Giant cell tumor (GCT) is classified as a benign bone tumor, and it is frequently identified at the epiphysis of long bones and relatively rare in the temporal bone. For orthopedists expert at recognizing bone and soft tissue tumors, the diagnosis of GCT is relatively easy; however, since head and neck surgeons experience few cases of GCT, it may be difficult to diagnose when it occurs in the t...

Importance. Superior semicircular canal dehiscence (SCD) is a third window lesion of the inner ear causing symptoms of vertigo, autophony, tinnitus, and hearing loss. A "two-hit" hypothesis has traditionally been proposed, whereby thinly developed bone overlying the superior canal is disrupted by a sudden change in intracranial pressure. Although the symptoms of SCD may be precipitated by head ...

Giant cell tumors (GCT) of the bone are uncommon primary bone neoplasms that occur mainly in the epiphyses of long bones. However, GCT with tumoral growth in the cranium is rarely encountered, particularly in the temporal bone. GCT demonstrates benign histological features but is locally aggressive, and surgical excision is the treatment of choice. The authors describe a 31-year-old man who pre...

OBJECTIVE This study performed volumetric analysis and classified different repeated patterns of temporal bone pneumatization in adults using cone beam computed tomography (CBCT) scans. STUDY DESIGN A total of 155 temporal bones were retrospectively evaluated from 78 patients with no radiographic evidence of pathology. Two reference structures were used to classify temporal bone pneumatizatio...

UNLABELLED Human temporal bones in teaching ear surgery are rare. The lamb's temporal bone might be a possible alternative. MATERIAL AND METHODS Temporal bones of the lamb were dissected with a typical temporal bone lab drilling program. We included a mastoidectomy, endaural approaches, but also analyzed the outer appearance, the external ear canal and the hypotympanon. Some steps differed fr...

Inner ear anomalies are a rare but important cause of sensorineural hearing loss. Combined external and middle ear anomalies are more common, causing conductive hearing loss and cosmetic deformity. The course of the facial nerve canal is altered in many temporal bone anomalies. Its location is of great importance when surgical therapy is anticipated. Vascular anomalies and bone dysplasias occas...

Metastatic temporal bone tumors are rare, and tend to be asymptomatic. The clinical symptoms consist of aural discharge, bleeding, hearing loss and facial nerve paresis. The most common origin of the metastasis is breast cancer, and other sites of the primary tumor include the thyroid gland, brain, lungs, prostate and blood. Clinical reports of hearing loss due to gastric cancer metastatic to t...

NF2 gene – Chr 22 VHL (Von Hippel Lindau) disease – Chr 3p Ionizing radiation Criteria for radiation induced temporal bone tumours by LUSTIG is as follows : 1. • The second neoplasm must develop in the irradiated field. 2. • A latent period of at least several years must elapse between radiation exposure and the development of a second primary. 3. • The previous condition must show histological...

MR imaging continues to make remarkable advances, often beyond our wildest dreams. As these advances occur, I am reminded continually of the importance of technology in determining how we practice medical imaging. It is obvious that most of the pertinent anatomy and diseases of the nervous system as well of those of the head and neck region primarily involve soft tissues. Only rarely do neurolo...