Lung 6 Flashcards
age range for lung cancer
40-70y
peak 50-60y
most common genetic mutation in lung cancer in non smokers
EGFR
rare genetic mutation in lung cancer of non smokers
KRAS
occasional genetic mutation in lung cancer of non smokers
TP53
cancer associated with ex smokers and non smokers
adenocarcinoma
cancer associated with current smokers
squamous cell
small cell
adenocarcinoma precursors
atypical adenomatous hyperplasia
adenocarcinom in situ
microinvasive
atypical adenomatous hyperplasia
adenocarcinoma precursor
adenocarcinoma in situ
adenocarcinoma precursor
>5mm
microinvasive adenocarcinoma
adenocarcinoma precursor
tumor
mucinous adenocarcinoma
spreads through air spaces and forms satellite tumors
grows along septa
worse prognosis
non mucinous adenocarcinoma
peripheral nodule
better prognosis
“butterflies on a fence”
adenocarcioma location
peripheral
adenocarcinomas marker
thyroid transcription factor 1
squamous cell carcinoma location
central
speed of adenocarcinoma growth
slow
speed of squamous cell carcinoma growth
fast
squamous cell carcinoma precursor
bronchial epithelium metaplasia/dysplasia
mutation associated with adenocarcinoma
KRAS
mutation associated with squamous cell carcinoma
FGFR, CDKN2A, TP53
adenocarcinoma growth pattern
along septa
squamous cell growth pattern
into air spaces creating obstruction
squamous cell carcinoma looks like
TB- areas of hemorrhage and necrosis with cavitation
cauliflower like intraparenchymal mass
PET positive tumor
squamous cell
histological findings for squamous cell
pink
keratin pearls
precursor lesion for small cell
diffuse idiopathic pulmonary neuroendocrine cell hyperplasia
location of small cell
central OR peripheral
most aggressive lung cancer
small cell
most likely to metastasize
small cell
cancers that are not curable surgically
squamous cell
small cell
most associated with paraneoplastic syndromes
small cell
histology for small cell
small blue cells
poorly defined boarders
little cytoplasm
high mitotic count
Azzopardi effect
vascular walls stain blue from the DNA released from necrotic cells
small cell markers
chromogranin
synaptophysin
CD56
worst type of cancer
small cell
small cell mutations
TP53
RB
MYC amplifications
squamous cell marker
PET positive
large cell carcinoma diagnosis
diagnosis of exclusion
all markers negative
location of large cell carcinoma
peripheral
secondary pathology 6
partial obstruction total obstruction impaired drainage pulmonary abscess SVC syndrome pericarditis/pleuritis
hypercalcemia is most associated with
squamous cell
paraneoplastic syndromes 6
ADH ACTH PTH calcitonin gonadotropins serotonin/bradykinin
Lambert-Eaton myasthenic syndrome
muscle weakness from autoantibodies against calcium channels
Trousseau syndrome
systemic presentation of lung cancer
DVT and thromboembolism
hypercoagulable state
hypertrophic pulmonary osteoarthropathy
systemic presentation of lung cancer
abnormal connective tissues
clubbing
Pancoast tumors and symptoms
apical tumors that compress neural structures around trachea
Horner’s syndrome + ulnar distribution pain
lung cancer metastis route
lymph
blood
lung cancer metastasis location
adrenal
liver
brain
bone
molecular pathway targets
EGFR ALK MET VEGF PD-L1
pulmonary hamartoma
benign, well circumscribed coin lesion
difference between secondary and primary lung cancer
secondary- multiple discrete mets
primary- single lesion
marker for asbestos exposure
fibrous pleural plaques
mesothelioma
asbestos related
pleura neoplasm
long latency- 25-45y
less likely than lung cancer after exposure
most common site of lung cancer metastasis
adrenal glands