Figure 4.

Hematoxylin and eosin-stained high-power photomicrograph. Cross-section of resected intraneural ganglion cyst. P: perineurium; E: epineurium; B: blood vessel; M: mucin. F: fascicle. Stringy grey-blue-stained mucin is seen within the epineural layer consistent with an intraneural ganglion cyst.