Renal angiomyolipoma without visible fat: Can we make the diagnosis using CT and MRI?
Renal angiomyolipomas without visible fat (AML.wovf) are benign masses that are incidentally discovered mainly in women. AML.wovf are typically homogeneously hyperdense on unenhanced CT without calcification or haemorrhage. Unenhanced CT pixel analysis is not useful for diagnosis. AML.wovf are chara...
| Publicado en: | European Radiology Vol. 28; no. 2; pp. 542 - 554 |
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| Autores principales: | , , , , |
| Formato: | review Journal Article |
| Publicado: |
Springer Nature
Feb2018
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=126970463&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 126970463 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09387994 NPH jtl: European Radiology issn: 09387994 maglogo: N pubinfo: dt: Feb2018 vid: 28 iid: 2 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 126970463 126970463 144008826 NLM28779401 126970463 10.1007/s00330-017-4988-4 NLM28779401 126970463 ppf: 542 ppct: 12 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Renal angiomyolipoma without visible fat: Can we make the diagnosis using CT and MRI? aug: au: Lim, Robert S. Flood, Trevor A. McInnes, Matthew D. F. Lavallee, Luke T. Schieda, Nicola affil: Department of Medical Imaging, The Ottawa Hospital, The University of Ottawa, Ottawa, Ontario, Canada sug: subj: Tomography, X-Ray Computed Methods Adipose Tissue Kidney Kidney Neoplasms Diagnosis Magnetic Resonance Imaging Methods Neoplasms, Adipose Tissue Diagnosis Diagnosis, Differential ab: Renal angiomyolipomas without visible fat (AML.wovf) are benign masses that are incidentally discovered mainly in women. AML.wovf are typically homogeneously hyperdense on unenhanced CT without calcification or haemorrhage. Unenhanced CT pixel analysis is not useful for diagnosis. AML.wovf are characteristically homogeneously hypointense on T2-weighted (T2W)-MRI and apparent diffusion coefficient (ADC) maps. Despite early reports, only a minority of AML.wovf show signal intensity drop on chemical-shift MRI due to microscopic fat. AML.wovf most commonly show avid early enhancement with washout kinetics at contrast-enhanced CT and MRI. The combination of homogeneously low T2W and/or ADC signal intensity with avid early enhancement and washout is highly accurate for diagnosis of AML.wovf.Key Points: • AML.wovf are small incidental benign renal masses occurring mainly in women. • AML.wovf are homogeneously hyperdense with low signal on T2W-MRI and ADC map. • AML.wovf typically show avid early enhancement with washout kinetics. • Combining features on CT/MRI is accurate for diagnosis of AML.wovf. pubtype: Academic Journal doctype: review Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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