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8 results on '"Natal MR"'

2. Unusual magnetic resonance imaging findings of cystic bone lesions in congenital generalized lipodystrophy.

Author

T de Oliveira TF, C Natal MR, Teixeira AA, and Machado BB

Subjects
Humans, Magnetic Resonance Imaging, Adipose Tissue diagnostic imaging, Lipodystrophy, Congenital Generalized complications
Abstract

Cystic bone lesions are the hallmark of skeletal abnormalities in patients with congenital generalized lipodystrophy (CGL). However, their pathophysiology is still unclear and theories about their origin remain largely speculative. This article reports on a patient with CGL and cystic bone lesions, some of them with unusual magnetic resonance imaging (MRI) findings that include elevated signal intensity on T1-weighted images and fluid-fluid levels, the latter evolving to a more "classic" cystic appearance on follow-up. Even though similar findings were first described almost 30 years ago, little attention was given to them back then; furthermore, other than the present report, no other study has performed sequential exams to follow their evolution in serial MRI. The authors conduct a review of the literature, hypothesizing that these remarkable findings may reflect an intermediate stage in the process of cystification of the abnormal bone marrow, incapable to perform adipose conversion, lending factual support to the modern theories about this issue., Competing Interests: None

Published
2022
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4. Urachal neoplasia: a case report.

Author

da Cruz CL, Fernandes GL, Natal MR, Taveira TR, Bicalho PA, and de Brito YQ

Abstract

Diseases of urachal remnants are uncommon and generally located on the junction of the urachal remnant with the bladder dome. In most cases such diseases correspond to mucinous adenocarcinomas and present hematuria as their most common clinical finding. The authors report the case of a 62-year-old female patient undergoing follow-up due to macroscopic hematuria for three years. Ultrasonography and computed tomography findings are described.

Published
2014
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5. Leiomyosarcoma of the inferior vena cava: a case report.

Author

Nascif RL, Antón AG, Fernandes GL, Dantas GC, Gomes Vde A, and Natal MR

Abstract

The authors report a case of a 48 year-old female patient with moderate abdominal pain and bulging in the abdomen. Physical examination demonstrated the presence of a palpable abdominal mass. Computed tomography showed a heterogeneously enhancing retroperitoneal mass in close contact with the inferior vena cava. En bloc resection of the mass and of the attached vena cava segment was performed. Histological analysis revealed leiomyosarcoma.

Published
2014
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6. Persistent trigeminal artery: angio-tomography and angio-magnetic resonance finding.

Author

Pereira LP, Nepomuceno LA, Coimbra PP, Oliveira Neto SR, and Natal MR

Subjects
Aged, 80 and over, Basilar Artery diagnostic imaging, Carotid Artery, Internal diagnostic imaging, Cerebral Angiography, Female, Humans, Incidental Findings, Intracranial Arteriovenous Malformations complications, Magnetic Resonance Angiography, Middle Aged, Tomography, X-Ray Computed, Young Adult, Arteriovenous Anastomosis diagnostic imaging, Basilar Artery abnormalities, Carotid Artery, Internal abnormalities, Trigeminal Neuralgia etiology
Abstract

The trigeminal artery (TA) is the most common embryonic carotid-vertebrobasilar anastomosis to persist into adulthood. It typically extends from the internal carotid artery to the basilar artery. Persistent primitive arteries are usually found incidentally, but are often associated with vascular malformation, cerebral aneurysm and, in case of TA, with trigeminal neuralgia. We present one patient with TA as a cause of trigeminal neuralgia and in other three as an incidental finding, on TC and MR angiograms.

Published
2009
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7. [Human lagochilascariasis: emphasizing imaging findings].

Author

Furtado-de Mendonça JL, Canuto-Natal MR, Lopes-Viana S, Coimbra PP, Silva NA Jr, Pessoa RC, and Viana MA

Subjects
Adolescent, Animals, Brain parasitology, Helminthiasis diagnosis, Humans, Magnetic Resonance Imaging, Nematoda, Tomography, X-Ray Computed, Helminthiasis pathology
Published
2005

8. Rhombencephalosynapsis: CT and MRI findings.

Author

Mendonca JL, Natal MR, Viana SL, Coimbra PP, Viana MA, and Matsumine M

Subjects
Adolescent, Adult, Cerebellum diagnostic imaging, Cerebellum pathology, Cranial Fossa, Posterior diagnostic imaging, Cranial Fossa, Posterior pathology, Female, Humans, Magnetic Resonance Imaging, Radiography, Rhombencephalon diagnostic imaging, Rhombencephalon pathology, Cerebellum abnormalities, Cranial Fossa, Posterior abnormalities, Rhombencephalon abnormalities
Abstract

An unusual disorder of cerebellar development, rhombencephalosynapsis is a unique entity which presents with cerebellar fusion and absence of cerebellar vermis on imaging studies, often associated with supratentorial findings. No specific clinical syndrome has been described in these patients so far, and most cases are found in infancy and childhood. MRI and its multiplanar capabilities and high spatial and contrast resolution increased its recognition. Two cases are reported, with emphasis on imaging findings.

Published
2004

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