The Many Faces of Cardiac Sarcoidosis.

Objectives: The objective of this study was to review and illustrate the sometimes diagnostically challenging features of cardiac sarcoidosis. We emphasize variable phenotypes presented at explant and biopsy evaluation and review literature regarding ancillary clinical and pathologic studies to enhance diagnostic accuracy.

Methods: A literature review was performed and two cardiac sarcoidosis cases were illustrated.

Heterophile antibody interference affecting multiple Roche immunoassays: A case study.

Background: Analysis of many clinically important analytes is dependent on antibody-based assays. However, depending on the design, these assays are vulnerable to interference from endogenous molecules including circulating antibodies and free biotin. In this case report, we describe a patient whose laboratory findings from immunoassay based methodologies, are inconsistent with the clinical presentation.