[Pulmonary lymphangioleiomyomatosis in a menopaused woman].

We report an unusual case of pulmonary lymphangioleiomyomatosis in a menopaused woman who had been taking estrogen hormone replacement therapy for several years. The characteristic feature of this uncommon disease is a proliferation of non-tumoral abnormal smooth muscle cells within the alveolar walls, and around the bronchi, lymph nodes and blood vessels. About twenty cases of pulmonary lymphangioleiomyomatosis have been described in menopaused women, who generally were taking estrogen hormone replacement therapy.

[Magnetic resonance angiography of the cervical and superior mediastinal veins].

Purpose: To evaluate magnetic resonance venography (MRV) in the detection of cervical/mediastinal venous thrombosis (CMVT).

Methods: MR venograms were performed in 20 patients suspected for CMVT. 2D-TOF MR venography was used for all studies.

Pulmonary MR angiography at 1.0 T: early results with k-space segmented and post-contrast TurboFLASH two-dimensional time-of-flight sequences.

Purpose: To evaluate the combined performance of two time-of-flight methods in imaging the pulmonary arteries.

Materials And Methods: This study was prospectively conducted in 28 patients suspected for pulmonary embolism (PE). Sixteen patients were free of pulmonary vascular disease, and 12 had pulmonary vascular disease as demonstrated by pulmonary angiography.

Abdominal aortic aneurysms: assessment with gadolinium-enhanced time-of-flight coronal MR angiography (MRA).

A prospective study was performed to evaluate the efficacy of a gadolinium-chelate-enhanced MR angiography (MRA) using a coronal acquisition in the preoperative assessment of aneurysms of the abdominal aorta (AAA). Twenty patients with AAA were explored with MR using a two-dimensional (2D) time-of-flight MRA technique with a coronal acquisition, before and after intravenous administration of 0.1 mmol/kg of a gadolinium-chelate.

Thoracic aortic dissection: diagnosis with transesophageal echocardiography versus MR imaging.

Purpose: To compare transesophageal echocardiography (TEE) and magnetic resonance (MR) imaging in the diagnosis of dissection of the thoracic aorta.

Materials And Methods: Thirty-one consecutive patients with clinically suspected aortic dissection and 10 postoperative patients underwent transesophageal color Doppler echocardiography and MR imaging. Imaging results were compared at independent double-blind readings.