%0 Journal Article %T Alkaptonuria: A rare cause of recurrent severe back pain in the emergency department %A MSeidahmed %A AbdelRahman %A Abdulhadi ASalih %J Journal of Emergency Medicine, Trauma and Acute Care %D 2012 %I Bloomsbury Qatar Foundation Journals %R 10.5339/jemtac.2012.19 %X We report a 45 year-old male patient who presented to the emergency department of Hamad General Hospital with recurrent severe low back pain. Clinical examination revealed characteristic deposition of blue-brownish pigment in the sclera and ear. X-ray revealed diffuse intervertebral disc calcification. Alkaptonuria was suspected and the diagnosis was confirmed by detection of high levels of homogentisic acid in the urine. %U http://www.qscience.com/doi/pdf/10.5339/jemtac.2012.19