Congenital aplasia of the scaphoid bone

Congenital aplasia of the scaphoid bone without thumb or radial hypoplasia is a rare condition. In the literature, there are seven case reports of congenital scaphoid aplasia without other congenital abnormalities, but none of them are current. Scaphoid hypoplasia and aplasia have been defined with syndromes such as radial hemimelia, absence of thumb, vertebral defects, anal atresia, cardiac anomalies, tracheoesophageal fistula, renal anomalies, and limb abnormalities (VACTERL), Holt-Oram syndrome (heart defects and upper extremity anomalies), and thrombocytopenia-radius anomalies (TAR). This is a very rare case diagnosed in the pediatric age group with hypoplasia of the biceps brachii ipsilateral to scaphoid aplasia. Herein, a 12-year-old boy with unilateral scaphoid agenesis is presented, and its clinical and imaging findings as well as the treatment are discussed.