Mohindra Mukul, Tiwari Anurag, Gogna Paritosh, Thora Ankit
Department of Orthopaedics, Maulana Azad Medical College and Associated Hospitals, New Delhi, India.
Department of Orthopaedics, Pt. B. D Sharma Postgraduate Institute of Medical Sciences, Rohtak, India.
J Coll Physicians Surg Pak. 2014 Mar;24 Suppl 1:S43-5.
Osteochondromas are the most common benign tumours of the bone. They are solitary or multiple, pedunculated or sessile exophytic outgrowths from the bone surface that are composed of cortical and medullary component with an overlying hyaline cartilage cap. Marrow and cortical continuity with the underlying parent bone is the characteristic of the lesion; they mostly arise from the metaphysis of the bone. Osteochondromas arising from the diaphysis are rare; and nerve palsy arising in the setting of a diaphyseal osteochondroma is even rarer. This is a report of solitary osteochondroma arising from diaphysis of left humerus in a 10 years old boy, which resulted in median nerve palsy. Surgical excision relieved the symptoms completely. The aim of this case report was to draw attention to an unusual etiology of median nerve palsy caused by an osteochondroma arising from the diaphysis of humerus which is a rare site, and to emphasize its importance.
骨软骨瘤是最常见的骨良性肿瘤。它们可为单发或多发，有蒂或无蒂，从骨表面向外生长，由皮质和髓质成分以及覆盖其上的透明软骨帽组成。与下方母骨的骨髓和皮质连续性是该病变的特征；它们大多起源于骨的干骺端。起源于骨干的骨软骨瘤罕见；而在骨干骨软骨瘤情况下出现的神经麻痹则更为罕见。本文报道了一名10岁男孩左肱骨干发生的单发骨软骨瘤，该骨软骨瘤导致了正中神经麻痹。手术切除后症状完全缓解。本病例报告的目的是引起人们对由肱骨骨干（一个罕见部位）发生的骨软骨瘤导致正中神经麻痹这一不寻常病因的关注，并强调其重要性。
