A thymoma is found to invade through the capsule into adjacent mediastinal fat or pleura. What is the stage according to the Masaoka staging system?

A 10-year-old boy presents with a history of abdominal pain and constipation. A contrast-enhanced CT of the abdomen and pelvis was acquired. A single CT coronal image is provided. The boy is at risk of developing which of the following conditions?

A 12-year-old boy with a history of intellectual disability comes to the emergency department because of headaches and more frequently occurring seizures. Brain imaging (CT scan and MRI) shows a heterogeneous intraventricular mass measuring about 18 mm near the foramen of Monro,  with internal calcifications and marked contrast enhancement. Subependymal nodules and cortical tubers are the other imaging findings. Which of the following is the most likely diagnosis?

Which of the following brain tumors is typically associated with the presence of Rosenthal fibers?

Which of the following is the most common location of a central neurocytoma?

This adolescent presents with left anterior knee pain. They are on no medications. A plain film is normal and subsequent imaging is performed. Given the appearance of the CT, what should be done next (imaging/treatment)?

A 40-year-old woman with medically refractory epilepsy has an MRI. This shows a T2W hyperintense region at the right posterior insula, which incompletely suppresses on FLAIR at the periphery. There is no enhancement following intravenous contrast administration. What is the most likely lesion causing this patient's seizures?

A 20-year-old man presents with fever, night sweats and hemoptysis. Based on the history and the chest x-ray what is the most likely diagnosis?

A patient undergoes a F18-FDG PET-CT study for suspected large vessel vasculitis. The imaging shows periarticular increased uptake at the shoulder, hip and sternoclavicular joints, as well as abnormal uptake between the spinous processes of the lumbar spine. What associated condition does the patient have?

What is the most likely cause of this large bowel obstruction with transition point at the splenic flexure on this coronal image?

A 42-year-old female presents for local staging of biopsy-proven cervical adenocarcinoma. MRI shows a barrel-shaped lesion in the cervix that breaches the cervical stromal ring and extends into the parametrium. There is no extension to the pelvic side wall and there are no suspicious nodes on imaging. What is the most likely management pathway?

Which of the following imaging features suggests that a dural lesion could be a meningioma mimic?

A 35-year-old female presents for local staging of biopsy-proven squamous cell carcinoma of the cervix. MRI shows a 1.5 cm intermediate T2 signal intensity lesion in the anterior lip of the cervix at the squamocolumnar junction with no involvement of the upper vagina. In addition, there is a rounded 9 mm short-axis left obturator node that also returns an intermediate T2 signal. What is the International Federation of Gynecology and Obstetrics (FIGO) stage based on imaging?

Based on this T2 weighted fat sat image, what is the most likely diagnosis of this solitary solid splenic lesion?

Which of the following is a molecular subtype of ependymoma associated with a poor prognosis?

Among the different forms of CNS tuberculosis, which specific manifestation involves the formation of tiny, scattered lesions throughout the brain resulting from hematogenous dissemination?

Which of the following is FALSE regarding gangliogliomas?

Which of the following is a good prognostic factor for glioblastoma (GBM)?

In a patient with a diagnosis of glioblastoma (GBM), which of the following are poor prognostic features?

Which of the following metabolites accumulates in patients with isocitrate dehydrogenase (IDH) mutations and results in an increased likelihood of seizures?