Coexistent vestibular schwannoma and meningioma in a patient without neurofibromatosis: A case report and review of literature

Figure 1 Preoperative brain magnetic resonance imaging scan with intravenous gadolinium administration. A, C: An irregular abnormal signal is seen in the left saddle area with significant enhancement of the lesion and adjoining dura (white arrow); B: A well-defined 1.97 cm × 2.61 cm × 2.80 cm cystic lesion located at the left cerebellopontine angle, with enhancement of the lateral border and acoustic nerve (orange arrow).

Figure 2 Histological and immunohistochemical examination. A, B: The histological appearance of meningioma and schwannoma (hematoxylin-eosin staining, original magnification × 200; C: Schwannoma shows immunoreactivity for S-100.