Neoplasms Flashcards
what is the USPSTF recommendations for lung cancer screenings
Grade: B
Adults aged 50-80 years who have a 20 pack-year smoking history and currently smoke or have quit within the past 15 years.
what are ways that nodules can be defined
perifissural nodules
solid nodules
part solid nodules
non-solid nodules
endobronchial nodules
complete, central, popcorn, concentric, rings and fat containing nodules
What are the characteristics of Benign nodules
< 3cm (30mm)
solid nodules
Age < 30
non-smokers
dense central calcifications
well defined borders and no halo
round
doubling time >400 days
negative FH or personal hx of cancer
history of underlying lung disorder
what are characteristics of malignant nodules
> 3 cm (30mm)
sub-solid (ground glass or part solid)
age > 30
smokers
stippled or eccentric calcifications
irregular margins (spiculated or halo)
Cavitary with thick walls
lobular
doubling time < 400 days
located in upper lobes
postive FH or personal hx
+/- pervious underlying lung disorder
What are ways to determine benign vs malignant nodules
Brock Calculator
Mayo Clinic Risk calculator
What are solitary pulmonary nodules
primarily benign lung nodules
discrete, round and size < 3cm “aka coin lesion”
not fixed to pleura or chest wall
NO lymphadenopathy, infiltrate or atelectasis
what is any nodule > 3cm considered
a mass
Who do we often see solitary pulmonary nodules in
M>W but if looking at only non-smokers, W>M
more prevalent in high risk patients - smokers, COPD, older
incidental CXR + CT scans
what are benign solitary pulmonary nodules
infectious granuloma*
-atypical mycobacteria, coccidioidomycosis, histoplasmosis, TB
hamartoma
What are malignant solitary pulmonary nodules
adenocarcinoma
squamous cell carcinoma
solitary metastasis (breast, colon, kidney)
small cell carcinoma
What is the workup for solitary pulmonary nodules
if found on CT - no further images
if found on CXR - chest CT
+/- PET scan if concern for malignancy
chest CT preferred for follow-up imaging
Definitive diagnosis with biopsy
what is the most common etiology of solitary pulmonary nodule
Infectious granulomas
what makes a person at high risk for solitary pulmonary nodules
any history of smoking
+ FH lung CA
carcinogen exposure
upper lobe nodule
emphysema
pulmonary fibrosis
What is the Fleischner Guidelines used for
management of incidentally detected solid pulmonary nodules in adults + sub-solid nodules
What are traditional ‘lung’ cancers
bronchiogenic carcinomas
#1 cause of cancer deaths
what is the median age for bronchogenic carcinomas
median age: 70
rare prior to 40 years old
5 year survival rate about 19%
What are risk factors for bronchogenic carcinomas
secondary to smoking (85-90%)
+FH
pre-existing pulmonary disease (pulmonary fibrosis, COPD, sarcoidosis)
exposure-related risks (second hand, radon, asbestos, diesel exhaust, etc.)
what is the leading cause of preventable death in the US
cigarette smoking
causes more than 480,000 deaths each year
where else can smoking cause cancer in within the body
bladder
blood
cervix
colon and rectum
esophagus
kidney and ureter
larynx
liver
oropharynx
pancreas
stomach
trachea, bronchus and lung
what are the types of bronchogenic carcinomas
small-cell and non-small cell cancer types
what is another name for small-cell cancer
AKA ‘oat cell’
what are adenocarcinomas, squamous cell carcinomas, large-cell carcinomas part of
non-small cell cancer
what cells do small cell cancer affect
neuroendocrine cells