A 45-year-old man develops facial swelling and breathlessness. His chest X-ray reveals paratracheal lymphadenopathy. Which of the following statements is most accurate regarding the superior vena caval obstruction?

it is associated with Kussmaul's sign

the most common cause is squamous cell carcinoma

treatment of choice is radiotherapy

it may be associated with voice hoarseness

the commonest symptom is stridor

A 45-year-old man develops facial swelling and breathlessness. His che

1.	A 45-year-old man develops facial swelling and breathlessness. His chest X-ray reveals paratracheal lymphadenopathy. Which of the following statements is most accurate regarding the superior vena caval obstruction?
A.	the most common cause is squamous cell carcinoma
B.	treatment of choice is radiotherapy
C.	it may be associated with voice hoarseness
D.	it is associated with Kussmaul's sign
E.	the commonest symptom is stridor
Answer» D. it is associated with Kussmaul's sign

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A 45-year-old man develops facial swelling and breathlessness. His chest X-ray reveals paratracheal lymphadenopathy. Which of the following statements is most accurate regarding the superior vena caval obstruction?

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