An 18-year-old woman presented to a clinic with complaints of severe abdominal pain and vomiting. She reported that the pain gradually increased and was unable to walk unaided. She had similar episodes over the last 2–3 years; however, these episodes had settled down eventually. Furthermore, her cousin suffers from similar intermittent episodes of abdominal pain. She had a recent history of travel from a foreign country.

Physical examination Febrile (38.1°C) and pale Abdomen - diffusely tender Showed signs of guarding and rebound tenderness Appendicectomy scar in the right iliac fossa Other systemic examination: Unremarkable Source: 100 Cases in Acute Medicine *This patient case is from Docplexus editorial team for educative purpose only. Stay tuned; the answer will be posted soon! What is the likely underlying diagnosis of the condition affecting this young woman and her cousin? Option…