A 63-year-old man was admitted for the complaint of abdominal pain. He had been experiencing episodes of intense but diffuse abdominal pain, with each episode lasting for 5-10 minutes. The pain was not connected to any specific event or activity. The pain did not relieve upon defecation or postural changes. There was no relevant medical history.

An abdominal CT with intravenous contrast was performed (images provided). What could be the probable diagnosis? *This patient case is from the Docplexus Editorial Team for educative purposes only. The correct answer is posted in the comment section below!