• 1 Universiti Sains Malaysia
  • 2 Hospital Taiping


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.