Guest Post: Fibrous Bodies Nicely Demonstrated in a Smear from a Somatotroph Pituitary Adenoma

Christian Davidson, MDDr. Christian Davidson, director of neuropathology at theRobert Wood Johnson University Hospital in New Jersey, provides today ' s blog post:A 30-year-old man presented with bitemporal hemianopsia and a 3.0 cm pituitary mass was discovered upon MRI. His IGF-1 was elevated to 900, but he had no signs of acromegaly. A smear of tissue sent for frozen section evaluation (see above below) revealed that most cells had round, eosinophilic, perinuclear inclusions suggestive of fibrous bodies (some examples are circled). Dot-like CAM5.2 immunostain (not shown) confirmed my smear-based diagnostic suspicion.
Source: neuropathology blog - Category: Radiology Tags: neoplasms pituitary Source Type: blogs