BACKGROUND The cervicomental (CM) angle is formed by the horizontal plane of the submental region and the vertical plane of the neck. OBJECTIVE To compare the 2-dimensional effect of 4 surgical techniques on the CM angle in a human cadaver model. DESIGN Anatomic presurgical and postsurgical comparative study performed on human cadavers preserved with ethylene glycol. SETTING Academic medi...

A 34-year-old man presented with tinnitus and conductive hearing loss. CT demonstrated an expansile, air-containing cavity contiguous with mastoid air cells, narrowing the external auditory canal. This is a case of symptomatic pneumocele resulting in an air collection beneath external canal lining, possibly related to an abnormality in mastoid fusion.

During a period of six years, eleven cases, (involving sixteen ears), of osteomyelitis temporalis chronica (otitis media in the broad sense) with cholesterin granuloma, accompanied by experimented studies of cholesterin granuloma in the tympanic cavity of rabbits were reported. Cholesterin granuloma appeared in the tympanic cavity of the rabbits after instilation of a 1 solution of oxalic acid ...

the author studied anatomical variations of the origin of the chorda tympani nerve from the mastoid portion of the facial nerve. the studies were performed on 200 specimens of human temporal bone. it was found that the chorda tympani may arise from the facial nerve in three levels: most commonly from the mid third of its mastoid segment (70%), less commonly from the proximal third (20%), and ve...

Malignancy of the middle ear and mastoid antrum is rare. These malignancies are less than 1%of all head-andneck malignancies. Squamous cell carcinoma is the most common among all malignant tumours. Squamous cell carcinoma of the middle ear and chronic suppurative otitis media may co-exist but no definitive correlation has been proven. Here we are presenting a case of squamous cell carcinoma of ...

To further elucidate nuances of bone-conduction (BC) stimulation, particularly as they may pertain to BC-elicited auditory brainstem responses (ABRs), real head measurements were made of vibratory responses to BC clicks. A miniature accelerometer was held firmly against the skull near a bone vibrator applied to the mastoid, to the opposite mastoid, and to the forehead. Measurements also were ma...

It is well known that the skull provides elements for sex identification. Twenty-two bones form the cephalic cranium and they are divided into neurocranium and splancnocranium. This research aimed to study different characteristics between skulls from both sexes by evaluating the following measurements: mastoid notch to incisive foramen (right and left side); mastoid notch to mastoid notch; and...

BACKGROUND Cerebral arteriovenous malformations (AVMs) are dynamic lesions and have been documented to arise de novo, enlarge, regress, obliterate, and even recur. Spontaneous obliteration of AVM is a rare and poorly understood phenomenon. CASE DESCRIPTION We present a case of spontaneous obliteration of AVM in a 60-year-old gentleman who presented with intraparenchymal hemorrhage from a rupt...

Introduction: In 2016, a new approach to endodontics using CAD/CAM printed guides or splints emerged, mostly in pieces with pulp obliteration. Objective: To analyze the literature on some current endodontic techniques for treatment of obliteration, such as static guided endodontics, dynamic and microsurgery. Methodology: PubMed, SCOPUS Google Scholar databases were reviewed find recent articles...