Alicioglu B.2024-06-122024-06-1220070364-2348https://doi.org/10.1007/s00256-006-0187-0https://hdl.handle.net/20.500.14551/16104A case of a 10-year-old boy with hypoplasia of the flexor pollicis longus and without other associated anomalies and trauma history is reported. Flexor pollicis longus tendon anomalies are rare; several types of this congenital anomaly have been reported in the literature. The diagnosis should be considered to the conditions of a patient who was unable to flex the interphalangeal joint of the thumb. Hypoplastic thumb or absent interphalangeal joint crease may be a diagnostic feature in such cases. We preoperatively present the radiological findings of this rare congenital anomaly. Ultrasound and magnetic resonance imaging (MRI) features have never been reported in the literature. © ISS 2006.en10.1007/s00256-006-0187-0info:eu-repo/semantics/closedAccessFlexor Pollicis Longus Tendon Aplasia; Flexor Pollicis Longus Tendon Hypoplasia; Hand; Tendon AbnormalitiesArticle; Case Report; Echography; Flexor Pollicis Longus Hypoplasia; Flexor Tendon; Hand Muscle; Human; Interphalangeal Joint; Joint Mobility; Male; Muscle Malformation; Nuclear Magnetic Resonance Imaging; Pathological Anatomy; Preoperative Evaluation; Priority Journal; School Child; Thumb; Child; Hand Deformities, Congenital; Humans; Magnetic Resonance Imaging; Male; Tendons; ThumbArticle36SUPPL. 11201232-s2.0-3424857964217028901Q2