Mesenteric panniculitis presenting with acute non-occlusive colonic ischemia.

Background: The role of positron emission tomography (PET) of the mesentery as a diagnostic modality in cases of mesenteric panniculitis is unclear.

Case Presentation: A 67-year-old woman presented with rectal bleeding due to nonocclusive colonic ischemia. Abdominal CT showed features of mesenteric panniculitis.

Thromboembolism in pulmonary artery sarcoma.

Pulmonary artery sarcoma, although rare, must be considered in the differential diagnosis of pulmonary thromboembolism. Clinically and radiologically, it may imitate pulmonary embolism, making diagnosis difficult and delaying treatment. Patients often have no symptom resolution despite therapeutic anticoagulation.

Technetium-99m-sestamibi scintigraphy: an alternative approach for diagnosis and follow-up of active myeloma lesions after high-dose chemotherapy and autologous stem cell transplantation.

Technetium-99m-sestamibi (MIBI) is a radionuclide tracer taken up by different malignant tumors. A total of 88 MIBI scans were carried out in 20 individuals with monoclonal gammopathy of unknown significance (MGUS) and 10 patients during follow-up for other cancers. Of these 58 MIBI scans were carried out in 46 myeloma patients: 15 at diagnosis, 14 during conventional chemotherapy, and 29 following high-dose sequential therapy and autologous peripheral blood progenitor support.

[Planar myocardial scintigraphy with technetium-99m-sestamibi in acute myocardial infarct treated with thrombolytic therapy].

Background: Nuclear cardiology permits the estimation of the myocardial infarction size and the result of the thrombolytic therapy. The aim of the study was to demonstrate the feasibility of the planar myocardial scintigraphy with Technetium-99-m-sestamibi in the coronary intensive care unit for the early identification of the infarct size and the result of the thrombolytic therapy.

Materials And Methods: We considered 10 patients affected by a first myocardial infarction (5 anterior and 5 inferior wall) then treated with thrombolytic therapy (APSAC 30 U.

[Exercise 201-thallium myocardial scintigraphy in left bundle branch block].

Background: Reduced septal uptake of 201-Thallium in patients with left bundle branch block is reported in literature as having a variable frequency (between 14% and 100%) and in such patients the value of exercise Thallium-scintigraphy for the diagnosis of the left anterior descending coronary artery disease is limited by the great number of false-positive tests. The aim of this study was to assess the prevalence and the diagnostic sensitivity of this septal defect in a group of patients with left bundle branch block.

Methods: We evaluated the exercise 201-Thallium myocardial scintigraphy of 54 patients with a stable left bundle branch block.

[Identification of viable myocardium by 201Tl scintigraphy: a comparison of methods].

The present study was undertaken to compare four different imaging approaches to evaluate uptake defect reversibility. 24 infarcted patients underwent standard stress/redistribution 201Tl imaging (R1). Then, after reinjection of 37 MBq of 201Tl, patients were re-imaged either after 15 min (R2) 24 h later (R3).

[The adenosine test in association with 99m-technetium sestamibi tomoscintigraphy in the diagnosis of coronary pathology].

Background: The exogenous adenosine is able to provoke a coronary vasodilation, which is the same as the one provoked by the papaverine and greater than the one provoked by the dipyridamole. We report our experience in using exogenous adenosine in association with technetium-99m-sestamibi tomoscintigraphy for a diagnostic test on the coronary artery disease (CAD).

Methods: We considered 22 patients (18 male and 4 female, mean age 57 years) affected by angiographically demonstrated coronary artery disease (stenoses > or = 50%).