MEDRADSC 3I03 Lecture Notes - Lecture 8: Thyroid, Calcification, Edema

• School: McMaster University
• Department: Medical Radiation Sciences
• Course: MEDRADSC 3I03
• Professor: Alana Trainor

Document Summary

Imaging cervical lymph nodes video https://www. youtube. com/watch?v=ba78b_qlvis (1) Blood pressure: drives fluid into evs. Osmotic pressure: drives fluid into vs. 10% - excess: drained by lymphatics. All lymph drainage flows through at least one node. Only orbit and muscle devoid of lymphatics. Nodes usually embedded in fat: good to use as contrast in imaging. Risk of mets site specific: low risk glottis, lip, paranasal sinuses, high risk supraglottis. Midline tumors at risks for bilateral mets. Single metastatic node reduces survival by 50% 15% of clinical n0 patients have histologic mets. Retropharyngeal and high jugular nodes clinical blindspots. Predict primary tumor given know nodal involvement. Fast suppressed t1 gd superb: beware of nsf. Rouviere classification: lateral cervical, anterior cervical, submandibular, submental, parotid, retropharyngeal, occipital, facial, mastoid, sublingual. Internal jugular follows ijv: spinal accessory posterior cervical space, transverse cervical supraclavicular. High jugular nodes: skull base to carotid bifurcation (=hyoid) Mid jugular nodes: carotid bifurcation to omohyoid (=cricoid)