Results 31 to 40 of about 45,255 (304)
Primary cerebellopontine angle melanocytoma: review. [PDF]
Introduction Primary cerebellopontine angle melanocytomas (PCPAMs) are very rare. Their natural history and prognosis are not fully understood. We reviewed the literature and add a new case to analyze PCPAM's presentation, radiological features, and ...
Elashaal, R +3 more
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Objective. The aim of this study was to determine the posterior cranial fossa volume, cerebellar volume, and herniated tonsillar volume in patients with chiari type I malformation and control subjects using stereological methods.
Ümit Erkan Vurdem +4 more
doaj +1 more source
22 cases of hyperactive dysfunction syndromes (HDS) of cranial nerves (20 — trigeminal neuralgia, 2 — hemifacial spasm) in combination with extracerebral tumors in posterior fossa (9 — meningioma, 6 — acoustic nerve tumor, 6 — cholesteatoma, 1
V. O. Fedirko
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Cranial anatomy and palaeoneurology of the archosaur Riojasuchus tenuisceps from the Los Colorados Formation, La Rioja, Argentina. [PDF]
Riojasuchus tenuisceps Bonaparte 1967 is currently known from four specimens, includingtwo complete skulls, collected in the late 1960s from the upper levels of the Los ColoradosFormation (Late Triassic), La Rioja, Argentina.
Desojo, Julia Brenda, Von Baczko, Belen
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Imaging for juvenile angiofibroma [PDF]
Juvenile angiofibroma presents characteristic imaging signs, many of which allow diagnosis and accurate estimation of extent without recourse to the dangers of biopsy.
Howard, D, Lloyd, G, Lund, VJ, Savy, L
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A new dromaeosaurid (Dinosauria: Theropoda) from the Upper Cretaceous Wulansuhai Formation of Inner Mongolia, China [PDF]
We describe a new dromaeosaurid theropod from the Upper Cretaceous Wulansuhai Formation of Bayan Mandahu, Inner Mongolia. The new taxon, Linheraptor exquisitus gen. et sp.
Choiniere, J.N. +10 more
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Background. The relevance of this study is to study the variability of the structures of the posterior cranial fossa, cerebellum and their ratios related to the magnitude of the basilar angle, which are taken into account in neurorentgenology as ...
O.Yu. Aleshkina +6 more
doaj +1 more source
Objective To examine the morphological characteristics of the bone structure in the posterior cranial fossa in adult patients with Chiari malformation type Ⅰ (CMⅠ) without basilar invagination. Methods Thirty-eight adult patients with CMⅠ without basilar
WANG Shengxi +4 more
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The oldest known snakes from the Middle Jurassic-Lower Cretaceous provide insights on snake evolution [PDF]
The previous oldest known fossil snakes date from ∼100 million year old sediments (Upper Cretaceous) and are both morphologically and phylogenetically diverse, indicating that snakes underwent a much earlier origin and adaptive radiation.
Apesteguía, Sebastián +3 more
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Evolutionary relationships and systematics of Atoposauridae (Crocodylomorpha: Neosuchia): implications for the rise of Eusuchia [PDF]
Atoposaurids are a group of small-bodied, extinct crocodyliforms, regarded as an important component of Jurassic and Cretaceous Laurasian semi-aquatic ecosystems.
Mannion, PD, Tennant, JP, Upchurch, P
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