TY - JOUR
T1 - T2 black lesions on routine knee MRI
T2 - differential considerations
AU - Wadhwa, Vibhor
AU - Cho, Gina
AU - Moore, Daniel
AU - Pezeshk, Parham
AU - Coyner, Katherine
AU - Chhabra, Avneesh
N1 - Publisher Copyright:
© 2015, European Society of Radiology.
PY - 2016/7/1
Y1 - 2016/7/1
N2 - The majority of abnormal findings or lesions on T2-weighted fast spin-echo (FSE) magnetic resonance imaging (MRI) are hyperintense due to increased perfusion or fluid content, such as infections, tumours or synovitis. Hypointense lesions on T2-weighted images (both fat-suppressed and non-fat-suppressed) are less common and can sometimes be overlooked. Such lesions have limited differential diagnostic possibilities, and include vacuum phenomenon, loose body, tenosynovial giant cell tumour, rheumatoid arthritis, haemochromatosis, gout, amyloid, chondrocalcinosis, hydroxyapetite deposition disease, lipoma arborescens, arthrofibrosis and iatrogenic lesions. These lesions often show characteristic appearances and predilections in the knee. In this article, the authors describe the MRI features of hypointense T2 lesions on routine knee MRI and outline a systematic diagnostic approach towards their evaluation. Key Points • Hypointense lesions on T2 images (T2 Dark Lesions) encompass limited diagnostic possibilities. • T2 Dark lesions often show characteristic appearances and predilections in the knee. • A systematic diagnostic approach will help radiologists make the correct diagnosis.
AB - The majority of abnormal findings or lesions on T2-weighted fast spin-echo (FSE) magnetic resonance imaging (MRI) are hyperintense due to increased perfusion or fluid content, such as infections, tumours or synovitis. Hypointense lesions on T2-weighted images (both fat-suppressed and non-fat-suppressed) are less common and can sometimes be overlooked. Such lesions have limited differential diagnostic possibilities, and include vacuum phenomenon, loose body, tenosynovial giant cell tumour, rheumatoid arthritis, haemochromatosis, gout, amyloid, chondrocalcinosis, hydroxyapetite deposition disease, lipoma arborescens, arthrofibrosis and iatrogenic lesions. These lesions often show characteristic appearances and predilections in the knee. In this article, the authors describe the MRI features of hypointense T2 lesions on routine knee MRI and outline a systematic diagnostic approach towards their evaluation. Key Points • Hypointense lesions on T2 images (T2 Dark Lesions) encompass limited diagnostic possibilities. • T2 Dark lesions often show characteristic appearances and predilections in the knee. • A systematic diagnostic approach will help radiologists make the correct diagnosis.
KW - Arthrofibrosis
KW - Chondrocalcinosis
KW - Chondromatosis
KW - MRI knee
KW - Tenosynovial giant cell tumour
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U2 - 10.1007/s00330-015-4027-2
DO - 10.1007/s00330-015-4027-2
M3 - Review article
C2 - 26420500
AN - SCOPUS:84944546731
SN - 0938-7994
VL - 26
SP - 2387
EP - 2399
JO - European Radiology
JF - European Radiology
IS - 7
ER -