12 Questions
What is the incidence of incidentally found adrenal lesions in the general population undergoing CT imaging?
Up to 4%
In which age group do adrenal incidentalomas have the peak incidence?
6th and 7th decades
What percentage of adrenal incidentalomas are nonfunctioning?
80%
Which of the following is not a possible etiology of adrenal incidentalomas?
Thyroid cancer
What is the usual size for most primary adrenocortical carcinomas?
>6 cm
How much growth over a period of 3 to 6 months might raise suspicion for an adrenal lesion being an adrenocortical carcinoma?
>0.5 to 1 cm
Which imaging modalities are commonly used to detect adrenal incidentalomas?
CT and MRI
What is the predominant type of adrenal lesion found incidentally?
Nonfunctioning benign adrenocortical adenoma
What is the gender predilection for adrenal incidentalomas?
More common in women
What percentage of adrenal incidentalomas are bilateral?
~10%
Which etiology of adrenal incidentalomas is most commonly functioning?
Pheochromocytoma
At what rate of growth over 3 to 6 months might an adrenal lesion be suspected as an adrenocortical carcinoma?
>0.5 cm growth
Learn about the characteristics of adrenal incidentalomas, which are adrenal lesions found incidentally on imaging in a small percentage of the population. Discover their types, functioning, and prevalence in different age groups.
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