Pulmonary Neoplasms Flashcards
what are 3 characteristics of a pulmonary nodule?
< 3 cm
isolated
round
what is the first step in evaluating malignancy for a pulmonary nodule?
review old imagining to estimate doubling time
what doubling time of a pulmonary nodule suggests infection?
<30 days
what doubling time of a pulmonary nodule suggests long-term stability and benign status?
> 465 days
what is the 2nd step in evaluating malignancy for a pulmonary nodule?
evaluate nodule in current imaging
what pulmonary nodule size has an 80% risk in malignancy?
21-45 mm
what diagnostic should be done on all patients with a pulmonary nodule?
chest CT
what is the treatment/evaluation for a nodule that has <5% probability of malignancy?
regular imaging studies to monitor
what size nodule without risk factors for malignancy does not require follow up?
< 6mm
what are 3 diagnostics that can be done for a nodule that has 5-60% probability of malignany?
biopsy via transthoracic needle aspiration
sputum cytology
PET scan
what kind of lesions is a sputum cytology used for?
central lesions
what does a PET scan detect in pulmonary nodules?
increased metabolism in malignant lesions
what does a positive PET scan require?
removal
what does a video-assisted thoracoscopic surgery do for a pulmonary nodule?
removes nodule and evaluates it in OR with frozen section for malignancy and staging
what is the treatment/evaluation for a nodule that has >60% probability of malignancy?
immediate resection and tumor staging
tumor found in the central bronchi of the lungs
carcinoid tumor
what is carcinoid syndrome?
Cramping/diarrhea
Asthmatic wheezing
Right-sided hypotension
Cutaneous flushing
a patient presents with cough, focal wheezing, and recurrent lung infections. what are they suspicious for?
carcinoid tumor
what are complications of a carcinoid tumor?
local bleeding
airway obstruction
what is the management for a carcinoid tumor?
only removed if clinically symptomatic
what is characteristic of a carcinoid tumor?
grow slowly
rarely metastasize
lung cancer that arises from bronchial epithelium and often present as an intraluminal mass
squamous cell carcinoma
lung cancer that arises from mucous glands within or distal to the terminal bronchioles and affects lung parenchyma
adenocarcinoma
lung cancer that spreads along preexisting alveolar structures without evidence of invasion into parenchyma
adenocarcinoma in situ