This study reports on the application of the MOSkinTM dosimeter in MSCT imaging for the real-time measurement of absorbed organ point doses in a tissue-equivalent female anthropomorphic phantom. MOSkinTM dosimeters were placed within the phantom to measure absorbed point organ doses for 2 commonly applied clinical scan protocols, namely the renal calculus scan and the pulmonary embolus scan. Me...

From about two years he was followed for pulmonary hypertension in patients symptomatic for exertional dyspnea (NYHA class II). Performed chest Computed Tomographic (CT) scan that showed no pulmonary thromboembolism (TEP). Pulmonary Artery diameter: 35 mm. Aorta with atheromatous plaques. Multiple mixedtype ulcerated, mainly to ‘bow and downslope. Presence of isolated bubbles of emphysema in th...

The occurrence of pulmonary emboli in 617 patients admitted to a respiratory intensive care unit was studied. Pulmonary emboli were found in 18 (27 percent) of 66 autopsies. Half of these pulmonary emboli were not diagnosed before death, despite persistent aggressive attempts to document pulmonary emboli. In this subpopulation of patients with respiratory failure, the usual clinical manifestati...

Pulmonary arterial hypertension (PAH) is defined as a group of diseases characterized by a progressive increase in pulmonary vascular resistance leading to right ventricular failure and premature death. Recently, the diagnostic approach has been more clearly defined according to the new clinical classification and with consensus reached on algorithms of various investigative tests and procedure...

Chest X-ray is a usual tool for family physicians; however, unexpected findings in chest X-ray are a frequent challenge. We present a rare case of pulmonary hilar nodule misdiagnosis in a chest X-ray. An 84-year-old woman was sent with a diagnosis of a right pulmonary hilum nodule. She had a history of chronic obstructive pulmonary disease; so in a chest X-ray, her family physician discovered a...

A 22-year-old woman presented with acute left-sided pleuritic chest pain and dyspnea 6 days after surgery for revision of the stenotic central aortopulmonary shunt. She had a history of tetralogy of Fallot (TOF), pulmonary valve stenosis, ventricular septal defect and major aortopulmonary collateral artery. Her Waterston shunt was placed when she was 5 years old and stented and re-dilated after...

A good knowledge of clinical presentation and of risk factors for pulmonary embolism is mandatory to improve adequate clinical suspicion. Some recent improvements in diagnostic strategy have to be emphasized. A low D-dimer level has a good negative predictive value to rule out pulmonary embolism. Ventilation-perfusion lung scan is the most often used imaging technique. In case of non diagnostic...

A 56-yr-old man, two months after an operation for an acoustic neurinoma, gradually developed dyspnea. Massive pulmonary embolism (MPE), with a significant right-to-left (R-L) shunt, was seen in a perfusion scan of the lungs with Tc-99m MAA. Radioactivity was noted in the thyroid, spleen, kidneys and brain. A cardiac ultrasound study did not reveal intracardiac shunting. A few days later, when ...

RATIONALE Primary extracranial meningiomas are rare outside the head and neck region. PATIENT CONCERNS A 44-year-old female patient had chest pain for more than 1 year. DIAGNOSES Preoperative chest computed tomography (CT) scan revealed a nodule in the right lower lobe, 1.8 cm in diameter. Tumor tissues were examined by immunohistochemistry for vimentin and S-100. INTERVENTIONS Histopatho...

INTRODUCTION The occurrence of an intravascular lymphoma with severe pulmonary involvement mimicking pulmonary embolism is described. CASE PRESENTATION A 38-year-old man was referred to our intensive care unit with acute respiratory failure and long lasting fever. Appropriate investigations failed to demonstrate any bacterial, viral, parasitic or mycobacterial infection. A chest computed tomo...