The "high-riding" superior pericardial recess: CT findings

OBJECTIVE. We recently observed patients in whom the superior pericardial r ecess extended cephalad ("high-riding") into the right paratracheal region. In these patients, differentiation from mediastinal lymphadenopathy or mas s was difficult. The put purpose of this study was to assess the prevalence and CT features of the high-riding superior pericardial recess. CONCLUSION. Narrow-collimation CT with multiplanar reformations was useful for confidently diagnosing a high-riding superior pericardial recess and fo r distinguishing it from pathologic lesions.