Korean J Otolaryngol-Head Neck Surg.  2002 Dec;45(12):1199-1202.

A Case of Inflammatory Pseudotumor of the Temporal Bone with Extraocular Muscle Palsy

• Kim SW
• Lee JH
• Lee IR
• Jung MK

Abstract

Inflammatory pseudotumors are benign tumors rarely that occurs in the head and neck. We present the case of a 39-year-old man presenting extraocular muscle palsy with inflammatory pseudotumor affecting the temporal bone including mastoid, middle ear and petrosal apex. At computed tomography and magnetic resonance imaging (MRI) scan, the lesion appeared as an enhancing mass of soft tissue occupying the majority of the mastoid bone and petrosal apex causing diplopia. The patient was treated with conservative surgical excision (a open cavity mastoidectomy and tympanoplasty) and postoperative steroid therapy. Microscopic examination showed predominantly mature plasma cells. The patient remains free of disease 8 months after treatment. We believe this is the first case report of inflammatory pseudotumor affecting the middle ear and mastoid involving the petrous apex.

Keyword

Temporal bone; Abducens nerve injury; Plasma cells

MeSH Terms

Abducens Nerve Injury
Adult
Diplopia
Ear, Middle
Granuloma, Plasma Cell*
Head
Humans
Magnetic Resonance Imaging
Mastoid
Neck
Paralysis*
Plasma Cells
Temporal Bone*