Tehran University of Medical Sciences International Journal of Hematology-Oncology and Stem Cell Research 2008-2207 10 2 2016 04 12 111 114 EN Hamid Shafi Urologist, Associate Professor of Urology, Hazrat Fatemeh Zahra Infertility Research Center, Babol University of Medical Sciences, Babol, Iran Mohsen Vakili Sadeghi Hematologist and Medical Oncologist, Associate Professor of Medicine, Babol University of Medical Sciences, Babol, Iran Hossein Ghorbani Pathologist, Associate Professor of Pathology, Babol University of Medical Sciences, Babol, Iran Majid Sharbatdaran Pathologist, Assistant Professor of Babol University of Medical Sciences, Babol, Iran 2015 12 20 2015 12 21 Second primary malignancy following multiple myeloma (MM) was reported several years ago. There are also rare reports of cases with synchronous MM and other malignancies. To our knowledge, only one case of MM following bladder cancer has been reported in the literature. Here, we report the second case occurred three months after diagnosis of bladder cancer. https://ijhoscr.tums.ac.ir/index.php/ijhoscr/article/view/538 https://ijhoscr.tums.ac.ir/index.php/ijhoscr/article/download/538/485