Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Congenital bipartite lunate presenting as a misdiagnosed lunate fracture: a case report. | Loh et al. Journal of Medical Case Reports 2011 5 102 http content 5 1 102 WV journalof medical l rCASE REPORTS CASE REPORT Open Access Congenital bipartite lunate presenting as a misdiagnosed lunate fracture a case report Brian WZ Loh Jason Harvey Eugene TH Ek Abstract Introduction A rare case of congenital bipartite lunate in a child is reported. Carpal variants are very uncommon as independent entities with only three previous reports of this condition in the English literature. Case presentation An 11-year-old Caucasian boy presented with pain in the left wrist after a fall. Radiographs in the emergency department demonstrated a lunate that was divided into palmar and dorsal parts causing a misdiagnosis of fractured lunate. Magnetic resonance imaging was then used to differentiate between the two diagnoses. Conclusion Very few cases of bipartite lunate have been reported in the literature and unless awareness is raised about congenital anomalies such as this variant confusion may arise. Introduction The bipartite lunate is a rare congenital variation of the carpal bones. While anomalies such as a bipartite scaphoid bipartite hamate and carpal synostosis are well described in the literature 1-4 to our knowledge only three cases involving the lunate have previously been reported 5-7 . Here we demonstrate the radiographic imaging from an interesting case of congenital bipartite lunate that was initially misdiagnosed as a fracture in the context of trauma. Case presentation An 11-year-old Caucasian boy presented to the emergency department after a fall onto the outstretched left hand. Standard posteroanterior and lateral radiographs of the wrist were performed which demonstrated a lucent line through the lunate. On examination the patient reported pain over the dorsum of the distal radius and in the anatomical snuffbox but no point tenderness over the lunate. On the basis of this clinical presentation he was provisionally diagnosed with
