Microvascular right-to-left pulmonary shunt demonstrated by a radionuclide method.
A 37-yr-old man with angiolymphoid hyperplasia (Kimura's syndrome), who had been treated unsuccessfully for suspected asthma, was investigated due to a decrease in arterial oxygen saturation (86%). Right heart catheterization and angiography of the pulmonary artery failed to demonstrate any right-to-left shunts. However, simultaneous scintigraphy over the lungs, kidneys, and head after injection of 150 MBq technetium-99m-labeled macroaggregated albumin i.v. and inhalation of 150 MBq krypton-81m demonstrated a right-to-left shunt in the lungs probably caused by precapillary pulmonary arteriovenous shunts.
Kjøller
E
E
Cardiovascular Laboratory, Rigshospitalet, University Hospital, Copenhagen, Denmark.
Pedersen
F
F
Svendsen
T L
TL
Sørensen
S S
SS
D000328:Adult; D000796:Angiolymphoid Hyperplasia with Eosinophilia / Q000150:complications; D001164:Arteriovenous Fistula / Q000150:complications / Q000000981:diagnostic imaging*; D006801:Humans; D007727:Krypton Radioisotopes; D008297:Male; D011651:Pulmonary Artery; D011667:Pulmonary Veins; D011877:Radionuclide Imaging; D013668:Technetium Tc 99m Aggregated Albumin
D007727:Krypton Radioisotopes; D013668:Technetium Tc 99m Aggregated Albumin