Lesson 2.2 - Neck and lymph nodes Flashcards
4 parts of the lymphatic system (around the body)
tonsils
adenoids
spleen
thymus
t/f lymph fluid flows into the subclavian veins
true
right side drainage of lymph clears what versus left
right- right arm/chest
left- rest of the body
inflammation of lymph vessels (term)
lymphagitis
infection of lymph vessels (term)
lymphadenitis
enlargement of lymph nodes
lymphadenopathy
lymph glands of the neck (3)
occipital cervical subclavicular submandibular submental parotid
how do reactive lymph nodes differ from normal
longer and thinned out
whats considered an enlarged LN
over 2cm
echogenicity of a lymphnode
moderate
size of LN
oval
are LN vascular? describe
yes -
central vessel
single vascular pedicle
t/f
normal and reactive LN have the same vascular appearance
true
enlargement of cervical lymph nodes commonly occurs with what
viral infections
whats a normal vs abnormal LN shape
oval is normal
rounded is abnormal
Is edema present characteristic of normal or abnormal LN
normal
where is the vessel on doppler for normal vs abnormal
central vessel normal
peripheral vessel abnormal
impedance level for normal vs abnormal LN
low impedence normal
high impedence abnormal
what is lymphedema
chronic swelling of limbs caused by accumulation of lymph fluid
what does lymphodema lead to (2)
inflammation
fibrosis
cause of lymphedema
tumours
surgery
lymphoma
malignant tumours of lymphoid tissue, classified as hodgkin’s or non-hodgkin’s lymphomas
characteristics of hodgkin’s disease
painless enlargement of LN through body
what nodes are first to be noticed with hodgkin’s disease
superficial LN in the neck first to be noticed
non-hodgkin’s lymphoma examples (2)
multiple myeloma
Burkitt’s lymphoma
how are non-hodgkin’s tumours classified
classified according to type of cell involved and degree of malignancy
thyroglossal duct cyst most common population and location
neck mass in children - cyst located beneath skin of anterior neck midline (superior medial neck)
thyroglossal duct cyst sono appearance and possible reason
low-level intraluminal reflectors
potentially due to bleeding or infection
branchial cleft cyst
cystic mass along medial border of SCM muscle
superior lateral neck