Biomedical subjects
Publications and source records attributed to C C Yeong.
Bilateral extracranial internal carotid aneurysms are very rare, though well documented. We report a case of bilateral extracranial internal carotid aneurysms presenting with vocal fold paralysis, which we believe to be the first.
We report our findings using the "reverse shuffle" technique of stepping table femoral angiography. This technique represents a simple modification of the conventional stepping table sequence entailing a reverse table movement allowing acquisition of early and late films in the distal positions. It was developed in order to minimize the number of runs required in each examination. In a retrospective study 52/53 (98%) of angiograms using the reverse shuffle technique required only a single run compared with 30/51 (58%) using the conventional technique. We believe that the reverse shuffle should be used where possible when stepping table angiography is performed. Furthermore, the incorporation of a reverse table movement may also be advantageous in angiography using automated digital subtraction angiography (DSA) stepping systems.
We report a case of Mirizzi syndrome due to a cystic duct stone occurring in a 66-year-old man in the presence of multiple debilitating medical conditions which precluded surgery. The patient was successfully treated by percutaneous stone removal and made a swift and uneventful recovery. This is the first report of Mirizzi syndrome due to a ductal stone being treated in this manner.