A 56-year-old man presents with abdominal pain. Can you spot the subtle but critical ‘telltale triangle sign’ on his Abdominal X-ray and determine the diagnosis?
What is the diagnosis in this 56-year-old man with abdominal pain?
What is the most likely diagnosis?
Abdominal pain, Abdominal X-ray, Perforated Ulcer, Pneumoperitoneum, Telltale Triangle Sign
