Biomedical subjects
C Berchtold
Publications and source records attributed to C Berchtold.
A simplification of the nuclear run-off transcription assay.
Explore the source record for details and available documents.
[Significance of sonography in the assessment of shoulder symptoms].
Explore the source record for details and available documents.
[Significance of computerized tomography and sonography in the staging (TNM classification) of cancers of the tongue and floor of the mouth].
Computerized tomography and sonography were used for pretherapeutic staging of 40 patients with cancer of the tongue. The size of the tumors and invasion of cervical lymph nodes were assessed, and both methods were compared in relation to the stage of the tumor. Clinical findings were amended by diagnostic imaging in 25% of the cases. There was a distinct preponderance of advanced stages. Ultrasonography proved superior to CT for T1 and T2 tumors. Full assessment of T4 tumors was feasible by CT only. We were able to develop a selective protocol for the use of CT and ultrasound scan based on the TNM classification.
[Sonography of jugular vein thrombosis].
Based on a case report, angiographic and sonographic findings of jugular venous thrombosis are discussed. On the strength of the sonographic demarcation of anatomical and functional soft tissue structures of the neck ultrasound should rank first in the diagnostic hierarchy after clinical investigation.
[Evaluation of bone lesions in malignant lymphomas].
Skeletal involvement of non-Hodgkin's lymphoma is found in 11-16%, in Hodgkin's disease in 7.6-34%. Primary lymphoma of bone has an incidence of 1-50% among all non-Hodgkin's lymphoma. The occurrence of skeletal lesions is higher in infants and children than in adults. Skeletal lesions caused by Hodgkin's and non-Hodgkin's lymphoma are mostly seen in the axial skeleton including the skull, whereas the primary lymphoma of bone seems to prefer a more peripheral site. The aggressiveness of the tumor growth can be measured by the method of Lodwick, by judging the edge characteristic, the penetration of the cortex, the periostal and sclerotic reaction. 3 examples illustrate this method. Conventional radiographs need only be performed when there is reason to believe a lesion is located in an area of structural importance, such as the neck of the femur, and in cases of skeletal pain of unknown origin.