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Biomedical subjects

R Siegert

Publications and source records attributed to R Siegert.

124 records · Page 7Linked to original sources
PubMedDate not supplied

[Mucosa-saving conservative maxillary sinus surgery with periostium-based facial bone coverage].

Two hundred and seven patients treated with various techniques of maxillary sinus surgery were followed up. Although this was a retrospective study the results seem to demonstrate that the more conservative surgical approaches are more favorable in terms of impaired sensitivity and pain in the maxillary sinus than the formerly practiced radical CALDWELL-LUC procedure. In some cases postoperative pain was improved by neurolysis and reconstruction of the facial bone wall.

Facial Bones↗
PubMedDate not supplied

[Non-invasive sonography and ultrasound-guided puncture of suspected malignant facial and neck masses].

102 patients with malignomas of the face and neck were examined by palpation, sonography, and in some cases also computed tomography. In 79 patients the cervical lymph nodes had to be removed surgically. Intraoperative and pathohistological findings were compared to the examination results before treatment. Sensitivity values were 100% for sonography, 85% for palpation, and 80% for CT. For a differentiation between benign and malignant space occupying lesions sonographic structures, shapes, and sizes of non-tumorous lymph nodes were compared to those of metastasizing ones. However, non-invasive sonography alone was not sufficient for a reliable diagnosis about the nature of the tumor. Therefore a first report is presented on ultrasound-guided fine needle puncture and aspiration biopsy of suspected malignant face and neck masses.

Biopsy, Needle↗