中国大学MOOC: A 21-year-old football player is admitted to the emergency department with severe back pain. A radiograph reveals a fractured angle of the eleventh rib on the left side. Which of the following organs is most likely at risk for injury?

中国大学MOOC: A 41-year-old man is admitted to the emergency department with complaints of shortness of breath, dizziness, and sharp chest pain. As shown in the following figure, the abnormal area in his chest radiograph indicates the region of pathology. What is this structure?【图片】

A 21-year-old football player is admitted to the emergency department with severe back pain. A radiograph reveals a fractured angle of the eleventh rib on the left side. Which of the following organs A: Stomach B: Descending colon C: Kidney D: Liver E: Pancreas

A 41-year-old man is admitted to the emergency department with complaints of shortness of breath, dizziness, and sharp chest pain. As shown in the following figure, the abnormal area in his chest radiograph indicates the region of pathology. What is this structure?[img=779x879]1803481875206fd.png[/img] A: Superior vena cava B: Right ventricle C: Left ventricle D: Arch of the aorta

A 3-mo-old female infant has a history of poor feeding, shortness of breath during feedings, failure to thrive, and chronic cough. Physical examination reveals tachycardia and a gallop rhythm but no murmur. There is hepatomegaly but no cyanosis. A chest radiograph reveals cardiomegaly. The most appropriate diagnostic test is: A: Echocardiogram B: Electrocardiogram C: Blood culture D: Serum amino acids E: Urine pH

A 41-year-old man is admitted to the emergency department with complaints of shortness of breath, dizziness, and sharp chest pain. As shown in the following figure, the abnormal area in his chest radiograph indicates the region of pathology. What is this structure?[img=779x879]18030c08034d883.png[/img] A: Superior vena cava B: Right ventricle C: Left ventricle D: Arch of the aorta E: Pulmonary artery

24. A 50-year-old man developed truncal obesity, back pain, and skin that bruises easily over the past 5 months. On physical examination, he is afebrile, and his blood pressure is 160/95 mm Hg. A chest radiograph shows an ill-defined, 4-cm mass involving the left hilum of the lung. Cytologic examination of bronchial washings from bronchoscopy shows round epithelial cells that have the appearance of lymphocytes but are larger. The patient is told that, although his disease is apparently localized to one side of the chest cavity, surgical treatment is unlikely to be curative. He also is advised to stop smoking. Which of the following neoplasms is most likely to be present in this patient?

A 40-year-old woman has noted enlargement of her anterior neck region over the past 8 months. On physical examination her vital signs include T 36.8°C， P 64/minute， RR 16/minute， and BP 155/105 mm Hg. There is diffuse， symmetrical thyroid enlargement without tenderness. A chest radiograph is normal. Fine needle aspiration of the thyroid yields cells consistent with a neoplasm. Laboratory studies show that she is euthyroid， but her serum ionized calcium is elevated. She is taken to surgery and frozen sections of several thyroid masses show a malignant neoplasm composed of polygonal cells in nests. A thyroidectomy is performed. Immunostaining for calcitonin of the permanent sections is positive， and the neoplasm has an amyloid stroma with Congo red staining. Which of the following neoplasms is she most likely to have？（ ） A: Anaplastic carcinoma B: Medullary carcinoma C: Papillary thyroid carcinoma D: Metastatic renal cell carcinoma E: Parathyroid carcinoma