Bone scintigraphy in chondroblastoma

Scintigraphy in 3 patients with chondroblastoma showed that the tumors were hyperemic and avidly accumulated the radionuclide. These changes were also present in adjacent normal bone, but to a lesser degree. This suggest that radionuclide uptake in chondroblastoma is a function of the blood supply to the tumor rather than primary matrix extraction.     

Neonatal brain: color Doppler imaging. Part I. Technique and vascular anatomy

Color Doppler imaging (CDI) can demonstrate the relative direction and velocity of blood flow in color, superimposed on a conventional gray-scale ultrasound image that depicts stationary tissue. Twenty-five infants were studied with portable CDI in the coronal, sagittal, and axial planes. Bilateral antegrade flow was noted in the anterior, middle, and posterior cerebral arteries in all patients. Multiplanar CDI can image flow in the circle of Willis and its tributaries and branches.     

脑益嗪对实验性脑血栓形成及血小板聚集的抑制作用

本文报道脑益嗪对大鼠实验性脑血栓形成及兔血小板聚集的抑制作用。经大鼠颈动脉顺行注射复合血栓诱导剂造成脑血栓模型,测定伊文思兰通过血脑屏障渗入脑实质的量以反映脑血栓的严重程度。结果表明脑益嗪(67 mg/kg,灌胃)有抗脑血栓形成的作用。半体内实验表明脑益嗪(34 mg/kg,灌胃)可抑制兔血小板聚集。     

Spontaneous pneumothorax in primary cavitating lung carcinoma

Primary cavitating lung carcinomas have not previously been described with spontaneous pneumothorax as the presenting manifestation. Two patients whose pneumothoraces resulted in the initial diagnosis of a primary cavitary lung carcinoma are described. Pathologic evidence of vascular invasion suggests tumor necrosis with secondary rupture into the pleural space as a likely mechanism for pneumothorax.