A de novo interstitial deletion of 8p11.2 including ANK1 identified in a patient with spherocytosis, psychomotor developmental delay, and distinctive facial features

► A pure chromosomal deletion of 8p11.21 was identified on a female patient with hereditary spherocytosis. ► The deletion identified in this study is located on the most proximal end of 8p. ► The patient exhibited mild developmental delay and distinctive facial findings.