Answer:

Explanation
1: intimal flap (Intimal flap is diagnostic sign of dissection)

2: mural thrombus (Mural thrombus is seen in a dissection if thrombus forms in the dissection and should raise a suspicion for dissection)

3: infiltration of fat around celiac artery (Infiltration of the fat surrounding the celiac axis may be seen in acute spontaneous celiac artery dissection. This finding may be predictive of the acuity of dissection and predisposition toward extension of dissection into adjacent vessels as suggested by D`Ambrosio et al.)

4:  all of the above (Diagnostic imaging findings on CT according to Kim et al include an intimal flap, which is pathognomonic or eccentric mural thrombus in the celiac lumen, which should raise suspicion for dissection (8). Because the intimal flap is not always visible, mural thrombus may be the only clue to the presence of dissection (4, 8). Infiltration of the fat surrounding the celiac axis may be seen in acute spontaneous celiac artery dissection. This finding may be predictive of the acuity of dissection and predisposition toward extension of dissection into adjacent vessels as suggested by D`Ambrosio et al)

5: none of the above (Intimal flap, mural thrombus and infiltration of fat around the celiac artery are some of the findings seen in dissection of the celiac artery.)