Plunging epidermoid cyst of the floor of mouth is indeed an uncommon entity. A 34-year old Malay gentleman had presented to our centre with a floor of mouth lesion that extended into the submental region. Clinical findings and imaging studies pointed towards the impression of a plunging ranula. Histopathological examination of a completely excised mass via intraoral approach, confirmed the diagnosis of an epidermoid cyst. He was well on follow up with no subsequent recurrence. We discuss the nature of epidermoid cyst and its surgical management.
Epidermal Cyst

Mucoepidermoid carcinoma (MEC) of the thyroid gland either primary or metastatic is extremely rare. However, MEC is the most common malignant tumour of the salivary glands with the majority originating from the parotid gland. We report the case of a 54-year-old Malay lady who presented with recurrent MEC affecting the thyroid gland two years after being treated for primary parotid MEC.