Systemic capillary leak syndrome is a rare disease characterized by life-threatening attacks of reversible plasma extravasation
and vascular collapse accompanied by hypotension, hemoconcentration, and hypoalbuminemia. A 36-year-old woman was admitted
to this hospital with a fever, along with symptoms consistent with an upper respiratory tract infection and hypotension. Initial
laboratory tests revealed several abnormal findings, including an elevated leukocyte count and hematocrit, hypoalbuminemia, and
acute renal failure. Here, we report a case of successful treatment of systemic capillary leak syndrome, which can be difficult to distinguish from septic shock.