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Radiological Reasoning: Right Atrial Mass

¹ Department of Radiology, University of Michigan, 1500 E Medical Center Dr., Ann Arbor, MI 48109.
² Department of Cardiology, German Heart Center, Berlin, Germany.

View larger version (133K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 1A —66-year-old asymptomatic man with history of bladder cancer and incidentally discovered cardiac mass. (See also Figure S1, cine loops, in supplemental data online.) Four-chamber b-SSFP (balanced steady-state free precession) (bright blood) image shows pedunculated right atrial mass.

View larger version (131K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 1B —66-year-old asymptomatic man with history of bladder cancer and incidentally discovered cardiac mass. (See also Figure S1, cine loops, in supplemental data online.) T1-weighted (B) and T2-weighted (C) black blood images show mass to be homogeneous and intermediate in signal intensity.

View larger version (140K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 1C —66-year-old asymptomatic man with history of bladder cancer and incidentally discovered cardiac mass. (See also Figure S1, cine loops, in supplemental data online.) T1-weighted (B) and T2-weighted (C) black blood images show mass to be homogeneous and intermediate in signal intensity.

View larger version (144K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 1D —66-year-old asymptomatic man with history of bladder cancer and incidentally discovered cardiac mass. (See also Figure S1, cine loops, in supplemental data online.) T1-weighted fat-suppressed image shows lack of signal suppression in mass.

View larger version (116K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 1E —66-year-old asymptomatic man with history of bladder cancer and incidentally discovered cardiac mass. (See also Figure S1, cine loops, in supplemental data online.) Contrast-enhanced first-pass perfusion images in right (E) and left (F) sides of heart show no enhancement of mass.

View larger version (136K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 1F —66-year-old asymptomatic man with history of bladder cancer and incidentally discovered cardiac mass. (See also Figure S1, cine loops, in supplemental data online.) Contrast-enhanced first-pass perfusion images in right (E) and left (F) sides of heart show no enhancement of mass.

View larger version (125K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 1G —66-year-old asymptomatic man with history of bladder cancer and incidentally discovered cardiac mass. (See also Figure S1, cine loops, in supplemental data online.) On T1-weighted delayed contrast-enhanced image, mass does not exhibit enhancement.

View larger version (149K): [in this window] [in a new window] [as a PowerPoint slide]   Fig. 2 —Photomicrograph of resected myxoma specimen shows predominantly uniform population of stellate cells with minimal cytologic atypia in a myxoid background. Scattered hemosiderin-laden macrophages are present. (Courtesy of Jonathan McHugh, Department of Pathology, University of Michigan, Ann Arbor, MI)

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