Musculoskeletal CT Appearances

Schwannoma CT Findings

• Well-defined soft tissue masses
• Iso-attenuating with contrast
• May be round, oval, or lobulated
• Typically of low CT attenuation

Other Information About Schwannoma

Etiology:

• Unknown
• Associated with Neurofibromatosis Type 2 and schwannomatosis

Epidemiology:

• Rare
• Usually presents in adulthood

Presentation:

• Palpable mass
• Pain
• Numbness and/or tingling
• Muscle weakness
• Vestibular schwannoma may cause hearing loss, ringing in ears, and coordination issues

Prognosis:

• Schwannomas are usually benign
• The tumors can usually be removed completely with surgery