Tumors Flashcards
Q. On CT for an adult ptn a spherical mass is found b/w gray and white matters. What type of cancer can cause it?
Metastatic cancer
A. What’s the picture on CT for Astrocytomas ?
Arise in white matter and has an irregular shape
A. Where does most adult tumors arise from? Under or above tentorium?
Adults 70% above / children 70% below
A. What type of brain tumor can cause butterfly lesion on CT?
Glioblastoma multiform ( aggressive form of astrocytoma )
A. A spherical mass located on the surface of the brain is found on CT. What type of tumor can be the cause?
Meningioma tumor
Q. Dizziness + ⬇️ corneal reflex & hearing. What’s the most likely diagnosis ?
Cerebellopontine angle tumor ( benign) of the 8th cranial nerve ( it arise from myelin forming Schawnn cells ( +/- vertigo & tennitus with the symptoms)
Q.teenage ptn present with headache and altered mental status. A tumor was found and frozen section shows bizarre pleomorphic cells with necrosis & hemorrhage. what type of cancer is it?
Glioblastoma multiform
Glioblastoma multiform preferred location in adult is …….. while in children is …….?
In adults is cerebral cortex. While in children is brain stem
What the tumor that expand in size but don’t invade ( benign) and it’s attached to the dura?
Meningioma ( most common benign neoplasm )
Q. A ptn after prolactinoma removal, becomes lethargic, confused the. Eventually comatose. The urin out put is >600ml/h. What’s your diagnosis?
The ptn developed Diabetes insipidus because of injury-shock to the pituitary glad while removing the adenoma. Also the ptn went into coma because of hypernatremia
A. Craniopharyngioma is a tumor that is common in children, it’s located in the suprasellar region nearby the pituitary,hypothalamus, optic chias, what are the S&S?
Diabetes insipid, visual deficit, hypopitutarisim
