title: The anterior costal margin mass in patients with thalassaemia major.
abstract: In thalassaemia major, extramedullary haematopoiesis in the form of tumour-like masses, usually occurs in the posterior mediastinum. We present three cases in which such masses were found at the anterior part of the ribs. The radiological signs of this latter location, which is the second most common after the mediastinum, are described.
mesh_terms: D000328:Adult; D001706:Biopsy; D003937:Diagnosis, Differential; D005260:Female; D006410:Hematopoiesis; D006801:Humans; D008297:Male; D008482:Mediastinum / Q000000981:diagnostic imaging* / Q000473:pathology; D010024:Osteoporosis / Q000000981:diagnostic imaging* / Q000209:etiology / Q000473:pathology; D011859:Radiography; D012272:Ribs / Q000000981:diagnostic imaging* / Q000473:pathology; D013789:Thalassemia / Q000000981:diagnostic imaging / Q000473:pathology*; D013899:Thoracic Neoplasms / Q000000981:diagnostic imaging