“…As no structures were duplicated, the anomaly does not belong to the spectrum of mirror hand. Several classification schemes for cleft hand exist, but none of these describe proximal involvement other than radio-ulnar synostosis (Al-Qattan, 2014;Shah et al, 2010). In the OMT-classification, this anomaly could be characterized as malformation-entire limb-unspecified axis (IA4), but it does not exactly fit any existing sub-classification (Tonkin et al, 2013).The presentation of this rare upper extremity anomaly is a forearm cleavage, less severe than the previously described case of total upper extremity cleavage described by Shah et al (2010), but more severe than a conventional cleft hand.…”