scholarly journals Petromastoid canal

2013 ◽  
Author(s):  
Henry Knipe ◽  
Ayush Goel
Keyword(s):  
Petromastoid Canal

Congenital Cerebrospinal Otorrhea

1979 ◽  
Vol 88 (3) ◽  
pp. 358-365 ◽  
Author(s):  
Richard R. Gacek ◽  
Bruce Leipzig
Keyword(s):  
Cerebrospinal Fluid ◽  
Initial Segment ◽  
Congenital Defects ◽  
Facial Canal ◽  
Cerebrospinal Fluid Fistula ◽  
Fallopian Canal ◽  
Cochlear Aqueduct ◽  
Cerebrospinal Fluid Leaks ◽  
Fluid Fistula ◽  
Petromastoid Canal

Four locations for congenital cerebrospinal fluid fistula in the region of a normal labyrinth are reviewed. A congenital leak may occur through the petromastoid canal, a wide cochlear aqueduct, Hyrtl's fissure, or the facial canal. A fistula through the initial segment of the fallopian canal was successfully repaired in a two-year-old boy who had three episodes of meningitis following otitis media. Knowledge of these four sites of congenital defects provides a guideline for the surgeon in the identification and repair of cerebrospinal fluid leaks in the region of the labyrinth.

The petromastoid canal in the young child: Appearance on computed tomography

2013 ◽  
Vol 77 (5) ◽  
pp. 803-807
Author(s):  
Christoph Kenis ◽  
Michael Ditchfield ◽  
Eldho Paul ◽  
Paul M. Parizel ◽  
Stephen Stuckey
Keyword(s):  
Computed Tomography ◽  
Young Child ◽  
Petromastoid Canal

Radiology of the Petromastoid Canal

2006 ◽  
Vol 27 (3) ◽  
pp. 410-413 ◽  
Author(s):  
Lela Migirov ◽  
Jona Kronenberg
Keyword(s):  
Petromastoid Canal

The Petromastoid Canal

1983 ◽  
Vol 92 (6) ◽  
pp. 640-644 ◽  
Author(s):  
Bruce Proctor
Keyword(s):  
Blood Vessels ◽  
Posterior Fossa ◽  
Middle Ear ◽  
Cell System ◽  
Facial Canal ◽  
Bony Labyrinth ◽  
Middle Ear Cleft ◽  
Petromastoid Canal

The embryology and anatomy of the petromastoid canal is reviewed. This structure may be responsible for the passage of some infections of the middle ear cleft into the posterior fossa. It also transmits important blood vessels to a portion of the bony labyrinth, to the facial canal, and to the mucosa of the mastoid air cell system.

scholarly journals A Classification for the Anterior Inferior Cerebellar Artery—Subarcuate Artery Complex Based on the Embryological Development

2019 ◽  
Vol 81 (05) ◽  
pp. 536-545
Author(s):  
Jorge Rasmussen ◽  
Pedro Plou ◽  
Álvaro Campero ◽  
Pablo Ajler
Keyword(s):  
Cerebellopontine Angle ◽  
Anterior Inferior Cerebellar Artery ◽  
Embryological Development ◽  
Constructive Interference ◽  
State Sequence ◽  
Cerebellar Artery ◽  
Surgical Field ◽  
Grade 3 ◽  
Subarcuate Artery ◽  
Petromastoid Canal

Objective To hierarchize the anterior inferior cerebellar artery (AICA)–subarcuate artery (SAA) complex's variations in the surgical field. Background The AICA's “subarcuate loop” (SL) presents multiple variations, closely related to the SAA. AICA-SAA complex's variations may represent major issues in cerebellopontine angle (CPA) surgery. As the spectrum of configurations is originated during the development, a systematized classification was proposed based on the interaction between the petrosal bone and the AICA in the embryonic period. Methods The variations were defined as follow: Grade 0: free, purely cisternal AICA, unidentifiable or absent SAA; Grade 1: purely cisternal AICA, loose SL, SAA > 3 mm; Grade 2: AICA near the subarcuate fossa, pronounced SL, SAA <3 mm; Grade 3: “duralized” AICA, unidentifiable SAA, or included in the petromastoid canal (PMC); and Grade 4: intraosseous AICA, unidentifiable SAA, or included in the PMC. The classification was applied to a series of patients assessed by magnetic resonance constructive interference in steady state sequence. Surgical examples were also provided. Results Eighty-four patients were evaluated, including 161 CPA. The proportions found in the gradation remained within the range of previous publications (Grade 0: 42.2%; Grade 1: 11.2%; Grade 2: 35.4%; Grade 3: 10.6%; and Grade 4: 0.6%). Moreover, the degrees of the classification were related to the complexity of the anatomical relationships and, therefore, to the difficulty of the maneuvers required to overcome them. Conclusion The proposed AICA-SAA complex classification allowed to distinguish and objectify pre- and intraoperatively the spectrum of variations, to thoroughly plan the required actions and instrumentation.

Normal CT appearances of the subarcuate fossa and petromastoid canal

1995 ◽  
pp. 385-386
Author(s):  
H. Nakagawa ◽  
S. Iwasaki ◽  
T. Taoka ◽  
M. Nakane ◽  
K. Kichikawa ◽  
...  
Keyword(s):  
Petromastoid Canal

The petromastoid canal on computed tomography

2002 ◽  
Vol 12 (11) ◽  
pp. 2770-2775 ◽  
Author(s):  
G. Krombach ◽  
T. Schmitz-Rode ◽  
A. Prescher ◽  
E. DiMartino ◽  
J. Weidner ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Petromastoid Canal

Petromastoid Canal

2015 ◽  
Vol 66 (3) ◽  
pp. 180
Author(s):  
Eduardo Antonio Mena-Domínguez ◽  
José Ignacio Benito-Orejas ◽  
Darío Morais-Pérez
Keyword(s):  
Petromastoid Canal
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