scholarly journals Temporal Lobe Sulcal Pattern and the Bony Impressions in the Middle Cranial Fossa: The Case of the El Sidrón (Spain) Neandertal Sample

2014 ◽  
Vol 297 (12) ◽  
pp. 2331-2341 ◽  
Author(s):  
Antonio Rosas ◽  
Angel Peña-Melián ◽  
Antonio García-Tabernero ◽  
Markus Bastir ◽  
Marco De La Rasilla
Keyword(s):  
Temporal Lobe ◽  
Middle Cranial Fossa ◽  
Cranial Fossa ◽  
Sulcal Pattern

Bilateral middle cranial fossa arachnoidal cysts with temporal lobe agenesis associated with astrocytoma: fortuitous finding

2015 ◽  
Vol 115 (4) ◽  
pp. 703-705
Author(s):  
Boris Radić ◽  
Vladimir Miletić ◽  
Ratimir Petrović ◽  
Petra Radić
Keyword(s):  
Temporal Lobe ◽  
Middle Cranial Fossa ◽  
Cranial Fossa

Asymmetry of the middle cranial fossa in schizophrenia, temporal lobe epilepsy and controls

1997 ◽  
Vol 24 (1-2) ◽  
pp. 147
Author(s):  
S.P. Hamersley ◽  
E. Wang ◽  
E. Regis ◽  
D.J. Lang ◽  
T.G. Beach ◽  
...  
Keyword(s):  
Temporal Lobe Epilepsy ◽  
Temporal Lobe ◽  
Middle Cranial Fossa ◽  
Cranial Fossa

The arcuate eminence is not a protrusion of the superior semi-circular canal but a trace of sulcus on the temporal lobe

2000 ◽  
Vol 114 (5) ◽  
pp. 339-344 ◽  
Author(s):  
Atsunobu Tsunoda ◽  
Yurika Kimura ◽  
Takuro Sumi ◽  
Atsushi Komatsuzaki ◽  
Tatsuo Sato
Keyword(s):  
Temporal Lobe ◽  
Internal Auditory Canal ◽  
Middle Cranial Fossa ◽  
Petrous Bone ◽  
The Other ◽  
Inferior Surface ◽  
Important Landmark ◽  
Cranial Fossa ◽  
Temporal Bones ◽  
Occipitotemporal Sulcus

Thirteen cadavers (26 temporal bones) were examined to show the arcuate eminence, especially its correspondence to the superior semicircular canal and inferior surface of the temporal lobe. Arc-like eminences on the petrous bone were observed in 92 per cent of specimens, however, they did not exactly correspond to the superior semi-circular canal. Some eminences corresponded to sulci of the temporal lobe of which most were traces of the occipitotemporal sulcus.On the other hand, a dull, smooth and even domed eminence existed in nine temporal bones independently of the arc-like eminence. Those eminences corresponded to each superior semi-circular canal in only three out of nine specimens.The arcuate eminence was listed as an important landmark in the middle cranial fossa approach. However, in order to drill out the internal auditory canal safely, surgeons should rely on other landmarks or apply other methods from our data.

scholarly journals Spontaneous encephaloceles of the temporal lobe

2008 ◽  
Vol 25 (6) ◽  
pp. E11 ◽  
Author(s):  
Joshua J. Wind ◽  
Anthony J. Caputy ◽  
Fabio Roberti
Keyword(s):  
Temporal Lobe ◽  
Middle Ear ◽  
Intractable Epilepsy ◽  
Middle Cranial Fossa ◽  
Brain Parenchyma ◽  
Endoscopic Techniques ◽  
Tegmen Tympani ◽  
Clinical Series ◽  
Cranial Fossa ◽  
Dural Defects

Encephaloceles are pathological herniations of brain parenchyma through congenital or acquired osseus-dural defects of the skull base or cranial vault. Although encephaloceles are known as rare conditions, several surgical reports and clinical series focusing on spontaneous encephaloceles of the temporal lobe may be found in the otological, maxillofacial, radiological, and neurosurgical literature. A variety of symptoms such as occult or symptomatic CSF fistulas, recurrent meningitis, middle ear effusions or infections, conductive hearing loss, and medically intractable epilepsy have been described in patients harboring spontaneous encephaloceles of middle cranial fossa origin. Both open procedures and endoscopic techniques have been advocated for the treatment of such conditions. The authors discuss the pathogenesis, diagnostic assessment, and therapeutic management of spontaneous temporal lobe encephaloceles. Although diagnosis and treatment may differ on a case-by-case basis, review of the available literature suggests that spontaneous encephaloceles of middle cranial fossa origin are a more common pathology than previously believed. In particular, spontaneous cases of posteroinferior encephaloceles involving the tegmen tympani and the middle ear have been very well described in the medical literature.

scholarly journals Mastoiditis and Tegmen Tympani Defect Leading to Intracranial Abscess with Actinomyces odontolyticus

2020 ◽  
pp. 1-4
Author(s):  
Omar S. Akbik ◽  
Omar S. Akbik ◽  
M. Gabriela Cabanilla ◽  
Bradley P. Pickett ◽  
Christian B. Ricks
Keyword(s):  
Case Report ◽  
Temporal Lobe ◽  
Middle Ear ◽  
Middle Cranial Fossa ◽  
Cerebral Abscess ◽  
Source Control ◽  
Left Temporal Lobe ◽  
Tegmen Tympani ◽  
Cranial Fossa

Introduction: Central nervous system (CNS) actinomycosis typically presents from the local spread of infection via the ear, sinus, or cervicofacial region, resulting most commonly in abscesses. Only one other case report reports on cerebral abscess with Actinomyces odontolyticus. Presentation of Case: A 60-year-old male presented with cognitive impairment and speech difficulties. Imaging revealed a cerebral abscess in the left temporal lobe causing significant mass effect and uncal herniation. Bony erosion was noted along the middle cranial fossa with fluid attenuation of the middle ear and mastoid. An emergent surgery was performed with neurosurgery and otolaryngology. Initially, a left craniotomy was performed in order to obtain access to the left temporal lobe. A vascularized flap was harvested from the fascia of the temporalis in order to repair any defects along the middle cranial fossa. The abscess was drained using ultrasound guidance. A mastoidectomy was then performed for source control. Cultures revealed Actinomyces odontolyticus for which intravenous antibiotics were administered. The patient developed postoperative seizures requiring monitoring and anti-epileptic medication. Follow-up revealed continued improvement in the patient’s cognition. Discussion: Cerebral abscess in the temporal lobe along the floor of the middle cranial fossa can be due to direct extension of infection from the middle ear or mastoid which requires a multidisciplinary approach to surgical treatment. Actinomycosis is a rare pathogen for CNS infection with only one other case report of CNS Actinomyces odontolyticus. Postoperative care in regards to antibiotic treatment and follow-up are also reviewed. Conclusion: The case highlights the urgency of treatment and surgical decision making made intraoperatively by both neurosurgery and otolaryngology in regards to drainage, repair of the defect, and treatment of infectious source.

Arcuate eminence in Caucasian populations

2001 ◽  
Vol 115 (1) ◽  
pp. 9-13 ◽  
Author(s):  
Atsunobu Tsunoda
Keyword(s):  
Temporal Lobe ◽  
Semicircular Canal ◽  
Middle Cranial Fossa ◽  
Tympanic Cavity ◽  
Lateral Semicircular Canal ◽  
Superior Semicircular Canal ◽  
Cranial Fossa ◽  
Temporal Bones

The arcuate eminence (AE) was studied in 21 Caucasian cadavers (42 temporal bones), with particular reference to its relationship to the superior semicircular canal (SSC) and the temporal lobe. An arc-like eminence was observed in over 80 per cent of specimens, however, they did not exactly correspond to the SSC and such eminences corresponded to the sulci of the temporal lobe. The round and domed eminence corresponded to each SSC in seven temporal bones. The distances between the SSC and the middle cranial fossa were varied (0–2.5 mm, mean: 1.2 mm+± 0.6 mm) whereas distances between the lateral semicircular canal and tympanic cavity were relatively consistent (0.6–1.4 mm, mean: 1.0 mm ± 0.2 mm).These data indicate that the AE is trace of the temporal lobe and the SSC gave little effect to the surface of the middle cranial fossa. These findings could well be applicable to all humans.

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