Diagnosis and management of congenital floor of mouth masses: A systematic review

Co-existence of Congenital Epidermoid Cyst and Ranula in a Newborn. Report of a Unique Case

Background

Congenital cystic swellings involving the floor of the mouth include various lesions such as developmental cysts (e.g., dermoid and epidermoid cysts), ranulas, vascular malformations etc. However, coexistence of such conditions, possibly with a cause-and-effect- relationship, is rare. The purpose of this case report is to present a rare case of a congenital epidermoid cyst associated with a mucous retention cyst in a newborn.

Methods

A 6-month-old female infant was referred to an Oral Medicine Clinic in Athens, Greece on October 2019 for evaluation of a swelling at the floor of the mouth, first noticed by her paediatrician just after birth. Clinically, a yellowish "pearly" nodule in close association with the orifice of the left submandibular duct, posteriorly transitioning to a diffuse bluish cystic swelling of the left floor of the mouth was observed. With a provisional diagnosis of a dermoid cyst and/or ranula, a surgical excision was performed under general anaesthesia.

Results

Histopathologically, a well-defined, keratin-filled, cystic cavity lined by orthokeratinized stratified squamous epithelium was observed in the anterior aspect while posteriorly and in close proximity, a dilated salivary duct lined by cylindrical, cuboidal or pseudostratified epithelium was noted. A final diagnosis of an epidermoid cyst intimately associated with a mucus retention cyst (ranula) of the submandibular duct was rendered.

Conclusions

The coexistence of two cystic lesions in the floor of the mouth with features of epidermoid and mucous retention cyst, respectively, is rare and its pathogenesis intriguing, especially in a newborn.

Heterotopic gastrointestinal cyst in the mandible of a young adult: A rare case-report from Syria

Heterotopic gastrointestinal cyst (HGC) is a rare entity in the head and neck region. The dorsal surface of tongue and the floor of the mouth is the most commonly affected sites and rarely affects bone. Histologic examination reveals a lesion resembling any part in the gastric tract; colonic, intestinal or gastric mucosa. We report a HGC presenting in a twenty-one-year-old Syrian female patient.

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To Document this kind of cases which is still not well recognized well in literature.

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Give full information about the case which may lead to identify any difference or tendency to occur in certain location that may vary among communities.

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That may lead to make this entity well known and encourage researches to study it on a long term to give specific follow up.