TY - JOUR T1 - A black femoral head JF - BMJ Case Reports DO - 10.1136/bcr.08.2008.0607 VL - 2009 SP - bcr0820080607 AU - Enrico Selvi AU - Roberta Maggio AU - Estrella Garcia Gonzalez AU - Marco Bardelli Y1 - 2009/01/01 UR - http://casereports.bmj.com/content/2009/bcr.08.2008.0607.abstract N2 - A 55-year-old white female complained of progressive pain in the left hip mainly while walking. Since the age of 40 she had suffered from back pain and stiffness. In 2000 she consulted a rheumatologist who noticed brown pigmentation on the sclera and external ear, and diagnosed alkaptonuria. A quantitative essay of … ER -