Soft tissue Flashcards
signs that a soft tissue swelling is benign (5)
<5cm fluctuates in size fatty/soft cystic/fluid-filled well-defined
signs that a soft tissue swelling may be malignant (7)
lymphadenopathy systemic features irregular surface sold ill-defined rapid growing >5cm
Ix to differentiate solid/cystic soft tissue swellings
US
MRI is used if suspect a soft tissue swelling is __ and want more __
malignant
detail
lipoma usually arise in __ or may be in ___
features =
S/C fat , muscle
fatty, painless, can be large, benign
commonest hand swelling =
ganglion
ganglion swelling has a __ outer and a ___ inner lining and they __
sites =
at DIPJ is called a ___
fibrous outer synovial inner lining transilluminate hand wrist foot ankle knee mucous cyst
Rx for ganglion
excise only if painful
aspiration => 50% recurrence
GCT arises from ___ is 2nd most common ___
synovium tendon sheath/joint
hand swelling
GCT are ___ and have ___ deposition
sites = ++_
if painful Rx -
pigmented
haemosiderin
knee, toe and hand
excise (radio may help)
PVNS aka similar to \_\_\_ arises from \_\_\_ \_\_+\_\_ types commonest site = \_\_ may cause joint destruction and arthritis
Pigmented villonodlar synovitis GCT synovium nodular and diffuse knee
Rx of PVNS
synovectomy
may be a knee replacement
Baker’s cyst =
synovial fluid enters the semimebranous/medial gastroc bursa
Baker’s cysts ___ in kids, in adults cause __/___
resolve
intra-articular pathology/arthritis
Rx for Baker’s cyst
leave alone as high recurrence rate otherwise
commonest 4 sites of bursitis
olecranon
pre + infrapatellar bursa
1st MT head (bunion)
bunion =
1st MT head bursitis
implantation dermoid progression =
___ trauma > ___ cells into __ > ___ with ___ and typical __ fluid
penetrating epithelial S/C reactive cyst greyish
epidermoid/sebaceous cysts occur anywhere apart from __+__
___ cells go to ___ and line cyst secreting ___
usually have a __ connecting them to the epidermis
palms and soles epithelial S/C keratin punctum
Rx for skin abscess -
incise and drain
myositis ossificans = ___ ossification
trauma => ____ which ___ => __ around joints (usually ___)
on MRI can mimic ___
heterotrophic intramuscular haematoma calcifies stiffness painless osteosarcoma
Rx for myositis ossificans
can diminish over time
indomethacin can help
can excise when matured
radio post op/ prophylactically if have Sx and had it previously
malignant soft tissue swellings = (6)
angiosarcoma fibrosarcoma malignant fibrous histiocytoma liposarcoma rhabdomyosarcoma synovial sarcoma
for malignant soft tissue swellings Ix =
MRI -> biopsy (wide local incision with radio usually)
