Association Between Measures of Vertebral Endplate Morphology and Lumbar Intervertebral Disc Degeneration.

Purpose: The aim of this study was to evaluate the association between vertebral endplate morphology and the degree of lumbar intervertebral disc degeneration via magnetic resonance imaging (MRI).

Methods: In total, 150 patients who met the inclusion criteria and were 20-60 years of age were retrospectively evaluated. Patients were evaluated for the presence of intervertebral disc degeneration or herniation, and the degree of degeneration was assessed at all lumbar levels.

The importance of carotid-cochlear interval in the etiology of hearing loss.

Carotid-cochlear interval (CCI) is the minimal distance between petrous segment of internal carotid artery (ICA) and basal turn of cochlea. Pulsations of the ICA might create fluid pressure changes and direct stimulation of hair cells on the basilar membrane of basal turn of cochlea which is responsible for mid-tone frequencies. The purpose of this study was to investigate whether CCI has a role in the etiology of mid-tone hearing loss and to obtain reference measurements of CCI on MRI.

Intranasal angiofibrolipoma.

Angiofibrolipoma is a rarely seen histopathological variant of lipoma. It is seldom in the head and neck region. Clinically, it shows macroscopic similarity with lipoma.

Giant pleomorphic adenoma of the parotid gland.

Pleomorphic adenomas are the most common benign tumors of the salivary glands. These adenomas generally present without pain and are slowly enlarged. However, they can reach enormous sizes, because they are often neglected by the patient and due to late diagnosis and intervention because of fear of surgery or sociocultural factors.

A case of a coexisting aberrant internal carotid artery and persistent stapedial artery: the role of MR angiography in the diagnosis.

We describe the case of a 37-year-old woman who presented with a complaint of recurrent headaches since childhood. Clinical examination revealed the presence of a reddish-bluish mass in the inferior half of the tympanic membrane in her right ear. Source and three-dimensional time-of-flight magnetic resonance angiography (MRA) detected a protruded right internal carotid artery (ICA) in the hypotympanum.

Petrous apex cephalocele and empty sella/arachnoid cyst coexistence: a clue for cerebrospinal fluid pressure imbalance?

Purpose: To reveal the magnetic resonance imaging (MRI) properties of incidental petrous apex cephalocele (PAC) and coexisting empty sella-arachnoid cyst.

Materials And Methods: We reviewed our archive from June 2005 to July 2008. Four patients were diagnosed with PAC (four females; age range, 41-60 years; mean, 48.

Spontaneous resolution of calcified cephalhematomas of infancy: report of two cases.

Cephalhematoma (CH) is less commonly encountered problem of infancy with an incidence of 1 % however calcified CHs are seldom. The exact reason of calcification remains unclear. We report two cases of calcified CHs that developed as a complication of vacuum extraction during vaginal delivery.

Magnetic resonance cisternographic evaluation of glossopharyngeal, vagus, and accessory nerves.

Purpose: The individual visualization of the glossopharyngeal, vagus, and accessory nerves has been a troublesome issue. After the recent developments in the microsurgical field, the detailed knowledge of the relationship of these nerves and the tumour has gained importance. The purpose of this study is to compare the visibility of each of these nerves.

Restricted diffusion in the optic nerve and retina demonstrated by MRI in rhino-orbital mucormycosis.

A 29-year-old man developed vision loss in the right eye due to ophthalmic artery, cavernous sinus, and superior ophthalmic vein occlusion in mucormycosis. Diffusion MRI obtained within 2 days of symptom onset showed that the apparent diffusion coefficient values of the optic nerve and retina were remarkably decreased on the affected compared with the unaffected side. A follow-up MRI study 21 days after symptom onset revealed the anticipated disappearance of these signal changes, confirming that they were a true reflection of ischemia in the optic nerve and retina.

Quantitative diffusion magnetic resonance imaging of intraspinal epidermoid cyst.

We report a case of spinal epidermoid cyst which was diagnosed by fast fluid- attenuated inversion-recovery (FLAIR) and echo-planar diffusion-weighted imaging in addition to conventional MR techniques. We measured the apparent diffusion coefficient (ADC). The mean ADC was 0.

Age, sex and body mass index in relation to calvarial diploe thickness and craniometric data on MRI.

It might be critical to determine sex, body mass and age of the individual from skull in forensic medicine and anthropology. Our purpose in this study was to evaluate whether a relationship existed between the diploeic bone thickness measured from glabella, bregma, lambda, opisthocranion, and euryon regions and sex, age and body mass index of the individual. Glabella-opisthocranion, vertex-basion, euryon-euryon, basion-opisthion length were also determined for the same purpose.

Magnetic resonance and diffusion-weighted imaging findings of herpes simplex encephalitis.

Herpes simplex encephalitis (HSE) is a rare, life-threatening disease. This paper draws attention to the role of imaging in early HSE diagnosis. Five consecutive patients diagnosed with HSE (type 1) between June 2005 and June 2006 (three males, two females, mean age 44 [range 16-68] years) were included in this retrospective study.

Cerebral leukoencephalopathy with calcifications and cysts operated for signs of increased intracranial pressure: case report.

Background: Association of leukoencephalopathy with calcifications and cysts is extremely rare. It should be differentiated from FD or bilateral striopallidodentate calcinosis and astrocytoma. Yet, there are many other clinical syndromes featuring bilateral symmetric cerebral calcifications.

Tortuous internal carotid artery narrowing pyriform sinus: two cases.

An elongation of the internal carotid artery should be classified as a tortuosity or a kink. Tortuosity of the carotid artery is rarely seen in otolaryngologic practice. In videolaryngoscopic examination, bilateral pyriform sinus narrowing was found in one patient and unilateral pyriform sinus narrowing in the other patient.

Agenesis of the dorsal pancreas.

Developmental anomalies of the pancreas have been reported but dorsal pancreatic agenesis is an extremely rare entity. We report an asymptomatic 62-year-old woman with complete agenesis of the dorsal pancreas. Abdominal computed tomography (CT) revealed a normal pancreatic head, but pancreatic body and tail were not visualized.

Comparison of FSE T2W and 3D FIESTA sequences in the evaluation of posterior fossa cranial nerves with MR cisternography.

Purpose: The aim of this study was to compare 3D fast imaging with steady state acquisition (3D FIESTA) to fast spin echo T2-weighted (FSE T2W) MRI sequences in the imaging of cisternal parts of cranial nerves V-XII.

Materials And Methods: We retrospectively evaluated the temporal MRI sequences of 50 patients (F:M ratio, 27:23; mean age, 44.5 +/- 15.

Concha bullosa types: their relationship with sinusitis, ostiomeatal and frontal recess disease.

Purpose: To assess the relationship among the concha bullosa types and sinusitis, ostiomeatal and frontal recess disease.

Materials And Methods: Computed tomography (CT) studies of 76 patients diagnosed with concha bullosa were reviewed retrospectively. All examinations were performed for evaluation of a symptom referable to sinonasal region.