Diagnostic and Interventional Radiology
Cardiovascular Imaging - Original Article

Incidentally enhancing supraclavicular lymphatic convolutes in magnetic resonance angiography in patients with Fontan circulation

1.

Department of Paediatric Radiology, University Hospital of Leipzig, Leipzig, Germany

2.

Department of Pediatric Cardiology, University of Leipzig – Heart Center, Leipzig, Germany

3.

Department of Diagnostic and Interventional Radiology, University of Leipzig – Heart Center, Leipzig, Germany

Diagn Interv Radiol 2022; 28: 226-229
DOI: 10.5152/dir.2022.20887
Read: 272 Downloads: 48 Published: 26 March 2021

PURPOSE
Fontan procedure and its modifications are the preferred approach to definitive palliation in uni- ventricular hearts though often with short-term or long-term complications. It is believed that a dysfunction in lymphatic circulation is responsible for part of the complications. Occasionally, abnormal supraclavicular lymphatic vessel convolutes can be observed in contrast-enhanced magnetic resonance angiography (ceMRA). This study aims to determine the frequency of this phenomenon as well as a possible correlation with the functional status after Fontan procedure.

METHODS
CeMRA of 37 patients after Fontan surgery was retrospectively screened and grouped for the presence or absence of abnormal lymphatic convolute. An attempt was made to identify differ- ences in the level of dysfunction of the Fontan circulation between the 2 groups.

RESULTS
In 6 of 37 patients (16%), an abnormal cervical lymphatic convolute was found in the cervical venous angle. The surrogate parameters for a malfunction of the Fontan circulation did not sig- nificantly differ between both groups.

CONCLUSION
This is the first description of cervical lymphatic vessels in Fontan patients enhancing incidentally in ceMRA, probably due to venous-to-lymphatic reflux. As the likelihood of various complica- tions of Fontan circulation increases with the severity of lymphatic dysfunction, this observation could help to select patients who require closer monitoring or advanced lymphatic imaging.

You may cite this article as: Gräfe D, Hirsch FW, Roth C, Gräfe F, Gutberlet M. Incidentally enhancing supraclavicular lymphatic convolutes in magnetic resonance angiography in patients with fontan circulation. Diagn Interv Radiol. 2022;28(3):226-229.

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