Hyperplasia of the regional lymph nodes in a Meckel's diverticulum with ulcerated aberrant gastric mucosa.
D005753:Gastric Mucosa; D006801:Humans; D006965:Hyperplasia; D008198:Lymph Nodes; D008467:Meckel Diverticulum; D010437:Peptic Ulcer
LYMPH NODES; PEPTIC ULCER