Destructive lesion in petrous apex

May Be Caused by

Abscess of petrous apex

Cholesteatoma

Cholesterol granuloma

Chondrosarcoma of skull base

Chordoma

Gradenigo syndrome

Lymphoma

Malignant external otitis

Meningioma

Metastasis

Multiple myeloma

Nasopharyngeal carcinoma

Osteomyelitis of skull base

Paraganglioma

Plasmacytoma