Canalicular AdenomaPanopio, Kathleen Cay M.DMD-3BB

Canalicular Adenoma

Type of benign salivary gland tumor occurs most often in minor salivary glands.

Grouped in the category of monomorphic adenoma.

Canalicular Adenoma

Composed of columnar epithelial cells arranged in single or double layer forming branching chords.

LocationMinor salivary glands Buccal

mucosa

Labialmucosa

Lingualmucosa

Soft Palate

Lateral portionof Hard Palate

Floor of theMouth

LocationMinor salivary glands

Oropharynx

Paranasal

Sinonasal

LocationMinor salivary glands

Upper Lip (81%)Buccal MucosaPalateLower Lip

MAJOR

Major Salivary Glands

CAUSE: Unknown

AGE: Adult; older than 50 years old

GENDER: Female

Clinical Features:Rounded massFirm but movable

Clinical Features:Slow-growingAsymptomatic

Clinical Features:COLOR: normal; bluish

HISTOPATHOLOGYBilayered strands of basaloids cells that branch and anastomoses within a delicate stroma

Highly vascular

Contains: FEW fibroblasts; LITTLE collagen

HISTOPATHOLOGY

Individual cells= columnar with moderate to abundant amounts of eosinophilic cytoplasm

HISTOPATHOLOGY

May not be totally encapsulated

20% cases= multifocal

TreatmentSurgical excision (inclusion of a cuff of clinically normal tissue)

PrognosisGood. 20% multifocal, recurrence may occur