Ultrasound for critical care physicians: complication of a distant malignancy

An 82-year-old woman with prior medical history of stage IV colon cancer and chronic obstructive pulmonary disease presented to the medical intensive care unit with newly diagnosed community acquired pneumonia and acute kidney injury. The patient presented with acute onset of shortness of breath, nausea, generalized weakness, bilateral lower extremity swelling and decreased urine output. She was transferred for short term dialysis in the setting of multiple electrolyte abnormalities, including hyperkalemia of 6.4 mmol/l, as well as a creatinine of 6.5 mg/dl. The following imaging of the right internal jugular vein was performed with ultrasound during preparation for placement of a temporary triple lumen hemodialysis catheter.