Differential diagnosis of T2 hypointense masses in musculoskeletal MRI

Many soft tissue masses have an indeterminate appearance on MRI, often displaying varying degrees and extent of T2 hyperintensity. However, a subset of neoplasms and tumor-like lesions may exhibit prominent areas of T2 hypointensity relative to skeletal muscle. The hypointensity observed on T2-weigh...

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Veröffentlicht in:Skeletal radiology 2021-10, Vol.50 (10), p.1981-1994
Hauptverfasser: Finkelstein, Dara, Foremny, Gregory, Singer, Adam, Clifford, Paul, Pretell-Mazzini, Juan, Kerr, Darcy A., Subhawong, Ty K.
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container_end_page 1994
container_issue 10
container_start_page 1981
container_title Skeletal radiology
container_volume 50
creator Finkelstein, Dara
Foremny, Gregory
Singer, Adam
Clifford, Paul
Pretell-Mazzini, Juan
Kerr, Darcy A.
Subhawong, Ty K.
description Many soft tissue masses have an indeterminate appearance on MRI, often displaying varying degrees and extent of T2 hyperintensity. However, a subset of neoplasms and tumor-like lesions may exhibit prominent areas of T2 hypointensity relative to skeletal muscle. The hypointensity observed on T2-weighted MRI can be caused by a variety of substances, including evolving blood products, calcifications or other inorganic crystals, or fibrous tissue. Carefully evaluating the presence and pattern of T2 hypointensity in soft tissue masses and considering potential causes in their associated clinical contexts can help to narrow the differential diagnosis among neoplastic and non-neoplastic possibilities. These include endometriosis, aneurysmal bone cysts, tenosynovial giant cell tumor, arteriovenous malformation and pseudoaneurysm, calcium pyrophosphate and hydroxyapatite deposition diseases, tumoral calcinosis, gout, amyloidosis, hemangiomas with phleboliths, low-grade fibromyxoid sarcoma, ossifying fibromyxoid tumor, collagenous fibroma, desmoid-type fibromatosis, myxofibrosarcoma, peripheral nerve sheath tumors, dedifferentiated liposarcoma, and treated sarcoma.
doi_str_mv 10.1007/s00256-021-03711-0
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source Springer Nature - Complete Springer Journals
subjects Amyloidosis
Aneurysm
Biological products
Calcinosis
Calcium
Calcium phosphate
Collagen
Crystals
Cysts
Diagnosis
Differential diagnosis
Endometriosis
Gout
Hemangioma
Hydroxyapatite
Imaging
Liposarcoma
Magnetic resonance imaging
Medical diagnosis
Medicine
Medicine & Public Health
Muscles
Neoplasia
Neoplasms
Nuclear Medicine
Orthopedics
Pathology
Peripheral nerves
Pseudoaneurysm
Radiology
Review Article
Sarcoma
Sheaths
Skeletal muscle
Soft tissues
Tumors
title Differential diagnosis of T2 hypointense masses in musculoskeletal MRI
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