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A 76-year-old man with renal failure from nephroangiosclerosis received a kidney transplant from a deceased donor. The transplant was functioning well when the patient underwent a radical laryngopharyngoesophagectomy, with colopharyngeal anastomosis, for esophageal carcinoma. He was transferred to the intensive care unit 5 days after surgery, where his urine was noted to be green (right-hand specimen, next to a normal urine specimen), with unremarkable sediment and a creatinine level of 1.4 mg per deciliter (123.8 µmol per liter). Owing to the presence of mucous drainage from the proximal surgical wound, the patient had received an injection of methylene blue (also . . . [Full Text of this Article] |
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