Dose Grid-Clinical Oncology UPDATED
ACTUAL Exam Questions and CORRECT
Answers
What is the most common type of brain cancer? - CORRECT ANSWER - astrocytoma
(type of glioma)
Where do brain cancers tend to spread to? - CORRECT ANSWER - lung
Sella turcica - CORRECT ANSWER - -endocrine gland
-two lobes
-midline
(anterior to the midbrain, pons, medulla)
(sphenoid sinus is anterior to the sella turcica)
Blood brain barrier - CORRECT ANSWER - protects the brain from toxic compounds;
allows only lipid soluble to pass through
Statistics of neuroblastoma: - CORRECT ANSWER - -3rd most common childhood
cancer
-most common extracranial solid malignancy of childhood
-most common malignancy in infants (1/2 cases)
-60% have already metastasized at presentation
Types of leukemia: - CORRECT ANSWER - ALL (acute lymphocytic leukemia)-74%;
usually in children
AML (acute myeloid leukemia)-32%; adults
, CML (chronic myeloid leukemia)- chronic, slow progression, few symptoms, *philedelphia
chromosome
CLL
Treatment for leukemia: - CORRECT ANSWER - -chemo
-bone marrow transplant-TBI (12Gy)
Where is the most common site of mets from HN cancer? - CORRECT ANSWER - to the
lung
Where is lip cancer usually at? - CORRECT ANSWER - mostly on the lower lip and
spread by direct invasion
-sunlight
Where is the most common location that squamous cell carcinoma of oral cavity cancer occurs
(excluding lip)? - CORRECT ANSWER - most common= tongue
second most common= floor of mouth
(both most likely to include lymphatic involvement)
Treatment for oral cavity and pharynx cancer? - CORRECT ANSWER - 1. surgery
2. radiation>>>laterals or IMRT; if nodes are involved then AP supraclav with larynx shield
3. HDR interstitial with Ir-192
Sinus location - CORRECT ANSWER - Sagittal view starting anterior: frontal, ethmoid,
sphenoid, maxillary sinus inf of ethmoid
Frontal view: frontal, ethmoid, maxillary sinus (can't see sphenoid on frontal because it is
posterior)
ACTUAL Exam Questions and CORRECT
Answers
What is the most common type of brain cancer? - CORRECT ANSWER - astrocytoma
(type of glioma)
Where do brain cancers tend to spread to? - CORRECT ANSWER - lung
Sella turcica - CORRECT ANSWER - -endocrine gland
-two lobes
-midline
(anterior to the midbrain, pons, medulla)
(sphenoid sinus is anterior to the sella turcica)
Blood brain barrier - CORRECT ANSWER - protects the brain from toxic compounds;
allows only lipid soluble to pass through
Statistics of neuroblastoma: - CORRECT ANSWER - -3rd most common childhood
cancer
-most common extracranial solid malignancy of childhood
-most common malignancy in infants (1/2 cases)
-60% have already metastasized at presentation
Types of leukemia: - CORRECT ANSWER - ALL (acute lymphocytic leukemia)-74%;
usually in children
AML (acute myeloid leukemia)-32%; adults
, CML (chronic myeloid leukemia)- chronic, slow progression, few symptoms, *philedelphia
chromosome
CLL
Treatment for leukemia: - CORRECT ANSWER - -chemo
-bone marrow transplant-TBI (12Gy)
Where is the most common site of mets from HN cancer? - CORRECT ANSWER - to the
lung
Where is lip cancer usually at? - CORRECT ANSWER - mostly on the lower lip and
spread by direct invasion
-sunlight
Where is the most common location that squamous cell carcinoma of oral cavity cancer occurs
(excluding lip)? - CORRECT ANSWER - most common= tongue
second most common= floor of mouth
(both most likely to include lymphatic involvement)
Treatment for oral cavity and pharynx cancer? - CORRECT ANSWER - 1. surgery
2. radiation>>>laterals or IMRT; if nodes are involved then AP supraclav with larynx shield
3. HDR interstitial with Ir-192
Sinus location - CORRECT ANSWER - Sagittal view starting anterior: frontal, ethmoid,
sphenoid, maxillary sinus inf of ethmoid
Frontal view: frontal, ethmoid, maxillary sinus (can't see sphenoid on frontal because it is
posterior)
