Segmental pulmonary artery transection after blunt trauma.

We herein describe a patient with segmental pulmonary artery transection after blunt trauma, which was diagnosed preoperatively by computed tomography. Bolus tracking contrast-enhanced computed tomography clearly depicted both aortic and pulmonary vasculatures. A one-step examination quickly disclosed aortic damage and injury to significant visceral organs. To the best of our knowledge, our patient appeared to be a unique case of pulmonary segmental artery transection after blunt injury, which was preoperatively diagnosed by computed tomography. Ultimately, successful surgical repair of the pulmonary artery was performed.

Primary cardiac fibroma in an infant: computed tomography and magnetic resonance imaging findings.

Cardiac fibromas (CFs) are benign primary tumors that typically occur during childhood and may be asymptomatic. However, due to the proximity of CFs to the cardiac structure, significant morbidity and mortality may also be anticipated. CFs do not show spontaneous regression and surgical resection generally remains the treatment of choice for these tumors in children. Thus, it is important to take aggressive steps to obtain accurate pretreatment image diagnosis. A full-term male infant was presented to our facility suffering from shortness of breath, after an episode of upper respiratory tract infection at age 1.5 months. Subsequent chest X-ray revealed widening of the mediastinum and trachea deviation. Cardiogenic pathology was suspected. Computed tomography and magnetic resonance imaging were performed, and we confirmed a diagnosis of benign CF. Thoracotomy biopsy of the tumor confirmed the pathological diagnosis.

Gray-scale and color Doppler ultrasonographic features of pleomorphic adenoma and Warthin's tumor in major salivary glands.

UNLABELLED: Our aim was to assess the specific ultrasonic characteristics of pleomorphic adenoma and Warthin's tumor in major salivary glands. METHODS: We retrospectively reviewed and analyzed the ultrasonographic (US) features of 19 pleomorphic adenomas in 16 patients and 29 Warthin's tumors in 20 patients. The features included tumor size, echotexture, boundary, and shape on gray-scale US imaging and grading and distribution of tumor vascularity on color Doppler ultrasound (CDU). RESULTS: All lesions were hypoechoic, and only 22.9% had a homogeneous echotexture. Most of the tumors (87.5%) were >or=10 mm, and 93.8% were well defined. On CDU, 91.7% had intermediate (+ and ++) grades of vascularity. Only two of 29 Warthin's tumors had the highest grade of vascularity (+++). Predominantly central blood flow was present in 58.6% of Warthin's tumors and 42.1% of pleomorphic adenomas. Lobulated margin (shape) was noted in 84.2% of pleomorphic adenomas and 51.7% of Warthin's tumors (P<.05). Anechoic cystic components were present in 13 (44.8%) of 29 Warthin's tumors and in only one pleomorphic adenoma (1/19, 5.3%) (P<.01). CONCLUSION: Most pleomorphic adenomas were lobulated. Internal anechoic cystic components were absent from pleomorphic adenomas but present in some Warthin's tumors. The grading and distribution of blood flow signals on CDU provided only limited additional diagnostic information for distinguishing pleomorphic adenomas from Warthin's tumors. Gray-scale ultrasonography is a useful method for evaluating and distinguishing pleomorphic adenomas from Warthin's tumors.