Subject(s)
COVID-19 , Cardiopulmonary Resuscitation , Emergency Medical Services , Out-of-Hospital Cardiac Arrest , Humans , Out-of-Hospital Cardiac Arrest/epidemiology , Out-of-Hospital Cardiac Arrest/therapy , Out-of-Hospital Cardiac Arrest/complications , Taiwan/epidemiology , Pandemics , COVID-19/epidemiology , COVID-19/complications , RegistriesABSTRACT
BACKGROUND: Psoas muscle abscess (PMA) is a collection of pus in the psoas muscle. It is considered a rare clinical entity and is often misdiagnosed due to highly vague symptoms. We report that point-of-care ultrasound (POCUS) serves as a useful and noninvasive tool for early detection of PMA. CASE REPORT: Our patient was a 35-year-old man without any past medical illness who visited the emergency department due to right lower back pain and hematuria for 8 months. He denied fever, trauma, or recreational drug use. On arrival, the patient's vital signs were stable and had no fever. Laboratory tests showed white blood cell count 12,800/µL with neutrophil segment 83.2%, C-reactive protein 0.2 mg/dL, and normal renal function. Urine routine showed red blood cells > 100/high-power field. Kidney-ureter-bladder radiograph revealed a positive psoas sign on the right. POCUS showed a mixed echogenic mass adjacent to the right kidney. Subsequently, contrast abdominal computed tomography revealed T10-T11 collapsed vertebral bodies with disc erosion and right psoas muscle abscess at the right kidney level. The patient received open drainage of psoas muscle abscess and T11-T12 laminectomy. He was discharged 13 days post admission. Why ShouldanEmergency PhysicianBe Aware of This? Early and accurate diagnosis of PMA is important because, if left untreated, mortality rate can reach 100%. A potential pitfall in our case is the presence of hematuria with flank pain that could lead to incorrect diagnosis of renal calculi, a much more common condition. This case illustrates the importance of using POCUS in any patient with back or flank pain, with or without hematuria.
Subject(s)
Hematuria , Psoas Abscess , Adult , Emergency Service, Hospital , Hematuria/etiology , Humans , Male , Point-of-Care Systems , Psoas Abscess/diagnostic imaging , Psoas Muscles/diagnostic imagingABSTRACT
BACKGROUND: Renal arteriovenous malformation (AVM) is a rare cause of massive hematuria, and patients with renal AVM may present with symptoms like urinary tract infections in the emergency department. CASE REPORT: A 37-year-old woman presented to the emergency department with symptoms of hematuria, urinary hesitancy, and severe suprapubic pain that had been present for a few hours. A urine examination revealed no pyuria, but urine occult blood for 3+ and a red blood cell count of >100 per high-power field. Bedside echocardiography revealed right kidney hydronephrosis and a distended bladder with a blood clot. A 3-way Foley catheter was inserted and drained 800 mL of bloody urine. A contrast-enhanced computed tomography scan was ordered that showed a 1.1-cm hypervascular tumor in the lower pole of right kidney, with active bleeding and rupture into the adjacent collecting system. Active renal tumor bleeding or renal AVM was suspected. The patient was transferred to a tertiary medical center where right renal artery angiography was arranged and disclosed an AVM with aneurysm formation at the right renal lower pole. Transarterial embolization was performed immediately to embolize the 3 feeders of the AVM. WHY SHOULD EMERGENCY PHYSICIANS BE AWARE OF THIS?: Renal AVM is a rare but potentially life-threatening cause of massive hematuria. Delayed or missed diagnosis is possible because renal AVM may present with symptoms like urinary tract infection, especially in young females. Renal artery angiography is the diagnosis of choice, and emergent transarterial embolization is now the standard of treatment.
