LA pulm-cancers/nodules Flashcards
5 year survival rate for bronchogenic cancer
15%
SCLC
occurance rate, location, mets, tx
- Oat cell 25-35% cases
- AGGRESSIVE, prone to early mets, spreads early
- originate in CENTRAL bronchi and mets to regional lymphnodes
- chemo. rarely amenable to sx.
- Kulchitsky cells(dk blue cells)
**can secrete ADH and ACTH
- Kulchitsky cells(dk blue cells)
5 year survival rate for NSCLC
35-40%, grows slowly and amenable to surgery
squamous cell
occurance rate, location, dx
25-35% of cases.
bronchial in origin, it is a centrally located mass
hemoptysis so do a sputum cytology.
**hypercalcemia; keratin pearls
** Kulchitsky cells(dk blue cells)
SCLC
**hypercalcemia; keratin pearls
squamous cell
adenocarcinoma
occurance rate, location, dx
overall most common. 40%
arise from mucous glands, usually appears on PERIPHERAL
cannot do a sputum cytology
**NON SMOKERS, clubbing
bronchoalveolar subtype
from adenocarcinoma. low grade.
CXR has hazy infiltrates. Good prognosis.
large cell carcinoma
characteristics, location, dx
10%
rapid doubling time; mets early; poor prognosis
central or peripheral mass
do cytology
do surgery. less responsive to chemo
**polymorphic giant cells, secrete b HCG(gynocomastia)
**polymorphic giant cells, secrete b HCG(gynocomastia)
large cell carcinoma
which cancers are central
squamous and small cell
lung cancer mets locations
LABB: liver, adrenal, brain, bone
bronchial carcinoid tumor
prognosis, mets, sx
good prognosis and mets rare.
carcinoid syndrome
** nests of neuroendocrine cells
** nests of neuroendocrine cells
bronchial carcinoid tumor
carcinoid syndrome
flushing, diarrhea, tachycardia, bronchoconstriction, hypoTN
think bronchia carcinoid tumor
S/S of lung cancer
symptoms: new or changing cough, hemoptysis, pain, anorexia, wt loss, athenia, night sweats, resistant pneumonia
signs: lymphadenopathy, hepatomegaly, clubbing
* paraneoplastic syndromes 10-20%
tests to order for lung cancer dx
CXR, CT, cytologic exam of sputum,
bronchoscopy and central biopsy, exam of pleural fluid
*FNA if peripheral
horner’s syndrome
apical pancoast tumor compresses sympathetic trunk, ptosis, miosis, facial anhidrosis
lung ca FEV1 and ratio
both low
solitary nodule in non smoker screening
CT every 6 months for 2 years
low dose CT scan annual screening for who
ages 55-74, 30 pack/yr, quit smoking in the last 15 years
stages TMN
tumor size, mets, node
stage 1 tx
only lung: resection and radiation (75% survival)
stage 2 tx
lung and hilar nodes: resection and chemoradiation (50% survival)