There are very small capital femoral epiphyses and hypoplastic, poorly formed acetabular roofs. The remaining cartilaginous portions of the epiphyses become thinner. The humerus shows an elongated epiphyses and a relatively large deltoideal process. DEH is described as a type of over growth at one or more epiphyses. In long bones, the secondary centers appear in the epiphyses. These various epiphyses are joined to the bone by the 25th year. Stippled epiphyses is a pattern of focal bone calcification. The ends of epiphyses are covered with hyaline cartilage ("articular cartilage"). The epiphyses on the upper metatarsals were hypertrophied (enlarged), a distinctive feature of the genus.