骨軟部＆整形外科領域放射線（画像）診断学において、
「Skeletal Radiology」誌がとても役立ちますよ、
ということを以前お話ししましたが、
最新号の「Volume 49, Issue 9, September 2020」から下記4論文を紹介します。
「A comprehensive review of the normal, abnormal, and post-operative MRI appearance of the proximal biceps brachii. (Skeletal Radiology 2020;49(9):1333–1344.)」
肩関節ではなく、なんと上腕二頭筋に関する総説です。
「Radiological findings of denosumab treatment for giant cell tumours of bone. (Skeletal Radiology 2020;49(9):1345-1358.)」
Giant cell tumours of bone (GCTB)のdenosumab treatmentの画像評価に関する論文です。
最近結構目にするようになりましたね。
The development of a sclerotic neocortex and varying degrees of matrix osteosclerosis are seen on plain radiographs. Reconstitution of subarticular bone and articular surface irregularity are optimally evaluated on CT which can also quantify tumour density. MRI demonstrates heterogeneous low signal matrix and is useful to assess decrease in size of cystic and/or soft tissue components of GCTB. A fat-suppressed fluid-sensitive MR sequence is important to detect tumour reactivation. Reduction in 18F-FDG-PET avidity represents an early sensitive sign of response to denosumab treatment.
「The differentiation between aneurysmal bone cyst and telangiectatic osteosarcoma: a clinical, radiographic and MRI study. (Skeletal Radiology 2020:49(9):1375-1386.)」
Telangiectatic osteosarcoma自体が珍しいですが、ABCとの鑑別の検討です。
Lesions with a geographic Type 1A or IB pattern of bone destruction which are completely filled with FFLs on MRI can confidently be diagnosed as ABC.
注：The Lodwick classification is a system for describing the margins of a lytic bone lesion (or lucent bone lesion). The terms used in the description suggest the level of concern for an aggressive, and possibly malignant, process.
Classification
type 1: geographic
1A: thin, sclerotic margin
1B: distinct, well-marginated border, but not sclerotic
1C: indistinct border
type 2: moth-eaten
type 3: permeative
そのほかの「Skeletal Radiology」誌関連は、こちら。
（https://ocu-radiology.jp/news/news-2478/）
（https://ocu-radiology.jp/news/news-1067）