May Be Caused by

Abscess

Branchial cleft cyst

Cystic lymphoma

Cystic pleomorphic adenoma

Dermoid cyst

Hematoma

Lymphangioma

Lymphoepithelial cyst

Necrotic lymph node metastasis

Necrotic tumor

Primary salivary gland cyst

Retention cyst

Sialocele

Sjögren syndrome

Warthin tumor