Sialolithiasis

Sialolith salivary stone

As Sialolithiasis is called the salivary stone formation in analogy to urolithiasis and cholelithiasis, which restricts the outflow of saliva and favors a secondary inflammation.

Etiology and pathogenesis

The cause is still unknown. Predisposing factors are metabolic disorders with increasing the concentration of calcium in saliva, inflammatory changes and secretion drainage disabilities. Thus, in the submandibular gland appear to play a role in the long and tortuous course of the ductal and the relatively viscous secretions in the development of salivary stones. Salivary stones are therefore most frequently located in the submandibular gland (about 83 %), far more rare in the parotid gland (10%) and in the sublingual gland ( 7%). Lips and cheek are preferred localization of salivary stones of small glands.

Morphology

The stones consist of a central organic matrix with concentric deposits, mainly of calcium phosphate.

Clinic / symptoms

It show up Gangektasie and periductal inflammation with food -dependent, often painful swelling.

Complications

Secretion obstruction, ascending inflammation and fistula formation in the oral cavity or skin.

Swell

• Pfaltz M, Jundt: Mouth, teeth and salivary glands. In: Pathology, 3rd ed Böcker W, Brain H, Heitz Ph.U (ed.). Elsevier, Munich, Jena 2004, page 653

• Disease in the ear, nose and throat medicine