Tongue 2
Features consistent with a plunging (diving or cervical ) ranula.
The broad differential diagnosis includes:
abscess
oral cavity / parotid hemangioma
cystic hygroma
cysts (dermoid/epidermoid/ thyroglossal duct/ 2nd branchial cleft)
cystic/ necrotic lymph adenopathy
lipoma
necrotic oral cavity tongue malignancy
salivary gland tumors