fa Morphometry Morphometry Original Original Sirenomelia is a rare congenital anomaly that characterized by complete or incomplete fusion of lower lims and often associated with various malformations.In this report we describe one case of sirenomelia with multiple malformations including fibular agenesis, complete agenesis of anurectum, external genitalia and urinary tract, Inadditin, there was multiple anomaly upper limbs including agenosis of radius that is rarely seen in other reports. Sirenomelia, Congenital anomaly 105 109 http://anatomyjournal.ir/browse.php?a_code=A-10-304-125&slc_lang=fa&sid=1 Bahram Memar 10031947532846005483 10031947532846005483 Yes Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran. Naser Tayebi Meybodi 10031947532846005484 10031947532846005484 No Sakineh Amoueian 10031947532846005485 10031947532846005485 No Mahdi Farzad Nia 10031947532846005486 10031947532846005486 No Mahmoud Kalantari 10031947532846005487 10031947532846005487 No Farzaneh Farhadi 10031947532846005488 10031947532846005488 No