Читать книгу Salivary Gland Pathology - Группа авторов - Страница 83

The minor salivary glands are unevenly distributed throughout the upper aerodigestive tract and are submucosal in location. They are more concentrated in the oral mucosa where they inhabit the mucosa of the hard and soft palate, buccal mucosa, floor of mouth, as well as the mucosa of the lips, gingiva, and tongue. They are also found in the pharynx (nasal and oral), sinonasal spaces, larynx, trachea, and bronchi. Functionally, they are either mucinous (predominantly in the palatal mucosa) or mixed seromucinous glands. The serous minor salivary glands are found only on the tongue at the circumvallate papilla. The minor salivary glands do not have large defined ducts but do contain multiple small excretory ducts. MRI of minor salivary glands has been achieved with high‐resolution surface coils of the upper and lower lips. Patients with Sjogren disease had smaller gland area relative to normal, best demonstrated in the upper lip (Sumi et al. 2007).