Neck + Lymph Nodes Flashcards
Parts of lymphatic system
Tonsils, adenoids, spleen and thymus
Lymphatic functinos
Transport clean fluids back to the blood
Drain excess fluids from tissues
Removes debris from cells of body
Transports fats from digestive system
Lymph flows in what direction.
One direction, up towards the neck
Where does lymph enter venous system
Subclavien
Right lymph drainage area handles
Right arm and chest
Left lymph drainage clears
Everything right doesnt
Why is there more afferent than efferent lympatic vessels
Takes in alot more than it gives out because it filters garbage
What is the lumph node chain we regularly image
Anterior cervical chain
Normal characteristics of lymph node
Small Oval Hilum present Moderate echogenicity Sharp margins, no structural changes Soft tissue edema Central vessel on Doppler Single vascular pedicle Regular vascular pattern Low impedence
What is the difference in appearance between normal and reactive lymph node
There is none
Abnormal lymph node appearance
Large Rounded Hilum absent Hypoechoic Irregular, angular,blurred margins Structural changes No edema Peripheral vessel on Doppler Multiple vascular pedicles Chaotic vascular pattern High impedence
