Gross hematuria associated with oral isotretinoin treatment in a young patient with acne vulgaris

¹  Sakarya Sadıka Sabancı Hospital, Department of Urology, Sakarya, Turkey 
² Sakarya University, School of Medicine, Department of Urology, Sakarya, Turkey 
³ Sakarya University, School of Medicine, Department of Nephrology, Sakarya, Turkey