Hamartomatous Polyps

  • Etiology: hamartoma
  • Imaging: most polyps in small bowel, cause enteroenteric intussusception
  • Clinical: syndromes with hamartomatous polyps include Basal cell nevus syndrome (associated with medulloblastoma), Cowden syndrome, Cronkhite-Canada syndrome, Peutz-Jeghers syndrome

Cases of Hamartomatous Polyps

Small bowel follow through of Peutz-Jeghers syndrome
AP (left) and lateral (right) spot images from an upper GI show several round filling defects in the proximal jejunum, the most notable being in the left-most aspect of the AP image.