Fig. 4From: Arteriovenous malformation in the pancreatic head initially mimicking a hypervascular mass treated with duodenum-preserving pancreatic head resection: a case reportPathological findings. a The whole resected specimen and partial section of the resected specimen had a dark red area, grossly 10 mm in diameter. b The dark red area was histologically determined to be a hematoma. Irregular running of arteries (a) and veins (v) concomitant with marked dilation were observed throughout the pancreatic head. (hematoxylin and eosin (HE), 1 × 40; 3 × 100, Elastic-van Gieson (VG), 2 × 40; 4 × 100)Back to article page