Nucleus pulposus pulmonary embolism. A case report.

Study Design: This postmortem case report describes nucleus pulposus pulmonary embolism occurring in a human.

Objectives: Clinical, pathologic, and pathogenetic features of the case are discussed. Reference is made to warnings in the literature stressing the importance of avoiding, during radiologic procedures, any possibility of intrathecal ingress of iodinated, ionic, hyperosmolar contrast material.

Acute, complete, extrinsic obstruction of the Björk-Shiley valve in the immediate postoperative period.

The following report describes a case in which acute, complete, extrinsic obstruction of a Björk-Shiley prosthetic aortic valve by suture material occurred in the immediate postoperative period.