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Question 1
According to the 2021 WHO Classification of Tumors of the Central Nervous System, which molecular or histopathological feature is required to diagnose an adult diffuse astrocytoma as a Glioblastoma, IDH-wildtype (CNS WHO Grade 4), even in the absence of microvascular proliferation or necrosis?
Correct Answer:
EGFR amplification, TERT promoter mutation, or combined +7/-10 chromosome copy number changes
Question 2
Which Simpson grade of meningioma resection corresponds to macroscopically complete tumor removal with excision of its dural attachment and any abnormal hyperostotic bone?
Correct Answer:
Simpson Grade I
Question 3
A 38-year-old male undergoes gross total resection of a left frontal lobe mass. Histopathology demonstrates a diffuse glioma with uniform round nuclei and perinuclear halos ('fried-egg' appearance). Molecular analysis reveals an IDH1 R132H mutation and complete 1p/19q co-deletion. What is the definitive diagnosis and therapeutic implication?
Correct Answer:
Oligodendroglioma, IDH-mutant and 1p/19q-codeleted (WHO Grade 2 or 3); confers marked chemo-radiosensitivity to PCV
Question 4
An IDH-mutant diffuse astrocytoma without microvascular proliferation or necrosis demonstrates homozygous deletion of CDKN2A/CDKN2B on fluorescence in situ hybridization (FISH). According to WHO 2021 criteria, what is the assigned tumor grade?
Correct Answer:
CNS WHO Grade 4
Question 5
A 52-year-old female presents with progressive hearing loss and ataxia. Brain MRI demonstrates a 3.8 cm cerebellopontine angle mass filling the internal auditory canal and cerebellopontine cistern, displacing the brainstem and deforming the fourth ventricle. What is the Koos classification grade of this vestibular schwannoma?
Correct Answer:
Koos Grade IV
Question 1
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Prepare with the Arab Board Neurosurgery Final Written Practice Questions - Arab Board Neurosurgery Final Written Examination Exam practice quiz. This question bank includes 100 questions covering year-old, presents, brain, surgical, and male. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Arab Board Neurosurgery Final Written Practice Questions - Arab Board Neurosurgery Final Written Examination Exam

This practice set contains 100 questions from the matching question bank and focuses on year-old, presents, brain, surgical, and male. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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