Unusual case of pulmonary renal syndrome with autopsy findings

Scleroderma renal crises (SRC) is a serious complication of systemic sclerosis whose prognosis remains serious despite management with angiotensin-converting enzyme inhibitors, antihypertensives and dialysis. Pulmonary renal syndrome (PRS), characterised by diffuse alveolar hemorrhage (DAH) and SRC, is rare and carries a grave prognosis. This case report discusses the clinicopathological features of a 43-year-old male presenting with severe hypertension and rapidly progressive renal failure who subsequently developed DAH and died. The clinical course, exhaustive investigative work-up and autopsy findings led to a diagnosis of diffuse systemic sclerosis with PRS subcategorized into PRS with thrombotic microangiopathy. The index case came without a prior diagnosis of systemic sclerosis, thereby posing a serious diagnostic challenge and management issues.