Floor Mouth Dermoid

A 13 year old child developed fever and headache.

Floor mouth dermoid.

Cysts superficial to geniohyoid may cause posterosuperior displacement of the tongue dysphonia dysphagia 3 or airway obstruction 4. A ranula is a mucus retention cyst arising from a sublingual or minor salivary gland. Of the dermoid. Oral surg oral med oral pathol 1994.

The floor of the mouth is the part of the oral cavity that is located under the tongue. Dermoid cysts in the floor of the mouth may be congenital or acquired. Cystic lesions of the floor of the mouth are well recognised and can be congenital or acquired. Its occurrence is less and is estimated to be from 1 6 to 6 4 x25.

Floor of mouth dermoid cysts account for 1 6 of all dermoid cysts 2 and they usually present as a midline symmetrical slowly enlarging lesion. Generally they present during the 2nd 3rd decade of life with no sex preponderance 1 5. False sialoceles hydatid cysts and thyroglossal duct cysts 3. The lesion contained free calcified corpuscles i e the sack of marbles.

The mucosal surface of the floor of the mouth is easily examined clinically as superficial abnormalities can be assessed visually without the aid of imaging. The acquired form may be due to traumatic or iatrogenic causes and as a result of the occlusion of a sebaceous gland duct. A dermoid cyst in the floor of mouth accounts for 1 1 6 of all dermoid cysts 1 3 4. It may be involved in a wide range of pathologic processes some of which are unique to the region.

Clinically a cystic midline swelling moving with deglutition was palpable in the submental region with suspicious extension into sublingual space. Her parents noticed a swelling below the jaw and visited the physician. Dermoid cyst in the floor of the mouth final diagnosis. 7838461 2 potts m macleod ri mclean nr et al.

The congenital form according to the main theory originates from embryonic cells of the 1st and 2nd branchial arch. The main differential includes. We report a case of a dermoid cyst of the floor of the mouth in a 12 year old boy investigated with ultrasonography magnetic resonance imaging mri and non enhanced computed tomography ct scans. Dermoid cysts of the floor of the mouth are rare accounting for 11 of all dermoid cysts in the head and neck region.

The dermoid cysts of the mouth are most frequently located on the median line of the mouth floor most likely caused by the retention of the germinal epithelium during the growth of the mandible and hyoid branchial arches and are considered rare 2 3 5 10 although these lesions typically manifest during the second or third decade of life however may present since birth with. Dermoid cyst in the floor of the mouth. Dermoid cyst in the floor of the mouth references 1 king rc smith br burk jl. Ranula dermoid cysts and epidermoid cysts.