Ann Dermatol.  2009 Nov;21(4):402-405. 10.5021/ad.2009.21.4.402.

Cutaneous Plexiform Schwannomas in a Patient with Neurofibromatosis Type 2

• Ko JY
• Kim JE
• Kim YH
• Ro YS

• KMID: 2156506
• DOI: http://doi.org/10.5021/ad.2009.21.4.402

Abstract

Plexiform schwannoma is a rare benign neoplasm of the neural sheath characterized by a multinodular plexiform growth pattern. The tumor usually occurs as an isolated finding, although rare cases have been reported in association with neurofibromatosis type 2 (NF2). A 25-year-old man was admitted for foot drop. He had an asymptomatic skin-colored nodule on his neck that had been present for 10 years. His medical history included local excision of a plexiform schwannoma on his left leg in our dermatology clinic 6 years prior. A histopathological examination of the skin-colored nodule also showed the typical microscopic features of a plexiform schwannoma, including the characteristic Antoni type A areas showing frequent nuclear palisading and Verocay bodies. Magnetic resonance imaging revealed a meningioma and a vestibular schwannoma in the cranium and multiple neurofibromas on the spinal cord. Herein we report a rare case of cutaneous plexiform schwannomas in a patient with NF2.

Keyword

Neurofibromatosis type 2; Plexiform; Schwannoma

MeSH Terms

Adult
Dermatology
Foot
Humans
Leg
Magnetic Resonance Imaging
Meningioma
Neck
Neurilemmoma
Neurofibromatoses
Neurofibromatosis 2
Neuroma, Acoustic
Skull
Spinal Cord