Figure 4

Hands of a patient with Bilginturan BD or HTNB (OMIM%112410). Metacarpals are short (specially II-V) with globular ends, irregular articular surfaces and cup deformity in the epiphysis of the proximal and medial phalanges. All the phalanges of the hands are also shortened, but the proximal and middle phalanges of the III and IV digits are relatively normal (courtesy of Dr. Sylvia Bähring and Dr. Okan Toka, unpublished case).