Transnodal lymphangiography and post-CT for protein-losing enteropathy in Noonan syndrome

Abstract

Noonan syndrome, which is a multiple congenital disorder, may be associated with lymphatic abnormalities. Protein-losing enteropathy (PLE) developing in Noonan syndrome is rare. We performed transnodal lymphangiography by directly accessing bilateral inguinal nodes under ultrasound guidance in a 17-year-old female with PLE developing in Noonan syndrome to assess detailed anatomical findings regarding lymphatic vessels. There have been no reports on transnodal lymphangiography for Noonan syndrome. Post-lymphangiographic CT images revealed multiple lymphatic abnormalities and lipiodol extravasation into the duodenum and the proximal jejunum. Transnodal lymphangiography was easy and safe for PLE developing in Noonan syndrome, and post-lymphangiographic CT provided invaluable information.

Key words:

• Noonan syndrome
• transnodal lymphangiography
• CT
• protein-losing enteropathy

Declaration of interest: The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.