epipericardial

ep·i·per·i·car·di·al

(ep'i-per-i-kar'dē-ăl),
On or about the pericardium.
References in periodicals archive ?
During closure of the cervical sinus that lies between the second branchial arch and the epipericardial ridge, ectoderm may become trapped, resulting in the formation of an inclusion or cyst.