malignant sarcomatous degeneration has been described. Neurofibromas can be solitary as well but are multiple in neurofibromatosis (von Recklinghausen disease).

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