Tc-99m MAA findings in dilated cardiomyopathy with partial anomalous venous connections.

Shirou Ishii, Fumio Shishido, Masayuki Miyajima, Koutarou Sakuma, Takeshi Shigihara, Ken Kikuchi

Department of Radiology, Fukushima Medical University, Hikarigaoka, Fukushima, Japan. shirou@fmu.ac.jp

Clinical nuclear medicine 2011 Jul

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Tc-99m MAA showed asymmetric uptake in the lung field in a 21-year-old man with dilated cardiomyopathy. CT revealed partial anomalous venous connections in the left upper lobe. Angiogram of the left pulmonary upper lobe showed all the contrast material drained into the left vertical vein. The possible cause of relative increase in the left upper lobe blood flow is that right pulmonary blood flow is slowed by the high pressure in the left atrium due to dilated cardiomyopathy, whereas the flow from the left upper lobe drains into the superior vena cava which has less pressure than left atrium.

Citation

Shirou Ishii, Fumio Shishido, Masayuki Miyajima, Koutarou Sakuma, Takeshi Shigihara, Ken Kikuchi. Tc-99m MAA findings in dilated cardiomyopathy with partial anomalous venous connections. Clinical nuclear medicine. 2011 Jul;36(7):e57-60