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Case Reports
. 2011:2011:362170.
doi: 10.1155/2011/362170. Epub 2011 Sep 14.

Dermoid cysts of the floor of the mouth: two case reports

Christos Makos  1 , George Noussios, Marinos Peios, Spyridon Gougousis, Pantelis Chouridis
Affiliations
Case Reports

Dermoid cysts of the floor of the mouth: two case reports

Christos Makos et al. Case Rep Med. 2011.

Abstract

Dermoid cysts in the floor of the mouth may be congenital or acquired. The congenital form, according to the main theory, originates from embryonic cells of the 1st and 2nd branchial arch. The acquired form may be due to traumatic or iatrogenic causes and as a result of the occlusion of a sebaceous gland duct. Its occurrence is less and is estimated to be from 1.6 to 6.4% of the dermoid cysts of the body in adults and 0.29% of the head and neck tumors occurring in children. They may also be classified as anatomical and histological. Anatomically, they are divided into median genioglossal, median geniohyoid, and lateral cysts, while histologically they are divided into epidermoid, dermoid cysts and teratomas. Clinically, a distinction between supra and inferior type as well as between central and lateral type is proposed in relation to themylohyoidmuscle and themidline, respectively. Histologically, an estimation of dermoid, epidermoid, and teratoid cysts is reported. Enucleation via intraoral and/or extraoral approach is the method of treatment. Two case reports of dermoid cysts in the floor of the mouth are presented in this paper, and an evaluation with regard to pathology, clinical findings, differential diagnosis, and treatment is discussed.

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Figures

Figure 1
Figure 1
The semihard, painless, slowly evolving augmentation in the submental area.
Figure 2
Figure 2
The (ECHO) ultrasonic scan of the area showing a sizeable infrasonic formation with distinct boundaries.
Figure 3
Figure 3
The computed tomography (CT) of the submental area showing a semitransparent cystic formation with distinct boundaries.
Figure 4
Figure 4
The scintiscan of the area with a Tc99m showing no evidence of the existence of ectopic thyroid tissue.
Figure 5
Figure 5
The macroscopic image of the surgical l extract with clear evidence of cystic formation (6,5 cm) containing smegma and hairs, indicative of a dermoid cyst.
Figure 6
Figure 6
Cyst with keratinized squamous epithelium and adnexal structures in wall.
Figure 7
Figure 7
The augmentation in the floor of the mouth due to the intraoral projection of the augmentation.
Figure 8
Figure 8
Keratinizing squamous epithelium with distinct granular layer with a sebaceous gland in the cyst wall.
Figure 9
Figure 9
The (ECHO) ultrasonic scan of the area showing a sizeable infrasonic formation with distinct boundaries.
Figure 10
Figure 10
Section of computed tomography (CT) showing a sizeable cystic formation with distinct boundaries.
Figure 11
Figure 11
The scintiscan of the area with a Tc99m showing no evidence of the existence of ectopic thyroid tissue.
Figure 12
Figure 12
The macroscopic image of the surgical extract showing the cystic formation (5,4 cm) of our second case.
See this image and copyright information in PMC

References

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