Biomaterial Database

[Dislocations and fractures of the ossicles--high resolution computerized tomography of the petrous bone]. 1988

M Grobovschek, and G Oberascher

Röntgenabteilung der Landesnervenklinik Salzburg.

As in traumatology of the head the HR-CT of the injured petrous bone is now the imaging method of choice. With axial and coronary slices one can show not only the different parts of the ear but also the course of the facial nerve and particularly the ossicles in the tympanon. The fractures are nice to show, also the soft tissue lesions like brainprolaps in the tympanon or hematotympanon because of the better density resolution in comparison to the conventional tomography with rather higher radiation dose especially for the eye lenses. Important are the slice thickness of 1.5 mm with special examination technique, that also small fractures of the pyramid particularly the labyrinthous organ and of the ossicles mostly associated with dislocations are detectable. Regarding that with the clinical possibilities there are particular consequences for the otosurgeon. The ossicular dislocations of other than traumatic cause are rare.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D002558	Cerebrospinal Fluid Otorrhea	Discharge of cerebrospinal fluid through the external auditory meatus or through the eustachian tube into the nasopharynx. This is usually associated with CRANIOCEREBRAL TRAUMA (e.g., SKULL FRACTURE involving the TEMPORAL BONE;), NEUROSURGICAL PROCEDURES; or other conditions, but may rarely occur spontaneously. (From Am J Otol 1995 Nov;16(6):765-71)	Cerebrospinal Otorrhea,Cerebrospinal Fluid Otorrhea, Post-Traumatic,Cerebrospinal Fluid Otorrhea, Spontaneous,Cerebrospinal Fluid Otorrhea, Traumatic,Otorrhea, Cerebrospinal Fluid, Post-Traumatic,Otorrhea, Cerebrospinal Fluid, Spontaneous,Otorrhea, Cerebrospinal Fluid, Traumatic,Otorrhea, Post-Traumatic, Cerebrospinal Fluid,Otorrhea, Spontaneous, Cerebrospinal Fluid,Otorrhea, Traumatic Cerebrospinal Fluid,Post-Traumatic Cerebrospinal Fluid Otorrhea,Post-Traumatic Otorrhea, Cerebrospinal Fluid,Spontaneous Cerebrospinal Fluid Otorrhea,Spontaneous Otorrhea, Cerebrospinal Fluid,Traumatic Cerebrospinal Fluid Otorrhea,Traumatic Otorrhea, Cerebrospinal Fluid,Cerebrospinal Fluid Otorrhea, Post Traumatic,Cerebrospinal Fluid Otorrheas,Otorrhea, Cerebrospinal,Otorrhea, Cerebrospinal Fluid,Post Traumatic Cerebrospinal Fluid Otorrhea,Post Traumatic Otorrhea, Cerebrospinal Fluid
D004204	Joint Dislocations	Displacement of bones from their normal positions at a joint.	Inferior Dislocation,Joint Subluxations,Luxatio Erecta,Dislocation, Joint,Dislocations, Joint,Inferior Dislocations,Joint Dislocation,Joint Subluxation,Subluxation, Joint,Subluxations, Joint
D004429	Ear Ossicles	A mobile chain of three small bones (INCUS; MALLEUS; STAPES) in the TYMPANIC CAVITY between the TYMPANIC MEMBRANE and the oval window on the wall of INNER EAR. Sound waves are converted to vibration by the tympanic membrane then transmitted via these ear ossicles to the inner ear.	Auditory Ossicles,Auditory Ossicle,Ear Ossicle,Ossicle, Auditory,Ossicle, Ear,Ossicles, Auditory,Ossicles, Ear
D005158	Facial Paralysis	Severe or complete loss of facial muscle motor function. This condition may result from central or peripheral lesions. Damage to CNS motor pathways from the cerebral cortex to the facial nuclei in the pons leads to facial weakness that generally spares the forehead muscles. FACIAL NERVE DISEASES generally results in generalized hemifacial weakness. NEUROMUSCULAR JUNCTION DISEASES and MUSCULAR DISEASES may also cause facial paralysis or paresis.	Facial Palsy,Hemifacial Paralysis,Facial Palsy, Lower Motor Neuron,Facial Palsy, Upper Motor Neuron,Facial Paralysis, Central,Facial Paralysis, Peripheral,Facial Paresis,Lower Motor Neuron Facial Palsy,Upper Motor Neuron Facial Palsy,Central Facial Paralyses,Central Facial Paralysis,Facial Palsies,Facial Paralyses, Central,Facial Paralyses, Peripheral,Palsies, Facial,Palsy, Facial,Paralyses, Central Facial,Paralyses, Facial,Paralyses, Hemifacial,Paralysis, Central Facial,Paralysis, Facial,Paralysis, Hemifacial,Paralysis, Peripheral Facial,Pareses, Facial,Paresis, Facial,Peripheral Facial Paralysis
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293	Adolescent	A person 13 to 18 years of age.	Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults