RESUMO
Polyarteritis nodosa (PAN) is a necrotizing vasculitis involving small and medium-sized arteries and it affects multiple organ systems in the body Central nervous system (CNS) involvement appears less frequently, and usually develops after the disease is established. Although aneurysms are common in visceral arteries in PAN, intracranial aneurysms are uncommon and have been documented rarely. This case is reported to raise awareness among radiologists as it has characteristic and rare, if not specific, imaging findings of CNS involvement of PAN.
Assuntos
Poliarterite Nodosa/diagnóstico , Tomografia Computadorizada por Raios X , Adolescente , Angiografia Cerebral , Humanos , Imageamento por Ressonância Magnética , Masculino , Poliarterite Nodosa/diagnóstico por imagemAssuntos
Neoplasias Cardíacas/diagnóstico , Leiomiomatose/diagnóstico , Imageamento por Ressonância Magnética , Neoplasias Uterinas/diagnóstico , Neoplasias Vasculares/diagnóstico , Veia Cava Inferior/patologia , Evolução Fatal , Feminino , Átrios do Coração/patologia , Humanos , Pessoa de Meia-Idade , Invasividade Neoplásica , Células Neoplásicas Circulantes/patologiaRESUMO
Sjögren-Larsson syndrome (SLS) is a rare disorder with autosomal recessive inheritance. Its clinical, pathological, genetic, and biochemical manifestations have been thoroughly evaluated, but there is little imaging data, especially regarding MRI. We present brain MRI of three siblings with SLS and discuss our findings.
Assuntos
Encéfalo/patologia , Imageamento por Ressonância Magnética , Síndrome de Sjogren-Larsson/diagnóstico , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Núcleo Familiar , Síndrome de Sjogren-Larsson/genéticaRESUMO
Hereditary osteo-onychodysplasia, also known as the nail-patella syndrome (NPS), consists of a clinical tetrad of nail dysplasia, hypoplastic or absent patella, radial head dislocation, and iliac horns. Bilateral posterior iliac horns are observed only in NPS and present in >80% of patients. We describe the appearance, location, and structure of iliac horns by CT, MRI, and 3-dimensional CT reconstruction.
Assuntos
Ílio/diagnóstico por imagem , Síndrome da Unha-Patela/diagnóstico por imagem , Adulto , Humanos , Ílio/anormalidades , Processamento de Imagem Assistida por Computador , Masculino , Tomografia Computadorizada por Raios XRESUMO
An extremely rare case of metastatic squamous cell skin carcinoma to the breast is reported with imaging features. Ultrasonography and magnetic resonance imaging revealed well circumscribed, complex solid masses with papillary fronds projecting into cystic centres.
Assuntos
Neoplasias da Mama/diagnóstico , Neoplasias da Mama/secundário , Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/secundário , Neoplasias Cutâneas/patologia , Adulto , Diagnóstico por Imagem , Feminino , Humanos , MamografiaRESUMO
Balo's concentric sclerosis was diagnosed antemortem in 2 patients, by magnetic resonance (MR) imaging showing striking concentric alternating rings in 1 patient and by characteristic histopathological features in the other. The course of the lesions and the concentric pattern were followed by MR imaging for 3 years and 18 months, respectively. One patient demonstrated spontaneous remission that has not been reported in Balo's disease. Balo's disease may not have a fulminant course as described in the past and the MR appearance of the chronic lesion may resemble that of a chronic multiple sclerosis plaque.
Assuntos
Esclerose Cerebral Difusa de Schilder/diagnóstico , Imageamento por Ressonância Magnética , Adulto , Encefalopatias/diagnóstico , Encefalopatias/patologia , Meios de Contraste , Esclerose Cerebral Difusa de Schilder/patologia , Feminino , Seguimentos , Gadolínio , Gadolínio DTPA , Humanos , Aumento da Imagem , Esclerose Múltipla/diagnóstico , Esclerose Múltipla/patologia , Compostos Organometálicos , Ácido Pentético/análogos & derivados , Remissão EspontâneaRESUMO
Lateral sinus radiograph is helpful in determining the distances between certain anatomic landmarks in preparation for endonasal endoscopic sinus surgery. However, some misleading factors limit the usefulness of this radiograph. In this study these distances were measured in 49 patients and compared with measurements obtained from another imaging modality, magnetic resonance imaging, which provides more accurate measurements. Results show a discrepancy in the measurements of distances between some of these landmarks that cannot be explained by the factor of magnification alone on the sinus radiographs. Statistical analysis of the results for women revealed a significant discrepancy between the distances from the nasal spine to the midfovea ethmoidalis, the sphenoethmoid junction, and the posterior sphenoid wall as measured on MR images and those as measured on lateral sinus radiographs (P < .05). For men the same was true for the distances from the nasal spine to the midfovea ethmoidalis and the posterior sphenoid wall (P < .05). It is concluded that there should be reservations in the surgical application of data provided by the lateral sinus radiograph before endoscopic sinus surgery.
Assuntos
Seios Paranasais/diagnóstico por imagem , Seios Paranasais/patologia , Adulto , Idoso , Endoscopia , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Seios Paranasais/cirurgia , Cuidados Pré-Operatórios , RadiografiaRESUMO
Computed tomographic and magnetic resonance imaging findings of a splenic leiomyoma in an 8-year-old boy with ataxia telangiectasia are presented. This is the first reported case of a splenic leiomyoma in the literature.