History A 27-year-old woman is admitted to the emergency department complaining of pain across her back. She became unwell 2 days previously when she started to develop a fever and an ache in her back. The pain has become progressively more severe. She has vomited twice in the past 6 h. She has had no previous significant medical history apart from an uncomplicated episode of cystitis 3 months ago. Examination She looks unwell and is flushed. Her temperature is 39.5°C.

Her pulse is 120 beats/min, and blood pressure is 104/68 mmHg. Examination of the cardiovascular and respiratory systems is unremarkable. Her abdomen is generally tender, but most markedly in both loins. Bowel sounds are normal. What is the likely diagnosis? This image-based content is from Docplexus editorial team for educative purpose only Source: 100 Cases in Clinical Medicine Stay connected, the answer will be…