Exam 3: The Thorax Handout Part 3
Home > Preview
The flashcards below were created by user
on FreezingBlue Flashcards.
What is the most common cancer in men?
What are the major causative facotrs for bronchogenic carcinoma?
cigarette smoking and urban living
Where do the tumors from bronchogenic carcinoma metastasize? Why
- to pleurae, hila of lungs, and mediastinum and from them to other parts of body (including skull/brain)
- because of arrangement of lymphatics
Tumorous involvement of phrenic N may result in what?
paralysis of half of respiratory diaphragm
What happens because of the intimate relationship of recurrent laryngeal N to apex of lung?
N may be involved in apical lung cancers
What are the results of apical lung cancers?
hoarseness, owing to paralysis of vocal fold (cord), because N supplies all but one of laryngeal mm
Where does involvement of hilar and mediastinal lymph nodes occur?
by lymphogenous spread of cancer cells
Lymph from entire R lung drains into what?
tracheobronchial lymph nodes on R side
Most lymph from L lung drains into what?
tracheobronchial lymph nodes of L side
Lymph from lungs drain into the venous system via what?
R/L bronchomedastinal trunks
Since the lymph from lungs drains into venous system, the lymph may carry cancer cells into what?
- veous systme
- R atrium of heart
After passing through pulmonary circulation, blood and cancer cells return to heart and are distributed to what?
Where are common sites of hematogenous metastasis of cancer cells from bronchogenic carcinoma?
- suprarenal (adrenal) glands
How do tumor cells most likely eter the systemic circulation?
passing through capillary/venule in lung, and transported via pulmonary veins, L heart, and aorta
When would lymph nodes superior to clavicle become enlarged and hard?
w/ CA of bronchus, owing to metastases from primary tumor
Supraclavicular lymph nodes are commonly referred to as what? Why?
- sentinel lymph nodes
- b/c enlargement alerts examiner to possibility of malignant disease in thoracic/abdominal organs
Home > Flashcards > Print Preview