Abstract
A man aged 53 years visited our clinic with a swelling of the hard palate. Brownish liquid was obtained by an exploratory puncture and 30% Lipiodol was injected. X-ray examination demonstrated a cyst of the right maxilla. Follicular cyst or radicular cyst was suspected. The cyst was completely extirpated through an incision of the hard palate. Pathological findings were compatible with nasopalatine cyst. The cyst wall is lined with both stratified squamous epithelium and ciliated epithelium. Cysts occurring in the maxillary region are as follows;
I. Non-odontogenous cyst
1. Postoperative maxillary cyst
2. Mucous gland cyst of the maxilla
3. Maxillary sinus cyst
4. Naso-alveolar cyst
5. Globulo-maxillary cyst
6. Nasopalatine cyst
II. Odontogenous cyst
1. Radicular cyst
2. Follicular cyst
3. Mayrhofer's cyst
4. Broca's cyst
5. Paradental cyst
6. Adamantinoma
