Term Name:	transverse pericardial sinus
Synonyms:	transverse sinus
Definition:	The passage between the venous and arterial mesocardia -i.e., between the aorta and pulmonary artery in front and the superior vena cava behind. Also, the sinus that forms in the pericardial cavity where the dorso-mesentary pericardium reside.[WP,unvetted].
Ontology:	Uberon Ontology [UBERON:0002248]