Introduction. Embolization into the systemic circulation through persistent foramen ovale is known as paradoxical embolization. Coexistence of embolism with pulmonary thromboembolism rare and it requires detailed examination. The objective this study was to present an unusual case stroke that complicated by occurrence thromboembolism, thrombosis superior mesenteric artery, arterial infarction n...

Introduction Atlas is the first cervical vertebra. It is ring shaped, without a body. It has an anterior arch, a posterior arch and two lateral masses. The lateral masses articulate with the occipital condyles to form an ellipsoid type of synovial joint. The anterior arch articulates with the dens of the axis to form a pivot type of synovial joint. The posterior arch is grooved by the third par...

A 29-year-old female patient visited the emergency room for whirling dizziness and hypersomnolence. She had had a cervical chiropractic manipulation two weeks before admission. She had no previous history of stroke or vasculitis. Initial diffusionweighted images showed diffusion restriction in the bilateral thalami, occipital lobes, and brain stem. Subsequent magnetic resonance angiography (MRA...

Asterixis is not yet considered a common neurological sign of cerebellum infarction, and the pathogenic mechanism for asterixis remains elusive. We report a 58-year-old male with moderate hypertension who presented to our emergency department for acute headache in both cervical and occipital regions of the left side. About 2 hours later the patient developed ipsilateral asterixis in the upper l...

Case Description- Three female Pomeranian dogs with mean age about 1-year-old and history of seizure and sudden shock were referred to Small Animal Hospital of University of Tehran. Clinical Finding- Occipital Dysplasia was diagnosed by radiographic findings in rostrodorsal- coudoventral oblique view in all cases. Treatment and Outcome- These dogs recovered by 14 days administration of Glucoc...

The ascending pharyngeal artery of the dog was investigated by means of the acryl plastic injection method. This artery usually arose from the external carotid artery, sometimes from the occipital, the posterior auricular, or rarely the ascending palatine of the lingual artery. It ran forwards between the vagus and hypoglossal nerves and continued anteromedially up to the posterolateral wall of...

Posterior circulation revascularization is a challenging technique because microanastomosis must be performed in deep locations. A reproducible simulation model is proposed for training. The prototype three-dimensional skull model with artificial brain was used. The mesencephalic segment of superior cerebellar artery (SCA) and the caudal loop of the posterior inferior cerebellar artery (PICA) w...

OBJECTIVE To investigate the involvement of arteries other than the temporal arteries in active giant cell arteritis using color Doppler sonography. METHODS The occipital, facial, vertebral, carotid, subclavian, axillary, brachial, ulnar radial, femoral, popliteal, posterior tibial, and dorsal pedal arteries, and the abdominal aorta of 33 consecutive patients with acute giant cell arteritis a...

BACKGROUND The purpose of this study was to provide practical data for the imaging diagnosis of the optic pathways. METHODS Sectional anatomy of the optic pathways on the coronal plane was investigated on 15 sets of serial coronal sections of the head of Chinese adult cadavers and 6 sets of serial coronal magnetic resonance imaging of normal adults. RESULTS On the coronal plane, we recogniz...

Pure alexia refers to an acquired disorder associated with the damage to medial occipitotemporal gyrus in the dominant hemisphere, which is also known as visual word form area (VWFA). VWFA is involved in rapid word recognition and fluent reading. Alexia without agraphia is a disconnection syndrome that occurs when the splenium is also damaged with the occipital lobe on a dominant side. We repor...