round to oval sores inside the mouth. They may be white, yellow or grey in the centre and have a red border. They are commonly located on the insides of the cheek (buccal mucosa), tongue ...

Such cases are difficult to differentiate from hyperparathyroidism with peptic ulcer, complicated by nephrocalcinosis ... gingiva and buccal mucosa. The stool guaiac test for occult blood was ...