RESUMO
Ganglioneuromas are rare, benign, well-differentiated, slowgrowing tumors of the sympathetic nervous system, composed of large, mature neurons in a stroma composed of Schwann cells. Ganglioneuromas are derived from the neural crest cells and can arise anywhere from the base of the skull to the pelvis. The pre-sacral area is a very rare location for ganglioneuromas to develop. We describe the case of a 31 year old woman, who was incidentally found to have an abnormal pre-sacral mass. The following work-up, revealed the mass to be growing on imagery (computed tomography and magnetic resonance imagery) and fluorine-18 fluorodeoxiglucose avid. The mass was removed by assisted laparoscopy and was found to be a benign ganglioneuroma. This is the first described case of fluorine-18 fluorodeoxiglucose avid, pre-sacral, benign ganglioneuroma.
Assuntos
Fluordesoxiglucose F18 , Ganglioneuroma/diagnóstico , Imageamento por Ressonância Magnética/métodos , Neoplasias do Sistema Nervoso Periférico/diagnóstico , Tomografia por Emissão de Pósitrons/métodos , Adulto , Diagnóstico Diferencial , Feminino , Fluordesoxiglucose F18/farmacocinética , Ganglioneuroma/metabolismo , Humanos , Laparoscopia , Plexo Lombossacral , Estadiamento de Neoplasias , Neoplasias do Sistema Nervoso Periférico/metabolismo , Compostos Radiofarmacêuticos/farmacocinéticaRESUMO
We report a case of radiation-induced hepatic injury as a complication of localized abdominal radiotherapy for epidural spread of non-Hodgkin's lymphoma. The liver was evaluated by triphasic contrast enhanced helical CT scan. Hepatic biopsy demonstrated changes typical of veno-occlusive disease. The pattern of hepatic enhancement resulting from the radiation-induced veno-occlusive process is discussed.
Assuntos
Hepatopatias/diagnóstico por imagem , Fígado/efeitos da radiação , Linfoma de Célula do Manto/radioterapia , Lesões por Radiação/diagnóstico por imagem , Tomografia Computadorizada por Raios X/métodos , Doença Aguda , Idoso , Meios de Contraste , Hemodinâmica , Humanos , Fígado/diagnóstico por imagem , Circulação Hepática/efeitos da radiação , Hepatopatias/etiologia , Masculino , Lesões por Radiação/etiologiaRESUMO
Partial nephrectomy and tumour enucleation are increasingly accepted as an organ sparing approach for small renal cell carcinomas. Repeated computed tomography or sonography for the early detection of tumour recurrence are mandatory during the follow-up. We report two cases of renal pseudotumour mimicking a tumour recurrence: one case is related to the pseudotumoral appearance on sonography of a tumour defect filled by a fatty flap, and the other to the relative migration of an accessory spleen into the site of the cuneiform nephrectomy. The recognition of renal pseudotumours following partial nephrectomy prevents confusion with tumour recurrence on follow-up examinations.
Assuntos
Carcinoma de Células Renais/diagnóstico , Nefropatias/diagnóstico , Neoplasias Renais/diagnóstico , Recidiva Local de Neoplasia/diagnóstico , Nefrectomia , Adulto , Carcinoma de Células Renais/cirurgia , Diagnóstico Diferencial , Feminino , Humanos , Neoplasias Renais/cirurgia , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Tomografia Computadorizada por Raios XRESUMO
Intraductal papillary-mucinous tumor of the pancreas (IPMT) is an uncommon entity, defined as an intraductal papillary proliferation of mucin-producing epithelial cells. Since the original description of the disease by Ohhashi in 1982, the definition and the classification of the disease has remained confused until the recently published classification of the World Health Organisation (WHO). The purpose of this article is therefore to report the clinico-pathological features of IPMT according to the WHO classification, to illustrate the radiological features especially the computed tomographic signs and to discute of the treatment.