B6.016 Soft Tissue Tumors (General Features) Flashcards Preview

MM Test 1 > B6.016 Soft Tissue Tumors (General Features) > Flashcards

Flashcards in B6.016 Soft Tissue Tumors (General Features) Deck (11):
1

definition of a soft tissue tumor

mesenchymal proliferations that occur in nonepithelial, extraskeletal tissues of the body

2

locations of soft tissue tumors

40% lower extremity
30% trunk and retroperitoneum
20% upper extremity
10% head and neck

3

classification system of soft tissue tumors

based on type of tissue they arise from
some have specific chromosomal abnormalities and genetic rearrangements that can be used as markers

4

categories of soft tissue tumors

1. benign tumors or tumor-like lesions
2. intermediate malignancy
3. malignant (sarcomas)

5

characterize benign soft tissue tumors

most common
rarely recur
do not metastasize

6

characterize intermediate malignancy

frequently recur
rarely metastasize

7

characterize malignant tumors (sarcomas)

frequently recur
frequently metastasize

8

sarcoma treatment factors

type and site
grade (histological)
stage (clinical)

9

how is a tumor graded

low, intermediate, high
based on differentiation, mitoses, and % necrosis

10

in general what types of tumors have a better prognosis

tumors arising in superficial locations are detected earlier and have a better prognosis than deep seated tumors

11

tissue types

adipose
fibrous
smooth muscle
skeletal muscle
vascular
peripheral nerve sheath
synovial