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KMID : 1237720230560040584
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Anatomy & Cell Biology
2023 Volume.56 No. 4 p.584 ~ p.587
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Polymelia (thoracomelia), an extremely rare appearance of congenital anomalic limb in a Nepalese child and its embryological basis
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Ameet Kumar Jha
Samal Nauhria
Sabyasachi Maity
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Abstract
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Polymelia is an extremely rare congenital anomaly where an individual is born with an abnormally developedextra or supernumerary limb which is generally shrunken and functionless. A case of thoracomelia (a type of polymelia) wasobserved macroscopically and confirmed radiologically in 1.5 years old boy born in Nepal with an abnormal supernumeraryupper limb attached to his back in the thoracic region. The limb was successfully amputated, and the boy had a favorableoutcome after surgical treatment, without any adverse effects or impairment. Understanding the embryogenesis ofthoracomelia is essential for unraveling the complex mechanisms underlying this condition and potentially aiding in earlydiagnosis and intervention. This case report and review aims to shed light on the intricate processes governing forelimbformation and their perturbations leading to thoracomelia.
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KEYWORD
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Polymelia, Supernumerary upper limb, Upper extremity deformities, Congenital limb deformities, Musculo- skeletal diseases
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