影像大题（Big picture problem）.docVIP

影像大题（Big picture problem） 1, the X-ray manifestations of left atrium enlargement Answer: (1) in the left anterior posterior margin showed four or four arc arch syndrome syndrome (2) in the posterior anterior position of right heart margin visible double real shadow or double arc. (3) right anterior oblique visible esophageal atrial impression even deepen backwards (4) the left anterior oblique visible left main bronchus lift Skull radiographs showed intracranial hypertension, 2 Answer: (1) in children presenting with head fontanelle increased, widened, cranial plate thinning, separation of cranial sutures, digitate impressions increased (2) in the adult is mainly manifested as sella, sellae and sellar bone blurred or disappeared The X-ray manifestations of invasive pulmonary tuberculosis Answer: (1) good parts: multi zone and dorsal segment of lower lobe in apical, supraclavicular (2) lesions often exist exudation, proliferation, fibrosis, and dissemination of a variety of diseases at the same time empty. (3) showed small flocculent shadow edge density and wormhole like fuzzy empty shadow. (4) tuberculoma: clear edge, burr, occasional leaf, the lesion often satellite. Can be layered, annular or calcification spots inside the ball. (5) caseous pneumonia: the performance of lobular pulmonary opacities scattered. Complications of fracture Answer: (1) fracture delayed union or nonunion (2) malunion (3) post-traumatic osteoporosis (4) bone and joint infection (5) ischemic necrosis of bone (6) ankylosis (7) joint degeneration (8) myositis ossificans Features of chest malignant tumors in CT images Answer: (1) the majority of the lesions a lobulated or notch (2) around the mass may have burr radial, short and thin (3) pleural indentation (4) vascular texture shadow masses near hilum visible disorder together (5) to the edge of a mass showed bronchial wall thickening and narrowing or truncation (6) have obvious mediastinal lymph node enlargement (7) could invade the soft tis