Biomedical subjects
Publications and source records attributed to R S Desai.
Dentigerous cyst is one of the most prevalent types of odontogenic cyst and is associated with crown of an unerupted or developing tooth. Dentigerous cyst is more commonly seen with mandibular third molar and maxillary canine and rarely other teeth are involved. Here we report a case of dentigerous cyst involving permanent maxillary central incisor.
Supernumerary teeth (hyperdontia) are relatively common in the general population and occur more frequently in patients with a family history of such teeth. Supernumerary teeth have been reported in many genetic syndromes, but multiple supernumerary teeth occurring as an isolated non-syndromic trait are rare. This article describes a rare non-syndromic variety of multiple impacted supernumerary teeth in two brothers.
Fifty-nine patients were studied who had severe tricuspid regurgitation which was confirmed by right ventriculography and during surgery in order to determine the incidence of clinical, radiologic, and hemodynamic clues of severe tricuspid regurgitation. Eighty-eight percent of patients had Carvallo sign alone or in combination with pulsatile liver or prominent jugular venous V waves, and the classic triad was present in 42 percent. Most patients had enlargement of the right atrium on chest x-ray film. The classical "ventricularization" pattern of right atrial pressure was seen in 30 percent, prominent V waves with rapid Y descents were present in 37 percent, and normal contour of right atrial waves with normal mean pressure was seen in 33 percent. The inspiratory maneuver was helpful to induce the ventricularization pattern or prominent V waves with rapid Y descents especially in patients with normal right atrial pressure waves. In conclusion, right ventriculography is a sensitive and accurate method for detecting and quantitating tricuspid regurgitation in the absence of the diagnostic physical findings.