title: Dark urine, flank pain, and hematologic abnormalities in a 16-year-old boy.
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D006457:Hemoglobinuria, Paroxysmal / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology; D006801:Humans; D008297:Male; D010146:Pain / Q000209:etiology