Key result
SVC obstruction combined with cortisol excess does not always stem from small-cell carcinoma.
Why the study?
Superior vena cava obstruction is classically associated with bronchial carcinoma and ectopic ACTH production in cortisol excess, but clinical features may not always reflect the underlying pathology.
Highlights a rare or atypical cause of superior vena cava obstruction presenting with cortisol excess, mimicking small-cell carcinoma.
Diagnostic assumptions may mislead in SVC obstruction with hypercortisolism; leaves open need for histologic confirmation beyond classical associations.
Superior vena cava obstruction has a classical association with bronchial carcinoma. In the presence of cortisol excess, the diagnosis of small-cell carcinoma and ectopic ACTH production seems likely. We present a case where the clinical features did not accurately reflect the underlying pathology.
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Jamieson et al. (2001) studied this question. Superior vena cava obstruction combined with cortisol excess may not always be caused by the classically expected underlying pathology of small-cell carcinoma.
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