AKA
- Sialo-Odontogenic Cyst
Incidence
- middle aged adults, mean age of 46 to 51 years of age. Rarely does it occur before the age of 20.
Clinical presentation
- Although it is generally accepted as being of odontogenic origin, it also shows glandular or salivary features. Cysts can vary from small lesions less than 1 cm to large destructive lesions that may involved most of the jaw. Small cysts can be asymptomatic. Larger cysts can result in expansion and be associated with paresthesia and pain.
Location
- 75% in mandible with predilection in anterior jaw. Mandibular lesions will cross midline.
Radiographic Features
- well-defined unilocular or multilocular lesion with a corticated rim
Histopathology
- Lined by cuboidal to columnar resulting in a papillary surface. Occasional contains cilia. Stains mucicarmine. Histologic overlap with low grade cystic mucoepidermoid carcinoma.
Treatment: Enucleation or curettage with 30% recurrence. Recurrence more frequent with multilocular lesion. Some advocate for en bloc resection of multilocular lesions. Marsupialization and decompression may be attempted for large lesions to promote shrinkage prior to surgery.
