Soft tissue final Flashcards
Mediastinal devisions
- Anterior (lateral)
- posterior (lateral)
- superior (lateral and PA)
- inferior (lateral)
DDx anterior mediastinum
- Thymic abnormality
- lymphoma
- Teratoma
- Substernal goiter
DDX middle mediastinum
- Aneurysm
- Bronchogenic carcinoma
- Lymphadenopathy
- Bronchogenic cyst
DDX Posterior mediastinum
- Hiatal hernia
- Paravertebral mass
- Neurogenic tumor
- Meningocele
clues for anterior mediastinal issue
- anterior clear space is not clear
2. larger mediastinal shadow on PA
Facts about concretions
- stones or liths of the abdomen
- MC in veins of pelvic bowl, gallbladder, collecting system of urinary tract
- occasionally in appendix
Where do concretions develop?
in the lumen of hollow organs or structures
What do concretions look like?
- round/oval
- uniformly opaque, lucent with opaque border, or opaque with a central lucency or laminated
- smooth and continuous outer border
Why do concretions form?
stasis, precipitation of crystals or blood clot formation
Conduit wall calcification facts?
- walls of tubular structures
- forms parallel tracks on film
- MC in arteries
- abdominal aorta, common iliac, splenic artery
Cystic pattern of calcification facts?
- calcification in wall of fluid filled sturcture or mass = curved line
- usually not continuous
- MC is aneurysm
Mass-like-pattern of calcification
- usually irregular pattern with discontinuous border
- density overall is mottled or amorphous (sometimes whorled)
- Uterine fibroid, nephrocalcinosis
Where should the right hemidiaphragm be at for a proper chest film?
at 10th posterior rib
ABCS for chest films?
ABDOMEN
BONE
CARDIOVASCULAR
SOFT TISSUES
Which hemidiaphragm is higher on a PA chest film?
the right but equal is okay