PLE-819

A 62-year-old woman is discovered to have ocular lymphoma infiltrating her optic canal. Which of the following structures would be most likely affected?

PLE-816

A 6-year-old boy with breathing difficulty, chest pain, and cough was admitted to a local hospital. The pediatrician who examined the boy, along with laboratory results, diagnosed the child as having cystic fibrosis. Which of the following structures is most likely blocked?

PLE-817

A 6-year-old girl comes to the emergency department with severe diarrhea. Tests show that the diarrhea is due to decreased capacity of normal absorption in one of her organs. Which of the following organs is involved?

PLE-812

A 59-year-old woman comes to a hospital and complains of progressive loss of voice, numbness, loss of taste on the back part of her tongue, and difficulty in shrugging her shoulders. Her MRI scan reveals a dural meningioma that compresses the nerves leaving the skull. These nerves leave the skull through which of the following openings?

PLE-813

A 6-day-old baby is diagnosed as having congenital neonatal emphysema, which is caused by collapsed bronchi because of failure of bronchial cartilage development. Bronchial cartilages are derived from which of the following derivations?

PLE-814

A 6-month-old boy is admitted to the children’s hospital because of urine being expelled from the dorsal aspect of the penis. Which of the following embryological structures failed to fuse in this patient?

PLE-815

A 6-year-old boy falls from a tree house and is brought to the emergency department of a local hospital. On examination, he has weakness in rotating his arm laterally because of an injury of a nerve. Which of the following conditions is most likely to cause a loss of this nerve function?

PLE-808

A 58-year-old woman with pain at the side of her skull comes to the emergency department. An emergent head CT scan shows a large lesion in the internal auditory meatus. This condition may progress and damage which of the following pairs of structures?

PLE-809

A 59-year-old man is admitted to a hospital with severe abdominal pain, nausea, and vomiting resulting in dehydration. Emergency CT scan reveals a tumor located between the celiac trunk and the superior mesenteric artery. Which of the following structures is likely compressed by this tumor?