RESUMO
After transplantation, pre-existent vesicoureteral reflux caused a hot paravesical area mimicking urine extravasation.
Assuntos
Transplante de Rim , Refluxo Vesicoureteral/diagnóstico por imagem , Erros de Diagnóstico , Humanos , Rim/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Cintilografia , Refluxo Vesicoureteral/complicaçõesRESUMO
Serial myocardial imaging using thallium Tl 201 was performed in the early follow-up of two patients with orthotopic cardiac transplantation. In one patient, non-homogeneous uptake, small defects and an irregular myocardial edge were observed during a moderately acute rejection crisis revealed by endomyocardial biopsy. The abnormal gammagraphic findings and histological changes were coincident and exhibited a parallel reversal. We emphasize the connection between these two events. The mechanisms which could explain these phenomena are discussed.
Assuntos
Rejeição de Enxerto , Coração/diagnóstico por imagem , Radioisótopos , Tálio , Doença Aguda , Adolescente , Adulto , Biópsia , Transplante de Coração , Humanos , Masculino , Miocárdio/patologia , CintilografiaRESUMO
A 64-year-old man presented with a massive right-sided hydrothorax associated with cirrhosis of the liver. There was no clinical evidence of ascites nor other underlying disease. The usual complementary tests failed to demonstrate any causative abnormality. Chest and abdominal scintigraphy after intraperitoneal injection of 99mTc-human serum albumin disclosed early filling of the pleural space by the radiopharmaceutical and suggested a diaphragmatic defect as the cause for this rare association.
Assuntos
Diafragma/anormalidades , Hidrotórax/diagnóstico por imagem , Cirrose Hepática/diagnóstico por imagem , Humanos , Masculino , Pessoa de Meia-Idade , Cintilografia , Agregado de Albumina Marcado com Tecnécio Tc 99mAssuntos
Carcinoma/radioterapia , Radioisótopos do Iodo/uso terapêutico , Neoplasias da Glândula Tireoide/radioterapia , Carcinoma/metabolismo , Humanos , Radioisótopos do Iodo/efeitos adversos , Radioisótopos do Iodo/metabolismo , Tireoglobulina/análise , Glândula Tireoide/metabolismo , Neoplasias da Glândula Tireoide/metabolismo , Contagem Corporal TotalRESUMO
Interstitial lymphoscintigraphy is a diagnostic method useful in the staging and follow-up of several tumours as well as in the etiological evaluation of limb edema. It is a simple technique with minimal invasivity which can be performed even in those regions inaccesible to radiographic lymphography. Because of its great sensitivity and low specifity it requires careful interpretation.
Assuntos
Linfografia/métodos , Ascite/etiologia , Axila , Neoplasias da Mama/diagnóstico por imagem , Feminino , Humanos , Metástase Linfática , Linfedema/diagnóstico por imagem , Melanoma/diagnóstico por imagem , Pelve , Doses de Radiação , Cintilografia , Neoplasias Urogenitais/diagnóstico por imagemRESUMO
As a consequence of its affinity to leukocytes and tumour cells, 67Gallium-Citrate is a good isotope for detecting infections and tumoral pathology. Its sensitivity is greater for lymphatic system malignancies, primary lung cancer, primary liver carcinoma and melanoma. It is a useful method with more sensitivity than diagnostic specificity.
Assuntos
Radioisótopos de Gálio , Ligação Competitiva , Carcinoma Hepatocelular/diagnóstico por imagem , Fenômenos Químicos , Química , Radioisótopos de Gálio/metabolismo , Humanos , Infecções/diagnóstico por imagem , Ferro/metabolismo , Neoplasias Hepáticas/diagnóstico por imagem , Neoplasias Pulmonares/diagnóstico por imagem , Linfoma/diagnóstico por imagem , Melanoma/diagnóstico por imagem , Cintilografia , Transferrina/metabolismoRESUMO
Urinary leakage after renal transplantation is a serious complication that can lead to diagnostic difficulties. A case is reported of urinoma secondary to ureteral fistula characterized in the routine study by a photon-deficient area. Only the image obtained at 6 h allowed a correct diagnosis. The causes for this are discussed and the need to include a delayed study in the follow-up protocol of these patients is emphasized.