Abnormal finger phalanx morphology Partial absence of finger 2012-02-11T10:57:07Z UMLS:C4023423 The absence of a phalangeal segment of a finger. The part that is absent may be specified. The distal modifier specifies the loss of the distal phalanx; clinically this is defined by the absence of the nail. The proximal modifier specifies the loss of the proximal or middle phalanx with the nail still present and/or the radiographic finding of a remaining phalanx that is similar to a distal phalanx. It may be difficult to determine which phalanx is absent without x-rays and even then, there are circumstances where the missing bone may not be exactly identified (note that no attempt is made to distinguish missing middle from proximal phalanges). In this situation the location adjective will have to be removed. This finding is distinct from Short fingers. Partial absence of finger HP:0011299