A Rare Case of Page Kidney With Superimposed Infection.

Page kidney (PK) is a rare renal condition characterized by external compression of the kidney, typically by a subcapsular hematoma, leading to resistant secondary hypertension due to hypoperfusion and ischemia. This hypertension is caused by the external compression of the kidney by a chronic subcapsular hematoma that activates the renin-angiotensin-aldosterone system (RAAS) system. Hematoma formation can result from external or internal trauma. The resolution of the hematoma can take months, and, in some cases, may necessitate a nephrectomy. Unresolved subcapsular hematomas can be complicated by infection, leading to sepsis, hospitalization, and the need for surgical drainage. This report presents a unique case of a 67-year-old female with a spontaneous left renal subcapsular hematoma that did not resolve with conservative measures and was complicated by superimposed infection requiring percutaneous drainage.