Schwannoma classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Shanshan Cen, M.D. [2]

Overview

Schwannoma may be classified according to pathology into 4 subtypes: conventional schwannoma, cellular schwannoma, plexiform schwannoma, and melanotic schwannoma.

Classification

Pathology Schwannoma may be classified into 4 subtypes:

• Conventional schwannoma
• Cellular schwannoma
• Plexiform schwannoma
• Melanotic schwannoma

Location

• cranial nerves:

• Acoustic neuroma (most common)
• Trigeminal schwannoma
• Facial nerve schwannoma
• Jugular foramen schwannoma
• Hypoglossal schwannomas

• Spinal schwannoma
• intercostal nerve schwannoma
• flexor surfaces of upper and lower limbs (specifically ulnar and peroneal nerves)
• posterior mediastinum schwannoma
• retroperitoneum schwannoma
• intracerebral schwannoma