Radio-surgical and pathologic correlations of pelvic intravenous leiomyomatosis.

Intravenous leiomyomatosis has an unusual growth pattern characterized by proliferation of smooth muscle in uterine and systemic veins. Although histologically benign, this condition could eventually have a clinically aggressive course. At an early stage, the disease is often misdiagnosed on preoperative imaging because of its low prevalence, non-specific initial clinical manifestation, and poorly known radiological characteristics. An early, accurate diagnosis is needed for appropriate surgical management that could result in a good prognosis, reducing the risk of recurrence and morbidity. Magnetic resonance imaging is a particularly valuable technique for assessing intravenous leiomyomatosis preoperatively.

Calcifications and tungsten deposits after breast-conserving surgery and intraoperative radiotherapy for breast cancer.

AIM: To describe the presence of atypical calcifications on post-operative mammography after breast-conserving surgery (BCS) and intraoperative radiotherapy (IORT). MATERIALS AND METHODS: We retrospectively include all patients followed after BCS and IORT for breast cancer (n=271). All follow-up mammograms at 6 months after surgery were retrospectively evaluated by two board-certified radiologists. The radiologists had to notify the presence or the absence of atypical calcifications. RESULTS: Five patients had on follow-up mammography the presence of atypical calcifications. Two patients had a stereotactic breast biopsy. The pathologic examination showed the presence of small tungsten particles located in the breast parenchyma. CONCLUSION: The presence of atypical calcifications after BCS and IORT, presenting as multiple, scattered, round calcifications, should be rated as BIRADS 2 and do not require biopsy. They corresponded on tungsten deposits.

[CT imaging features of bronchiolitis]. / Aspect TDM des bronchiolites.

Bronchiolitis may be encountered in numerous clinical circumstances. Previous history of smoking, infections, toxic exposure, immunodeficiency, chronic inflammatory disorders or transplantation must be known. CT findings consist in centrilobular micronodules with sharp or ill borders of various density and/or a mosaic attenuation with expiratory air trapping. Tree-in-bud pattern suggest an inflammatory or infectious bronchiolitis. The associated presence of bronchiectasis and bronchiolectasis must be considered. Imaging-pathologic correlations will be presented for inflammatory bronchiolitis (infectious bronchiolitis, hypersensitivity pneumonitis, respiratory bronchiolitis, follicular bronchiolitis, diffuse panbronchiolitis) and fibrosing bronchiolitis (constrictive bronchiolitis, post-infectious bronchiolitis, toxic fume exposure, transplant-related bronchiolitis).