Calcified mesenteric lymph nodes are a common incidental finding on abdominal radiographs. These are asymptomatic and can be ignored.
Occasionally calcified lymph nodes overlie an area affected by pathological calcification. Comparison with old images, if available, and reference to the clinical context will help to determine the relevance of abdominal calcification.
The focus of calcification in this image was thought to be a gallstone, causing obstruction - 'gallstone ileus', but old images showed that the calcified node had not changed in appearance over many years.
In this case the cause of obstruction was found to be a caecal tumour.