Nous rapportons le cas d’un chylothorax congénital récidivant mis sous somatostatine à j27 avec découverte à 34 d’une hypothyroïdie périphérique. L’amélioration clinique du chylothorax, faible jusqu’ici, fut nette dès la mise sous lévothyroxine. L’objectif de l’article est d’établir un lien entre ces 2 pathologies, après revue de la littérature.

Congenital chylothorax, an uncommon disorder, is a therapeutic challenge without satisfactory results. When classical medical approaches fail (such as thoracosynthesis, total parenteral nutrition, and fasting followed by oral medium-chain triglycerides), some medical teams introduce somatostatin or octreotide in cases of recurring chylothorax. We report a case of recurring chylothorax treated with somatostatin at day 27 correlated with an unfortunate discovery of hypothyroidism on day 34. Clinical signs of chylothorax on somatostatin clearly improved with the introduction of levothyroxine. This article points out the relation between the two diseases based on a review of the literature.