dr_singh246
internal medicine pgy2
Topics: 235
Posts: 561
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1). Differentiation of a low grade astrocytoma from a glioblastoma multiforme is based on:
absence of necrosis in a glioblastoma multiforme
presence of necrosis in a glioblastoma multiforme
presence of necrosis in a well differentiated astrocytoma
presence of vascular proliferation in a well differentiated astrocytoma
absence of vascular proliferation in a glioblastoma multiforme
2). The most common brain tumor in adults is:
low grade astrocytoma
meningioma
metastatic carcinoma
glioblastoma multiforme
oligodendroglioma
3). The following tumor(s) retain cellular features of undifferentiated primitive neuroectodermal cells:
medulloblastoma
oligodendroglioma
ganglioneuroma
pilocytic astrocytoma
pleomorphic xanthoastrocytoma
4). The following tumors occur commonly in the ventricles and in the filum terminale of the spinal cord:
pilocytic astrocytoma
hemangioblastoma
oligodendroglioma
medulloblastoma
ependymoma
5). The following is the most common CNS neoplasm in immunocompromised patients:
Kaposi’s sarcoma
meningeal carcinomatosis
primary CNS lymphoma
medulloblastoma
pleomorphic xanthoastrocytoma
6). A brain tumor which sometimes contains psammoma bodies and progesterone receptors is:
hemangioblastoma
meningioma
germ cell tumor
primary brain lymphoma
pineoblastoma
7). The following CNS tumor is commonly cystic, histologically contains Rosenthal fibers and typically occurs in children and young adults:
hemangioblastoma
medulloblastoma
pleomorphic xanthoastrocytoma
pilocytic astrocytoma
germ cell tumor
8). The following list of primary malignancies accounts for the majority of metastatic brain tumors:
lung, breast, melanoma
testis, ovary, melanoma
lung, prostate, uterus
pancreas, melanoma, ovary
salivary gland, ovary, testis
9). CNS tumors which commonly present clinically with tinnitus and hearing loss include:
meningioma
metastatic carcinoma
ganglioneuroma
schwannoma
ependymoma
(10-13) Match the following neoplastic processes of the central and peripheral nervous system with the following neurocutaneous syndromes.
hemangioblastoma
pilocytic astrocytoma
meningioma
cortical hamartoma
plexiform neurofibromas
10). Neurofibromatosis, Type I ______
11). Neurofibromatosis, Type II ______
12). Tuberous sclerosis ______
13). von Hippel-Lindau disease ______
(14-19) Abnormalities of the following chromosomes are associated with these disease processes. Answers may be used more than once.
22
17
3
9
14). von Hippel-Lindau disease ______
15). Meningioma ______
16). Tuberous sclerosis ______
17). Neurofibromatosis, Type I ______
18). Neurofibromatosis, Type II ______
19). Medulloblastoma _____
The following is the most common primary intracranial tumor in adults:
meningioma
ependymoma
pineoblastoma
astrocytoma
glioblastoma multiforme
21). The following CNS tumor has a peak incidence in the first decade of life and is usually located in the cerebellum:
pineoblastoma
pleomorphic xanthoastrocytoma
medulloblastoma
gemistocytic astrocytoma
meningioma
22).The following tumor may cause seizures secondary to compression and tends to erode adjacent bone:
pilocytic astrocytoma
meningioma
ependymoma
medulloblastoma
oligodendroglioma
23).The following statement(s) is/are true regarding Schwannomas:
Usually are circumscribed.
Can arise from small and large nerves.
A component of neurofibromatosis, Type II.
May be multiple or single.
All of the above.
24). The following statement(s) is/are true regarding neurofibromas:
Are not well circumscribed and tend to merge with surrounding tissue.
Plexiforme type is a component of neurofibromatosis Type I.
May be multiple or single.
May undergo malignant degeneration in a patient with neurofibromatosis, Type I.
All of the above.
25). The following CNS tumors contains tumor cell rosettes as a typical histologic feature:
pilocytic astrocytoma
ependymoma
glioblastoma multiforme
meningioma
oligodendroglioma
26). The following statements is/are true regarding oligodendroglioma:
Account for less than 15% of gliomas.
Usually a slow growing tumor, clinically produces seizures, and has a better prognosis than astrocytomas.
May be circumscribed and usually contains calcifications.
Has a predilection for white matter and histologically tumor cells have a "fried-egg" appearance due to nuclei surrounded by a clear cytoplasmic halo.
All of the above.
27). The following tumor contains perivascular pseudorosettes:
ependymoma
oligodendroglioma
glioblastoma multiforme
meningioma
pilocytic astrocytoma
28). This lesion may produce positional headaches, and can cause non-communicating hydrocephalus secondary to obstruction of the foramina of Monro:
acoustic neuroma
pilocytic astrocytoma
colloid cyst
hamartoma of tuberous sclerosis
meningioma, papillary variant
(29-34) Match the following cells of origin with the list of tumors below:
neural crest
astrocytes
primitive undifferentiated neuroectodermal cells
unknown cell of origin
meningothelial cells
Rathke pouch remnants
29). Glioblastoma multiforme ______
30). Meningioma, secretory variant ______
31). Schwannoma ______
32). Craniopharyngioma ______
33). Hemangioblastoma ______
34). Medulloblastoma ______
___________________
to love when it can be lost, to go on when progress seem futile and to believe in every fiber of your body. to live , have hope and faith and to never give in.... dr_singh246@yahoo.com
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| mdwannabe
Forum Guru
Topics: 37
Posts: 1,133
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Dear Dr. Sigh... you have got to be kidding!
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"Life not lived for others, is not worth living" Uncle Einstein
"A life is not important, except in the impact it has on other lives" -Jackie Robinson
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| dr_singh246
internal medicine pgy2
Topics: 235
Posts: 561
|
why
___________________
to love when it can be lost, to go on when progress seem futile and to believe in every fiber of your body. to live , have hope and faith and to never give in.... dr_singh246@yahoo.com
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| mdwannabe
Forum Guru
Topics: 37
Posts: 1,133
|
35 questions in one post... that must be a record...
Good luck getting and answer!
___________________
"Life not lived for others, is not worth living" Uncle Einstein
"A life is not important, except in the impact it has on other lives" -Jackie Robinson
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| dr_singh246
internal medicine pgy2
Topics: 235
Posts: 561
|
___________________
to love when it can be lost, to go on when progress seem futile and to believe in every fiber of your body. to live , have hope and faith and to never give in.... dr_singh246@yahoo.com
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| mjl1717
Forum Hero
Topics: 957
Posts: 5,461
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Dr. Singh-You're a great guy, and we like ya--But you are going to minimize those qs with so many! No offense, take it from a veteran like Mdwannabe.{The main point is that is that we can discuss fewer qs with GREATER DEPTH say maybe 3 or 4 at most} also in this arena I later learned its better to know 1 thing EXTREMELY well, then to know tiny bits about a lot. Just my opinion. :shock:
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Smell the coffee! "Is That an Osler move??"
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| dr_singh246
internal medicine pgy2
Topics: 235
Posts: 561
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yes sure i got the point. i am new to forum. didnt knew about it. and i was in a bit hurry. anyways thanks for ur liking me.
___________________
to love when it can be lost, to go on when progress seem futile and to believe in every fiber of your body. to live , have hope and faith and to never give in.... dr_singh246@yahoo.com
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| adeelmd
Forum Elite
Topics: 40
Posts: 402
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i am giving my exam in 4 days.. and i loved the questions (they boosted my confidence... ) some of them actually looked doable.. (what is the ch # for tuberus and medulloblast?
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where i lay my head is home.
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| mjl1717
Forum Hero
Topics: 957
Posts: 5,461
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So Adeelmd my friend - So answer them and give "cuttting" or Hi Yield explanations for the distractors!
___________________
Smell the coffee! "Is That an Osler move??"
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| alrains
Forum Newbie
Topics: 0
Posts: 7
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1) b
2) a) low grade astrocytoma is the mc primary brain tumr in adults
3) a) medulloblatoma - MC primitve neuroendocrine tmr
4) e) ependymoma - MC site is ventricle & filum terminale of SC
5) c) primary CNS lymphoma - MC CNS neoplasm in immunocompromised
6) b) meningioma - contains progesetrone R & psammoma bodies
7) d) pilocytic astrocytoma - cystic,spindle shaped cells + , rosenthal fibres + ,GFAP +ve,
8) a) lung,breast & melnoma
9) d) shwannoma
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| alrains
Forum Newbie
Topics: 0
Posts: 7
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10). Neurofibromatosis, Type I - plexiform neurofibromas
11). Neurofibromatosis, Type II - meningioma
12). Tuberous sclerosis - cortical hamartoma
13). von Hippel-Lindau disease - capillary hemangioblastoma
14). von Hippel-Lindau disease - chromosome 3p
15). Meningioma - chromosome 22
16). Tuberous sclerosis - chromosome 9 (TSC1)
17). Neurofibromatosis, Type I - chromosome 17q (neurofibromin gene - NF1)
18). Neurofibromatosis, Type II - chromsome 22q (merlin gene - NF2)
19). Medulloblastoma - chromosome 17
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| alrains
Forum Newbie
Topics: 0
Posts: 7
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20) d] astrocytoma
21) c] medulloblastoma
22) e] oligodendroglioma
Seizures are the MC presentation
a/w calcification (highest frequency amg bone tumrs)
Erosion of skull +
** meningiomas are also a/w erosion of the bone 
24) e] all the above
27) a] ependymoma
28) c] colloid cyst
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