Diagnostisch-therapeutisches Management einer großen Epidermoidzyste des Mundbodens - Ein Fallbericht

Abstract

Dysontogenetic cysts should be considered in differential diagnosis of tumours of the floor of the mouth. Diagnostic and surgical management depends first of all on size and location of dysontogenetic cysts.

Dermoid Cysts of the Floor of the Mouth: Two Case Reports

“…The term “dermoid cyst” in the floor of the mouth is used to describe three types of histologically related cysts in this area: dermoid, epidermoid, and teratomata/teratoid cysts [1, 2]. Dermoid cysts in the floor of the mouth have been the subject of a considerable number of researches.…”

“…Of considerable assistance in the diagnosis of cysts in the floor of the mouth are the (ECHO) ultrasonic scan, the computed tomography (CT), the magnetic resonance imaging (MRI), and the scintiscan of the area [2, 7]. In the ultrasonic scan (ECHO), these cysts appear as infrasonic areas with ultrasonic elements; the computed tomography and magnetic resonance imaging specify their size and anatomical relationship, while the scintiscan helps in their differential diagnosis from the ectopic thyroid tissue.…”

“…The incidence of floor of the mouth cysts is quite less [5]. In a study carried out by Mayo Clinic (1937), in a total of 1495 dermoid cysts of the body, 103 (6.9%) concerned the head and neck and only 24 (1.6%) the floor of the mouth [6–9], even though these findings have been challenged on account of the high (44%) rate of hair follicle cysts [2, 6]. In another study [10], of a total of 541 evident dermoid cysts of the body, 184 (34%) occurred in the head and neck and 35 (6.5%) of these in the floor of the mouth.…”

Management and Follow-Up of Extensive Teratoid Cyst in Mouth Floor

“…Differential diagnosis should include developmental lesions, congenital, inflammatory and salivary gland lesions, lymphomas and benign tumors 6 . The differential diagnosis of teratoid cyst in the floor of the mouth includes thyroglossal duct cyst, ranula, cystic hygroma, branchial cleft cysts, benign mesenchymal tumors, benign and malignant salivary gland tumors, Hodgkin's disease and non-Hodgkin's lymphoma and infections 7 , 9 . The precise diagnosis of these diseases can be made after an appropriate clinical examination and imaging investigation 11 , 14 .…”

“…Most of the authors recommend conservative surgical removal, trying not to rupture the cyst, as the luminal contents may act as irritants to fibrovascular tissues, producing postoperative inflammation. Recurrence and malignant transformation of oral cysts are unlikely after treatment 8 , 9 .…”