Are brainstem gliomas highly malignant? Are medulloblastomas aggressive, and do they exhibit rapid growth? Are these tumors aggressive (i.e., rapidly growing)? How are these types differentiated? How does a GBM appear on a contrast MRI? In the adult, where do astrocytomas usually occur? In what part of the brainstem are these tumors most often found? In what percentage of cases is a cerebral metastasis solitary? List 10 diagnoses in the differential diagnosis of a sellar or parasellar mass. List eight disorders associated with von Hippel-Lindau syndrome including hemangioblastomas. List four differential diagnoses of a posterior fossa mass in a child. List seven diagnoses in the differential diagnosis of a cerebellar mass in an adult. List seven diagnoses in the differential diagnosis of a pineal region tumor. List three other tumors that occur within the ventricles. Name two other types of glial tumors. On MRI, what are characteristically seen in the mural nodular portions of these tumors? Pituitary tumors account for what percentage of cranial tumors? Vestibular schwannomas usually arise from which branch of the vestibulo-cochlear nerve (cranial nerve VIII)? What are the common types of adult astrocytoma? What are the contrast characteristics of germ cell tumors on T1-weighted and T2-weighted MRI? What are the typical signal characteristics of tumor on T2-weighted MRI? What are the typical signal characteristics of tumor on noncontrast T1-weighted MRI? What are two broad categories of intracranial masses based on location? What cranial nerve is most commonly involved? What do hemangioblastomas look like on CT? What do medulloblastomas look like on MRI? What does a meningioma look like on T1-weighted MRI? What does a meningioma look like on contrast CT? What does a meningioma look like on contrast T1-weighted MRI? What does a meningioma look like on noncontrast CT? What does a teratoma look like on MRI? What does juvenile pilocytic astrocytoma look like on MRI? What four other lesions are in the differential diagnosis of multiple enhancing lesions? What four tumors account for nearly 95% of these lesions? What is Meckel's cave? What is a characteristic change in the bone adjacent to a meningioma? What is acoustic schwannoma? What is an empty sella? What is an epidermoid? What is in it? What is the anatomic key for differentiating a schwannoma from a meningioma in this region with imaging? What is the appearance on CT or MRI? What is the classic appearance of an ependymoma on MRI? What is the imaging test of choice for evaluation of brain tumors? What is the imaging test of choice for vestibular schwannomas? What is the most common extra-axial tumor? What is the most common location for an extra-axial posterior fossa tumor in an adult? What is the most common primary cerebellar tumor in adults? What is the most common tumor of the sella? What is the most common type of glial tumor? What is the other type of neurofibromatosis and its characteristics? What is the peak age of occurrence? What is the preferred imaging modality for evaluation of this region? What is the signal characteristic of this tumor on enhanced T1-weighted images? What is the treatment for a solitary metastasis? What percentage of brain tumors are meningiomas? What percentage of meningiomas are benign? What percentage of newly diagnosed brain tumors in adults are of glial origin? What percentage of newly discovered brain tumors in adults are metastatic? What percentage of primary intracranial tumors are schwannomas of cranial nerves? What physiologic property of neoplastic brain tissue accounts for these signal characteristics? What syndrome accounts for 10% of these tumors? What two types of tumors account for 80% of metastatic brain lesions? What will be seen on contrast-enhanced CT or MRI? Where are ependymomas typically located? Where are juvenile pilocytic astrocytomas usually located? Where are metastatic brain tumors usually located? Which brain metastases tend to cause intracranial hemorrhage? Which cerebellar mass is most common in adults? Why do many tumors enhance? Book traversal links for Brain tumors ‹ Neurologic disorders Up Are brainstem gliomas highly malignant? ›