Field Borders Flashcards
The nasopharynx superior, ant, inf, lat
base of skull, nasal cavity, soft palate, eustachian tubes
The nasopharynx borders, post, sup, inf, lat,
Clivius, c1/c2, soft palate, laryn- giopharynx, pharyngeal wall
The oropharynx borders anterior, post
tonsillar pillar, c2-c3
hypopharynx borders superior, inf, lat, ant
hyoid bone, esophagus, pyriform sinus, cricoid
The oropharynx contains
tonsilar fossa and pillars, soft palate, base of tongue, pharyn- geal wall
The hypopharynx contains
pysriform sinus, post cricoid area, and pharyngeal wall
borders for breast tangents? sup
sup-first intercostal space
borders for breast tangents? inf
inf 1/5 cm below the inframammary fold
borders for breast tangents? med
med-midline
borders for breast tangents? lat
lat- mid axillary line 2 cm beyond all breast tissue
borders for sclav field? sup/inf/med/lat
sup-thyrocricoid groove
inf-top of tangent field
med-1 cm beyond midline and in- side sternocleidomastoid superi- orly
lat- acromioclavicular joint
borders for IM fields? sup/inf/med/lat
sup to match sclav field
inf- xyphoid process
med- 1cm past midline
lat 5 cm past midline on ipsilateral side
borders for pab field? sup/inf/med/lat
sup- bisect clavicle and humeral head
inf match tangent filed
med include nodes that lie close to chest wall
lat- latissimus dorsi muscle
AP/PA Borders for RT stomach cancer (sup, inf, left, right)
bottom of T8, Bottom of L3, 2/3 of left hemidiaphragm, 3-4 cm right of vertebral bodies
Lateral field borders for stomach can- cer (sup, inf, ant, post)
bottom of T8, bottom of L3, ant to abd wall, 1/2 of vertebral bodies
PA field borders for colon ca? sup, inf, lat
bottom of L5, 5cm + below scar, 1-2 cm beyond pelvic inlet
lateral field borders for colon ca? post, ant
post sacrum, ant to or mid acetabulum
How much margin to tumor bed for colon cancer?
4-5 cm including nodes
Treatment borders anal cancer (sup, inf, lat)
bottom of SI joints, 3 cm distal tumor, inguinal nodes
EBRT borders cervical cancer inf, lat, sup,
obturator foramina, 2 cm pelvic side wall, L5-S1
Traditional RT for endometrial cancer fields borders sup, lat, inf
L4-5, 1.5-2 cm of pelvic side wall, obturateor foramen
Spinal port for CSI includes
S2 and lateral borders of vertebral bodies
CSI of the brain field includes what?
cribiform pate to C2, flash all around
traditional treatment for HN cancers RT
3 field, lateral necks and ap sclav type
