Sonography, 5-10 mhz sonography
DefinitionThis section has been translated automatically.
Non-invasive, imaging method suitable for exploratory assessment of suspicious palpation findings and soft tissue swelling (in particular also lymph node swelling) based on morphological parameters.
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- Basic diagnostics of the primary tumor, tumor aftercare, therapy control, unclear soft tissue swelling, sonographically controlled lymph node biopsy. Especially suitable for pre- and postoperative lymph node staging in malignant melanoma. A reliable differential diagnosis of pathological lymph node swelling is not possible with sonography alone.
- The following sonomorphological parameters are used to assess lymph node structures: Size (quotient of length and width diameter), shape (oval, round, polycyclic, bizarre), boundary (sharp, blurred, hardly delimitable, capsule perforation), echo pattern (homogeneous, inhomogeneous, echo rich, dorsal sound amplification, echo rich medullary reflex, echo poor rim), perfusion pattern (central vascular tree, eccentrically displaced vessels, peripheral vessels, hypervascularization).
LiteratureThis section has been translated automatically.
- Altmeyer P et al (1992) General Phenomena of Ultrasound in Dermatology. In: Altmeyer P, Gammal S, Hoffmann K (eds) Ultrasound in Dermatology. Springer Verlag, Berlin Heidelberg New York, S. 55-79
- Dill-Müller D, Kautz G (1997) Lymph node sonography. In: Sheaf C, Dumb R, Businessman R, Tilgen W (eds) Dermatological Oncology. Springer, Berlin Heidelberg New York. S. 310-317
- Ruocco E et al (2004) Noninvasive imaging of skin tumors. Dermatol Surgery 30: 301-310