Atypical presentation of a rib chondrosarcoma

Abstract

Background: This case report represents a variation from the typical characteristics of an uncommon cardiothoracic pathology, i.e rib chondrosarcomas. Usually this pathology is seen in patients over 40 years of age and grows relatively slowly, taking around 2 years to present clinically.

Case Presentation: Our patient was an asymptomatic and healthy 27 year old male who presented with a large right sided thoracic mass. CT scaning revealed an inhomogeneous lesion around 6cm in diameter, arising from the 8th right rib, with no obvious signs of aggressive type of growth and no evidence of metastatic spread. The decision was taken to excise the lesion based on clinical and radiological evidence. Histopathological analysis was carried out at two centres and reported a Grade II 55mm x 48mm x 43mm show with a variably cellular tumour consistent with chondrosarcoma. The case was discussed with the oncological team who advised no need for further treatment given histology and radiological report, except clinical and radiological surveillance.

Conclusions: Chondrosarcomas are the 3rd commonest type of bone tumour however it is considered rare for them to originate from the ribcage in a young individual over a relatively short time span. CT scanning is considered the gold standard image and surgery as the main form of management.