Imaging characteristics of orbital peripheral nerve sheath tumors: Analysis of 34 cases

Figure 1 Case 1, 71-year-old male, right orbital schwannoma. A: On plain computed tomography (CT) scan, oval soft tissue nodule with smooth edge can be seen in the right orbit (indicated by the arrow), the size is about 25 mm × 16 mm × 15 mm, and the CT value is approximately 42 Hu; B-E: Magnetic resonance imaging showed that the focus was located in the extrapyramidal space of the muscle below the right orbit (indicated by the arrow), having slightly long T1, T2 signals, and the enhanced scan displayed uneven persistence moderate or obvious enhancement; F: Spindle cell can be seen microscopically.