case_images: PMC11779535_01
case_images: Computed tomography (CT) images of the appendiceal hemorrhage.
  a
  CT scan without contrast showing no abnormalities.
  b
  Early arterial phase showing suspicious contrast agent leakage.
  c
  Late arterial phase showing contrast agent leakage.
case_images: 10-1055-a-2512-4208_25124916.jpg
case_images: PMC11779535_01_10-1055-a-2512-4208_25124916.jpg
case_images: FI_Ref187745643
case_images: A computed tomography (CT) scan showed no signs of appendicitis, but the enhanced CT scan revealed contrast agent leakage into the appendiceal lumen ( Fig. 1 a-c ).
case_images: Laparoscopic and postoperative images of the appendix.
  a
  Laparoscopic exploration shows the appendix with normal size and shape.
  b
  Serosal surface of the resected appendix specimen.
  c
  Appendix cut open and flattened, fixed on a specimen board, showing an ulcer.
  d
  Magnified view of the appendiceal ulcer.
case_images: 10-1055-a-2512-4208_25124917.jpg
case_images: PMC11779535_01_10-1055-a-2512-4208_25124917.jpg
case_images: FI_Ref187745648
case_images: Tokyo, Japan) was then inserted into the appendiceal lumen, revealing the formation of an ulcer with a blood clot at its center ( Video 1 ). The patient underwent a laparoscopic appendectomy ( Fig. 2 a-d ).