Shiri Farhana MBBS, Presenter: Nothing to Disclose

Masataka Uetani MD, Abstract Co-Author: Nothing to Disclose

Rafael Mursalin MBBS, Abstract Co-Author: Nothing to Disclose

Tetsuji Yamaguchi MD, Abstract Co-Author: Nothing to Disclose

1. The abnormalities in articular cartilage and subchondral bone are closely related to each other and should be regarded as a single unit in various disorders. 2. Subchondral bone marrow edema is a nonspecific finding, but it can be a major prognostic factor of articular damage. 3. Characteristic imaging findings and differential diagnosis in various subchondral lesions are presented.

1. Anatomy of subchondral bone -  Subchondral trabecular bone structure on high resolution CT and MRI (Fig.1) -  Normal and variations of subchondral bone marrow on MRI 2. Physiological relationship of cartilage and subchondral bone 3. Pathological conditions of subchondral bone (Fig 2-5) - Trauma (e.g. subchondral fracture, osteochondral fracture, bone bruise) - Subchondral insufficiency fracture - Transient bone marrow edema syndrome - Osteonecrosis, osteochondritis dissencans - Various articular diseases (e.g. rheumatoid arthritis, osteoarthritis) - Tumors or tumor-like lesions (e.g. giant cell tumor, chondroblastoma)  

http://abstract.rsna.org/uploads/2014/14016282/14016282_r9mi.pdf

Farhana, S, Uetani, M, Mursalin, R, Yamaguchi, T, Search under the Cartilage: A Gamut of Subchondral Lesions.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14016282.html