Osteocondroma escapular dorsal em uma criança - Relato de caso

Abstract

Multiple osteochondromas is an autosomal dominant disease caused by mutations in the EXT1 or EXT2 genes, in which patients develop multiple benign neoplasms covered with cartilage on the bone surface. It has a frequency of ~1.5% per year and an incidence of 1:50,000 people in the general population, being diagnosed during the first decade of life in more than 80% of patients. Osteochondromas are usually located in bones whose development occurs by endochondral ossification (appendicular skeleton, predominantly around the knee), although they can be in flat bones, whose development occurs by intramembranous ossification (costal arches, iliac and scapula). Osteochondromas located in the scapula are rare (4.6% of cases), although they are the most frequent tumors in this bone (14.4% of cases) - in most cases, they are located on the anterior surface of the scapula, and there are very few reports of lesions located on the dorsal surface of this bone. Resection of osteochondromas located in the scapula is indicated in symptomatic cases, in the need for cosmesis, in complications, in cases of uncertain diagnosis, or in cases in which there is a high risk of malignant transformation. In this study, we report on the case of a five-year-old girl who underwent successful surgical excision of a symptomatic dorsal scapular osteochondroma.