The document discusses signs and symptoms of various conditions affecting the digestive organs as seen on CT scans with contrast. It includes examples of closed abdominal trauma showing pneumoperitoneum and mesenteric edema or hematoma near injured small bowel segments. Other conditions mentioned visualized on CT include intra-abdominal infection, small bowel obstruction, small bowel adenocarcinoma, lymphoma of the jejunum or ileum, carcinoid tumors with intraluminal masses or calcification and metastasis, Crohn's disease, appendicitis, and foreign bodies.

1. Radiation semiotics of urgent
conditions in pathology of digestive
organs

2. • Semiotics is the study of meaning-making,
the study of sign process (semiosis) and
meaningful communication.

3. Closed abdominal trauma with injury to the distal ileum. CT of the abdomen
after the intravenous administration of iodinated contrast shows evidence of
small bubbles of pneumoperitoneum (white arrow), as well as densification of
mesenteric fat, representing edema and hematoma (yellow arrow) adjacent to
the lacerated segment of the small bowel.

4. Closed abdominal trauma with injury to the jejunum-ileum transition. CT of the
abdomen after the intravenous administration of iodinated contrast shows evidence
of a small bubble of pneumoperitoneum (white arrow), as well as densification of
mesenteric fat (yellow arrow) adjacent to the injured segment of the small bowel,
which has thickened walls

5. Closed abdominal trauma with injury to the ileal segment. CT of the abdomen
after the intravenous administration of iodinated contrast, with coronal
reformation, show evidence of a large hematoma in the mesenteric fat
adjacent to the injured segment of the small bowel, which has thickened walls
(white arrow).

7. INTRA ABDOMINAL INFECTION

8. CT OF SMALL BOWEL OBSTRUCTION

13. SMALL BOWEL ADENOCARCINOMA

14. SMALL BOWEL ADENOCARCINOMA

15. Lymphoma in the terminal ileum

16. Lymphoma in the proximal jejunum

17. CARCINOID
Small intraluminal mass in the ileum (yellow arrow). Associated
spiculated mesenteric mass with adjacent desmoplastic reaction in
small bowel carcinoid

18. Carcinoid with calcification and desmoplastic reaction. Obstructive small bowel ileus based on
intraluminal component of carcinoid. Note small liver metastasis (arrow)

19. CHORN’S DISEASE

20. APENDICITIS

21. FOREIGN BODY

25. THANK YOU