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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The ossicular chain has been known for 500 years and yet there are a small number of morphometrical studies. We reviewed the whole literature that is available online regarding the human ossicular chain from an anatomist perspective and correlated the data from all the papers that showed any relevance. Inclusion and exclusion criteria were developed a priori. A thorough description of all ossicular differences has been made and we present their variations in dimensions trying to associate measurements obtained with race. This research included papers spreading on a horizon of over 50 years of worldwide experience. Statistical analysis revealed that there is a great difference in measurements and the results cannot be sufficiently associated. The explanation of this variation in the measurements obtained might be due to errors in the procedure. We conclude that ossicular chain reveals a great variety, and propose that a measurement protocol for auditory ossicles must be widely performed.

We present a case of small bowel stricture and obstruction with delayed and subtle presentation 3 months after a car accident. Such a presentation is a rare clinical entity. The most likely cause, supported by most authors, implicates an injury to the mesentery. Post-traumatic ischaemic bowel stenosis may result from even small tears and contusions. These lesions may cause partial thickness ischaemia of the bowel wall, with mucosal ulceration and submucosal inflammation and fibrosis, or may cause full-thickness ischaemia with fibrosis of all layers. Mesenteric tears or intramural haematomas have been found on close inspection of the specimens. Our case supports the mesenteric injury theory since there is the initial CT-scan proof of retroperitoneal and consequently, mesenteric haematomas. Regardless of the pathophysiology of this clinical entity, it is very important that the condition of post-traumatic small bowel stricture should be suspected when a patient experiences bowel obstruction weeks, or even years, after sustaining abdominal injury, especially in connection with a seat-belt injury.

IntroductionAlveolar soft tissue sarcoma of the tongue is a very rare and aggressive tumor which occurs in infancy with a relatively controversial histogenesis. It may mimic benign vascular neoplasms and may metastasize to the lungs, brain or bones.Case presentationWe present the case of a three-year-old Caucasian boy who was admitted to our department with a history of dysphagia and two episodes of oral bleeding which had lasted for a period of six months. A thorough histological examination together with imaging techniques form the basis of a reliable diagnosis.ConclusionAlveolar soft tissue sarcoma of the tongue is a rare tumor which occurs in infancy and which is often misdiagnosed pre-operatively. It should therefore be included in the differential diagnosis of oral pediatric lesions.