Up to now, histochemical investigations of the goblet cells found in cases of postoperative maxillary cysts (POMC) have yielded somewhat variable results, while examinations of glycoproteins have been restricted to only a few methods. Recently, lectins, which have specificity for various carbohydrate residues, have been applied for the detection of glycoproteins. However, as far as the author is aware, no studies of POMC using lectin histochemistry have been done. Accordingly, PAS-alcian blue (pH 2.5) staining was performed on POMC with special reference to goblet cells, and then lectin histochemistry was employed. The specimens examined were sixty cases of POMC, which were obtained from the