Reversible hyposmia caused by intracranial tumour

1999 ◽  
Vol 113 (8) ◽  
pp. 750-753 ◽  
Author(s):  
Tadashi Ishimaru ◽  
Takaki Miwa ◽  
Motohiro Nomura ◽  
Masayuki Iwato ◽  
Mrrusuru Furukawa
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Frontal Lobe ◽  
Intracranial Tumour ◽  
Resonance Imaging ◽  
First Case ◽  
Simple Compression ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
Olfactory Disturbance

AbstractTwo patients with hyposmia caused by an intracranial tumour recovered olfactory functions after craniotomy. The first case was a 68-year-old male with a tumour metastasized from the lung to the right frontal lobe. The second case was a 75-year-old male with meningioma of the right frontal lobe. Results of T & T olfactometry and venous olfaction tests also indicated suspected central hyposmia. Magnetic resonance imaging (MRI) indicated compression of the frontal lobe by intracranial tumour. Pressure on the olfactory centre located in the frontal lobe produced hyposmia. Decompression of the frontal lobe by craniotomy improved the sense of smell. Therefore, some cases of olfactory disturbance caused by intracranial tumour may be reversible if they are the result of simple compression of the olfactory centre.

In Vivo MR Studies of Dynamic Changes in the Interosseous Membrane of the Forearm During Rotation

1999 ◽  
Vol 24 (2) ◽  
pp. 245-248 ◽  
Author(s):  
T. NAKAMURA ◽  
Y. YABE ◽  
Y. HORIUCHI
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Interosseous Membrane ◽  
Resonance Imaging ◽  
Forearm Rotation ◽  
Dynamic Changes ◽  
Magnetic Resonance Imaging Mri ◽  
Membranous Part ◽  
The Right

In vivo dynamic changes in the interosseous membrane (IOM) during forearm rotation were studied using magnetic resonance imaging (MRI). The right forearms of 20 healthy volunteers were examined in five different rotational positions. Axial slices were obtained at the proximal quarter, the middle and the distal quarter of the forearm. The changes in shape of the IOM during rotation were observed in an axial MR plane. For each image, we measured the interosseous distance and the length of the interosseous membrane. Images of the tendinous and membranous parts of the IOM could be differentiated by thickness. There were minimal dynamic changes in the tendinous part on the MRI while the membranous part showed numerous changes during rotation. The interosseous distance and the length of the interosseous membrane were maximum from a neutral to a slightly supinated position. The tendinous part is considered to be taut during rotation to provide stability between the radius and the ulna, but the membranous part which is soft, thin and elastic, allows smooth rotation.

Quantitative Muscle Ultrasound versus Magnetic Resonance Imaging in Duchenne Muscular Dystrophy

2020 ◽  
Author(s):  
Jun Hu ◽  
Li Jiang ◽  
Siqi Hong ◽  
Li Cheng ◽  
Qiao Wang ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Duchenne Muscular Dystrophy ◽  
Magnetic Resonance ◽  
Muscular Dystrophy ◽  
Low Cost ◽  
Muscle Thickness ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
Muscle Ultrasound

Abstract Background: Nowadays, it needs favorable biomarkers to follow up the disease progression and therapeutic responses of Duchenne muscular dystrophy (DMD). This study evaluates which one of Quantitative muscle ultrasound (QMUS) and magnetic resonance imaging (MRI) is suitable for the disease in China. Methods: Thirty-six boys with DMD engaged in the longitudinal observational cohort study, who used prednisone from baseline to 12th month. Muscle thickness (MT) and echo intensity (EI) of QMUS and T1-weighted MRI grading were measured in the right quadriceps femoris of the boys with DMD. Results: The scores of MT and EI of QMUS and T1-weighted MRI grading showed significant correlations with the clinical ones of muscle strength, timed testing, and quality of life. The scores of MT and EI of QMUS showed good correlations with the ones of T1-weighted MRI grading too (P<0.05). But 15 of 36 boys with DMD did not take MRI examinations for different reasons. Conclusions: QMUS and MRI can use as biomarkers for tracking DMD. Nevertheless, QMUS, because of its practical, low cost, and patient-friendly, applies for DMD widely than MRI in China. Keywords: Ultrasonography, Magnetic resonance imaging, Duchenne muscular dystrophy, Child

scholarly journals Visualization of a Small Ventricular Septal Defect at First-pass Contrast-enhanced Cardiac Magnetic Resonance Imaging

2013 ◽  
Vol 3 ◽  
pp. 59 ◽  
Author(s):  
Francesco Secchi ◽  
Antonello Giardino ◽  
Salvatore Fabiano ◽  
Vlasta Fesslova ◽  
Francesco Sardanelli
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Ventricular Septal Defect ◽  
Septal Defect ◽  
Contrast Material ◽  
Resonance Imaging ◽  
Contrast Enhanced ◽  
First Pass ◽  
Magnetic Resonance Imaging Mri ◽  
The Right

Ventricular septal defect (VSD) is a congenital heart disease that accounts for up to 40% of all congenital cardiac malformations. VSD is a connection between right and left ventricle, through the ventricular septum. Echocardiography and magnetic resonance imaging (MRI) help identify this entity. This case presents a 12-year-old male diagnosed with a small muscular apical VSD of 3 mm in diameter, at echocardiography. Cardiac MRI using first-pass perfusion sequence, combining the right plane of acquisition with a short bolus of contrast material, clearly confirmed the presence of VSD.

scholarly journals Diffusion-weighted Magnetic Resonance Imaging in the Early Diagnosis of Neonatal Adrenoleukodystrophy

2011 ◽  
Vol 1 ◽  
pp. 20 ◽  
Author(s):  
R Nuri Sener ◽  
Mehmet H Atalar
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Diffusion Mri ◽  
Resonance Imaging ◽  
Baby Girl ◽  
Laboratory Findings ◽  
Neonatal Adrenoleukodystrophy ◽  
First Case ◽  
Weighted Magnetic Resonance Imaging ◽  
Magnetic Resonance Imaging Mri

A newborn baby girl developed seizures right after birth. On the fourth day, the baby was examined using diffusion sequence magnetic resonance imaging (MRI) and diagnosed to have neonatal adrenoleukodystrophy. Laboratory findings confirmed the diagnosis. This is the first case of neonatal adrenoleukodystrophy (NALD) where diffusion MRI sequence helped in the diagnosis. We find association of NALD with seizures at birth is an extremely rare occurrence, and so far, only one case has been mentioned in the literature.

scholarly journals Fibromatosis colli: a rare left-sided presentation in a female infant

2020 ◽  
Vol 7 (1) ◽  
pp. 141
Author(s):  
Arthur Wong ◽  
Tengku Ezulia Tengku Nun Ahmad
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Benign Lesion ◽  
Fibrous Tissue ◽  
Final Diagnosis ◽  
Sternocleidomastoid Muscle ◽  
Female Infant ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
The Right

<p class="abstract">Fibromatosis colli is a rare benign lesion characterised by a proliferation of fibrous tissue within the sternocleidomastoid muscle. There is a slight preponderance to affect males and it occurs more frequently on the right side of the neck. Here, we report a 6-week-old girl who presented with a swelling on the left side of her neck, opposite to usual tendencies. Ultrasonography reported a left sternocleidomastoid muscle tumour of unknown specificity. A magnetic resonance imaging (MRI) was needed to ascertain the final diagnosis of a left fibromatosis colli. She was managed conservatively and the condition resolved by the age of 1 year. In most cases, fibromatosis colli is reliably diagnosable with ultrasonography alone. MRI may be considered as an adjunct in situations where diagnostic doubts still persist.</p>

scholarly journals Role of magnetic resonance imaging in the early diagnosis of paratesticular rhabdomyosarcoma

2016 ◽  
Vol 98 (5) ◽  
pp. e74-e76 ◽  
Author(s):  
T Shah ◽  
O Abu-Sanad ◽  
H Marsh
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Delayed Diagnosis ◽  
Resonance Imaging ◽  
Post Contrast ◽  
Diagnostic Uncertainty ◽  
Ultrasound Findings ◽  
History Of ◽  
Magnetic Resonance Imaging Mri ◽  
The Right

Introduction Paratesticular lesions are common, and one subgroup is paratesticular rhabdomyosarcoma. The latter is a relatively uncommon (but aggressive) tumour that affects children and adolescents predominantly. Ultrasound is the first-line investigation, but can be inconclusive. Magnetic resonance imaging (MRI) can provide useful information, but its role in the diagnosis of rhabdomyosarcoma is not clear. Case History We report a 17-year-old male who presented with a one-month history of a rapidly enlarging, non-tender, lump in the right testicle. Urgent ultrasound of the scrotum revealed a heterogenous paratesticular mass that was hypervascular and showed calcification in the right inguinal area. MRI of the pelvis showed a solid, enhancing lesion of dimension located superior to the upper pole of the right testes and a slightly heterogeneous T2 signal, but was homogenous post-contrast. The patient underwent right radical orchidectomy, and histology results were assessed. He received chemotherapy and is being followed up. Conclusions Improvements in imaging in addition to early surgical intervention and chemotherapy treatment are crucial to improve survival chances against rhabdomyosarcoma. Ultrasound findings for benign diseases may mimic those seen in rhabdomyosarcoma. In such cases of diagnostic uncertainty, our surgical team suggest MRI to reduce the risk of a delayed diagnosis and time to treatment.

Inferior Temporal Sulcus as a Site of Corticotomy: Magnetic Resonance Imaging Analysis of Individual Sulcus Patterns

Neurosurgery ◽  
2001 ◽  
Vol 49 (6) ◽  
pp. 1394-1398 ◽  
Author(s):  
Yasushi Miyagi ◽  
Fumio Shima ◽  
Katsuya Ishido ◽  
Takehisa Araki ◽  
Kazufumi Kamikaseda
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Hippocampal Sclerosis ◽  
Resonance Imaging ◽  
Temporal Lobes ◽  
Surface Anatomy ◽  
Selective Amygdalohippocampectomy ◽  
Mri Scans ◽  
Magnetic Resonance Imaging Mri ◽  
The Right

ABSTRACT OBJECTIVE Transcortical approaches to the inferior horn often result in quadrant hemianopsia attributable to the injury to the optic radiation. The inferior temporal sulcus (ITS) has received little attention as an entrance point for the transsulcal approach. We used the method of detecting the ITS with magnetic resonance imaging (MRI) scans and investigated the sulcus pattern of ITS, its incidence rate, and the availability of the ITS to the corticotomy for selective amygdalohippocampectomy. METHODS The sulcus patterns of the ITS of 100 temporal lobes in 50 healthy individuals were classified according to the number of interruptions by gyral bridges, and the localization of the ITS was characterized in relation to the outer surface by means of the surface anatomy scan of MRI. RESULTS Most of the ITS was interrupted by one to three gyral bridges (0 bridges, 8%; one bridge, 27%: two bridges, 37%; three bridges, 20%; more than four bridges or no apparent ITS, 8%). When the ITS was present, it was located 15 mm above the orbitotragus line at a point 20 mm anterior to the tragus. The number of gyral bridges was significantly larger in the left temporal lobes than in the right temporal lobes, regardless of the sex of the subject. CONCLUSION The ITS was clearly identified in 72% of the temporal lobes by the oblique sagittal view of MRI scans; thus, in such cases, the ITS was considered to be a candidate for an entrance point of a small temporal corticotomy. The preoperative observation of the ITS in relation to the orbitotragus line by means of MRI may improve the planning of the transsulcal approaches to deeply seated mesial temporal lesions, such as hippocampal sclerosis.

Synchronous cystic teratomas of the craniofacial region

2003 ◽  
Vol 117 (10) ◽  
pp. 824-826
Author(s):  
Neena Chaudhary ◽  
Krishna Pal Singh Malik ◽  
Alok Gupta ◽  
Anil Kumar Rai ◽  
Pankaj Gupta ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Pathological Examination ◽  
Resonance Imaging ◽  
Mri Scan ◽  
Temporal Fossa ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
Slow Growing

A case of synchronous cystic teratomas presented with the complaints of a slow-growing facial mass and forward protrusion of the right eye since birth. The patient was examined thoroughly and subjected to magnetic resonance imaging (MRI) scan. The MRI scan revealed the presence of two separate cysts in the right orbit and right temporal fossa. The patient was operated by a combined effort of ophthalmologists and otorhinolaryngologists. The cysts were excised and subjected to pathological examination. The histopathological survey revealed both the cysts to be mature cystic teratomas similar to each other. This coexistence of a primary temporal fossa teratoma with an orbital teratoma is the first of its kind and to the best of our knowledge has not been reported before.

Ruptured aneurysm of noncoronary sinus of valsalva: demonstration with magnetic resonance imaging

2008 ◽  
Vol 49 (8) ◽  
pp. 889-892 ◽  
Author(s):  
T. C. Dincer ◽  
I. Basarici ◽  
C. Calisir ◽  
A. Mete ◽  
C. Ermis ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Imaging Techniques ◽  
Sinus Of Valsalva ◽  
Resonance Imaging ◽  
Conventional Angiography ◽  
Rare Lesion ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
Diagnostic Importance

There are few published reports regarding imaging findings of sinus of Valsalva aneurysms (SVA) with magnetic resonance imaging (MRI). We present an unusual form of ruptured SVA, emphasizing the diagnostic importance of MRI among a range of imaging techniques. This case report describes a case of idiopathic (thought to be congenital in origin), acutely symptomatic ruptured noncoronary SVA diagnosed by MRI and confirmed with conventional angiography and surgery. MRI accurately showed aneurysm size, location, and rupture into the right atrium and provided valuable information about this rare lesion.

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