Thoracic Flashcards
What causes obliteration of the Raider Triangle?
aberrant right subclavian artery
What cardiac valve is most superior?
pulmonic
What cardiac valve is most anterior?
tricuspid
What are the segments of the right upper lobe?
apical, posterior, anterior
What are the segments of the right middle lobe?
lateral, medial
What are the segments of the right lower lobe?
superior, antero-basal, medial-basal, lateral, posterior
What are the segments of the left upper lobe?
apical-posterior, anterior
What are the segments of the lingula?
superior, inferior
What are the segments of the left lower lobe?
superior, antero-medial basal, posterior, lateral
What is the most common pulmonary vein anomaly?
Separate vein draining the right middle lobe
What is an interrupted left PA associated with? 2
TOF and truncus
What does strep pneumo look like?
lobar consolidation
bulging fissure=
klebsiella
What does legionella look like?
peripheral and sublobar opacity
What does actinomyces look like?
peripheral opacity in lower lobes
What does mycoplasma look like?
patchy opacity w/ tree in bud
What infections are seen with CD 4 > 200
bacterial infections and TB
What infections are seen with CD 4< 200
PCP, atypical mycobacterial
What infections are see with CD 4 <100
CMV, disseminated fungal, mycobacterial
GGO in AIDS?
PCP
AIDS +lung cysts=
LIP
hypervascular lymph nodes + AIDS= 2
castleman + kaposi
At what CD 4 count is reactive TB seen?
> 200
At what CD 4 count is primary progressive TB seen?
<200
What are the features of hypersensitivity pneumonitis?
GG centrilobular nodules
Two signs in invasive aspergillus?
air crescent, halo
Sign in hyper immune ABPA?
finger in glove
Influenza on CT
coalescent lower lobe opacity
SARS on CT
lower lobe GGO
Varicella on CT
peripheral nodular opacities, become calcified
What met type might popcorn and central calcifications been seen?
GI cancer
Solid calcs seen in what met?
osteosarcoma
Ectopic PTH seen in which cancer type
squamous
SIADCH and ACTH seen in which cancer type?
small cell
What qualifies as stage T3b small cell cancer? 3
same lung but different lobes; SC, scalene or contralateral mediastinal or hilar adenopathy; malignant pleural effusion
What NM test can be done to evaluate for bronchopleural fistula?
xenon
Cannonball mets from which two?
renal cell or choriocarcinoma
What is the most common bronchial gland tumor?
adenoid cystic (cylindroma)
Which type of lymphoma most commonly involves the lungs?
Hodgkins
What is PTLD?
B cell lymphoma- nodules/mass, halo sign, septal thickening
At what CD 4 is AIDS related lymphoma seen?
<100
What is gallium avid- kaposi or lymphoma?
lymphoma
What is thallium avid- kaposi or lymphoma?
kaposi and lymphoma
When is a pulmonary AVM treated?
when afferent vessel >3mm
What does a persistent left SVC drain into?
coronary sinus
What is the most common venous anomaly in the chest?
persistent left SVC
How does an intralobar sequestration present?
in adolescence with recurrent pneumonias
How does an extralobar sequestration present?
in infancy
Where does an intralobar sequestration most commonly occur?
posterior segment LLL with own pleural covering
Type 1 CCAM=
cystic
Type 3 CCAM=
solid