Tumours and tumour-like lesions of scapula.

A retrospective study of 68 cases of tumours and tumour-like lesions related to the scapula, included in the registry of the Bone Tumour Reference Centre at the Institute of Pathology/University Clinics, Basle, has been carried out. Each case was evaluated for lesion entity, activity and location, age and sex of the patient, and, in 49 files with available radiographic documentation (mostly plain films), for radiologic appearance, with the aim to predict the histologic diagnosis or at least the correct dignity of the lesion. Statistically most frequent were cartilaginous tumours. More than 1/3 of all cases were osteochondromas, which demonstrated mostly a typical appearance. They were encountered predominantly in the first 3 decades in males and were located most often in the body of the scapula. 1/4 of all cases were chondrosarcomas, which were prevailing in the 4th-7th decades, but were occasionally found at a younger age too. Chondrosarcomas were located mainly at the lateral scapular margin over the inferior angle and in the acromion and coracoid process and their appearance ranged from typical to falsely benign. 1/3 of the cases represented a number of other benign and malignant histological entities.