Bone And Soft Tissue

Question 1

Bone (trunk,skull, facial)

Answer 1

pT1: <= 8 cm
pT2: >8 cm
pT3: Discontinuous tumors in the primary bone site

Question 2

Bone (spine)

Answer 2

pT1: confined to 1 vertebral segment or 2 adjacent vertebral segments
pT2: confined to 3 adjacent vertebral segments
pT3: confined to 4 or more adjacent vertebral segments, or any nonadjacent vertebral segments
pT4a: Extension into the spinal canal
pT4b: gross vascular invasion or tumor thrombus in the great vessels

Question 3

Bone (pelvis)

Answer 3

(Pt1: Tumor confined to one pelvic segment with no extraosseous extension)
pT1a: <= 8 cm
pT1b: > 8 cm
(pt2: Tumor confined to one pelvic segment with extraosseous extension or two segments without extraosseous extension)
pT2a: <= 8 cm in greatest dimension
pT2b: > 8 cm in greatest dimension
(pT3: Tumor two pelvic segments with extraosseous extension)
рТЗа: <= 8 cm
pT3b: > 8 cm
(pT4: Tumor spanning three pelvic segments or crossing the sacroiliac joint)
pT4a: involves sacroiliac joint and extends medial to the sacral neuroforamen
pT4b: encasement of external iliac vessels or presence of gross tumor thrombus in major pelvic vessels

Question 4

Soft tissue (head and neck)

Answer 4

_pT1: <= 2 cm
_pT2: > 2 cm but <= 4 cm
pT3: > 4 cm
pT4a: orbital invasion, skull base / dural invasion, invasion of central compartment viscera, involvement of facial skeleton, or invasion of pterygoid muscles
pT4b: brain parenchymal invasion, carotid artery encasement, prevertebral muscle invasion, or central nervous system involvement via perineural spread

Question 5

Soft tissue (trunk and extremities)

Answer 5

_ pT1: <= 5 cm
_ pT2: > 5 cm and <= 10 cm
_ pT3: > 10 cm and <= 15 cm
_pT4: > 15 cm

Question 6

Soft tissue (abdomen and thoracic)

Answer 6

pT1: Organ confined
pT2a: serosa or visceral peritoneum
pT2b: beyond serosa (mesentery)
pT3: Invades another organ
pT4: Multifocal involvement
_ pT4a: 2 sites
_ pT4b: 3 - 5 sites
_pT4c: Multifocal >5 sites

Question 7

Soft tissue (retroperitoneum)

Answer 7

pT1: <= 5 cm
pT2: > 5 cm and <= 10 cm
pT3: > 10 cm and <= 15 cm
pT4: > 15 cm

Question 8

Soft tissue (orbits)

Answer 8

pT1: <= 2 cm
pT2: > 2 cm l without invasion
pT3: invasion of bony walls
pT4: invasion of globe or periorbital structures, including eyelid, conjunctiva, temporal fossa, nasal cavity, paranasal sinuses, and / or central nervous system