What is a typical radiological finding in sarcoidosis?

Hilar adenopathy is indeed a typical radiological finding in sarcoidosis. This condition is characterized by the abnormal growth of inflammatory cells, leading to the formation of granulomas in various organs, most commonly in the lungs. During imaging, particularly chest X-rays and CT scans, hilar adenopathy presents as enlargement of the lymph nodes located at the root of the lung. This finding is often associated with other pulmonary manifestations of sarcoidosis but is one of the most classic radiological indicators.

In contrast, pleural effusion is not a common finding in sarcoidosis. While it can occur, it is usually due to complications rather than being a defining feature of the disease. Cardiac enlargement as a primary finding is also uncommon; while sarcoidosis can affect the heart, leading to cardiomyopathy or conduction abnormalities, it is not typically seen in radiological studies as a standard finding. Lastly, an esophageal stricture is not a characteristic feature of sarcoidosis. Strictures can occur from a variety of other inflammatory processes but are not directly associated with the typical manifestations of sarcoidosis in imaging studies.