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Unusual collateral vessel from right subclavian vein to left atrium, a rare complication of superior vena cava obstruction
Author(s) -
Parsaee Mozhgan,
Pouraliakbar Hamidreza,
Ghadrdoost Behshid,
Moosavi Jamal,
Behjati Mohaddeseh
Publication year - 2018
Publication title -
echocardiography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 62
eISSN - 1540-8175
pISSN - 0742-2822
DOI - 10.1111/echo.14038
Subject(s) - medicine , superior vena cava , radiology , azygos vein , thrombus , angiography , cardiology
The most commonly reported collateral systems in the setting of superior vena cava obstruction are azygos venous system, vertebral venous system, external and internal thoracic venous system based on McLntire and Sykes classification. A 49‐year‐old female with renal disease complained dyspnea on exertion. Transesophageal echocardiography showed significant mitral annular calcification, large multi‐lobulated mass at posterior aspect of RA , and complete obstruction of superior vena cava by thrombus formation. Computed tomography angiography showed a collateral vein to the left atrium (LA) roof. This case report is the first one which shows development of collateral vein from right subclavian to LA .