PMID: 8600955Mar 1, 1996Paper

Petrous bone extension of middle-ear acquired cholesteatoma

Acta Radiologica
Y RobertL Lemaitre

Abstract

To describe CT and MR features of extension to the petrous bone, which is a rare complication of acquired cholesteatoma (AC). Postcontrast CT was performed in 4 patients, in axial (n=4) and coronal planes (n=2). The section thickness was 1.2 or 2.5 mm. MR was performed in 3 cases, using T1- and T2-weighted images (n=3) and postcontrast T1-weighted images (n=2). CT demonstrated a well-outlined lesion involving the petrous bone (n=4). Density could be assessed in 3 cases, showing a hypodense unenhanced mass. Lateral (n=1), superior (n=2), and posterior (n=2) semicircular canals were affected in 3 patients. AC extended to the vestibula, cochlea, and internal acoustic meatus (IAM) in 3 patients. Two ACs extended to the level of IAM, whereas 2 extended further, to the petrous apex. In one case the sphenoid sinus was affected. On MR imaging the lesion was hypointense relative to brain on T1-weighted images and hyperintense on T2-weighted images. MR imaging helped to delineate the lesion and to distinguish it from other cystic lesions of the petrous bone. CT and MR offer accurate preoperative assessment of the extension of cholesteatoma, which helps to choose the surgical approach.

References

Feb 1, 1979·The Journal of Laryngology and Otology·H L DeLozierR R Gacek
Jul 1, 1977·The Annals of Otology, Rhinology, and Laryngology·W W Montgomery
Nov 1, 1992·The Journal of Adolescent Health : Official Publication of the Society for Adolescent Medicine·C A HickeyM L Blankson
Dec 1, 1992·The Laryngoscope·M D AtlasD G Hardy
Dec 1, 1991·The Journal of Laryngology and Otology·B LaskiewiczL Michaels
Oct 1, 1991·Archives of Otolaryngology--head & Neck Surgery·D M ToriumiE A Wang
Nov 1, 1988·The Annals of Otology, Rhinology, and Laryngology·P G SmithG R Kletzker
May 1, 1985·Journal of Computer Assisted Tomography·D W JohnsonC E Stewart
Apr 1, 1971·The Annals of Otology, Rhinology, and Laryngology·M Abramson, J Gross
Nov 1, 1969·The Laryngoscope·G Schechter
Sep 1, 1983·Radiology·D W JohnsonR Canalis
Sep 1, 1980·Clinical Radiology·P D Phelps, G A Lloyd
May 1, 1982·Archives of Otolaryngology·E W Kreutzer, G B DeBlanc

❮ Previous
Next ❯

Citations

Sep 26, 2015·Indian Journal of Otolaryngology and Head and Neck Surgery : Official Publication of the Association of Otolaryngologists of India·Pritam ChatterjeeRamen Talukdar
Jan 14, 2005·Annals of Saudi Medicine·Joselito L Gaurano, Ismail A Joharjy
Apr 2, 2010·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Luiz G Silveira FilhoMarc T Williams

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Lin chuang er bi yan hou ke za zhi = Journal of clinical otorhinolaryngology
Shouling DingYuanping Ding
Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology, head, and neck surgery
Shaoxing ZhangHaibo Wu
Journal of Neuroradiology. Journal De Neuroradiologie
H W HusstedtH Becker
© 2021 Meta ULC. All rights reserved