Supernumerary Digits

Supernumerary Digits of the Hand

Figure 1. Left and right hands with ulnar polysyndactyly. Categorized as type V under the Duran classification.

An increased duplication of ZRS region that caused more than one supernumerary digits preaxial polydactyly in a large Chinese family

Preaxial polydactyly (PPD) is inherited in an autosomal dominant fashion and characterized by the presence of one or more supernumerary digits on the thumb side. It had been identified that point mutation or genomic duplications of the long-range limb-specific cis-regulator - zone of polarizing activity regulatory sequence (ZRS) cause PPD or other limb deformities such as syndactyly type IV (SD...

Supernumerary testis.

Polyorchidism is a rare congenital anomaly of the genital tract in which more than two testes are present, usually within the scrotum. Less than 100 cases of polyorchidism have been reported in medical literature till date. The most common form is the presence of three testis referred as triorchidism or tritestis. There are characteristic sonographic features of polyorchidism, and the diagnosis...

Handwritten Digits Recognition

Supernumerary lateral incisor.

Supernumerary teeth are common in general population and occur frequently in patients with familial trait. However, it is rare to find supernumeraries in individuals with no associated disease or syndrome. Supernumerary teeth are found in any region of maxilla and mandible, with a predisposition for anterior maxilla. A case of endodontically involved supernumerary lateral incisor is described.