1st Sem Finals Flashcards
Tumor suppressor gene altered in the majority of cancers.
a. PTEN
b. RB
c. P53
d. APC
c. P53
Laboratory studies of a surgical specimen obtained from a patient with colon cancer demonstrate hypermethylation of the p53 gene. Which of the following best characterizes this biochemical change in the neoplastic cells?
a. Gene amplification
b. Proto Oncogene mutation
c. Epigenetic modification
d. Driver mutation
c. Epigenetic modification
Most common cancers are effects of ionizing radiation.
a. Myeloid leukemias
b. Thyroid cancer
c. Breast cancers
d. Lung cancers
e. Skin cancers (i.e. melanoma)
a. Myeloid leukemias
Ms. Iwa Motors, a 75-year old female, a previously heavy smoker, was diagnosed with lung adenocarcinoma. As her physician, you explain that a possible mutation involving the signal transducing protein that caused her cancer is?
a. KRAS
b. LOVE
c. JAK2
d. MHAL
e. FRND/ZNE
a. KRAS
A critical virulence factor of H. pylori for the development of gastric cancer
a. vacB
b. cagA
c. dupA
d. tupA
e. dobB
b. cagA
The nomenclature of benign vs malignant neoplasms was explained in the lectures. Which of the following is NOT benign?
a. Fibroma
b. Lymphoma
c. Papilloma
d. Cystadenoma
e. None of the choices
b. Lymphoma
Environmental carcinogen associated with Hepatic angiosarcoma
a. Asbestos
b. Vinyl chloride
c. Cadmium
d. Benzene
b. Vinyl chloride
Jovit Sucaldito, a 68 year-old male, was diagnosed with colorectal carcinoma. He came to you asking if cucumbers can help but you explained that there is a bigger picture involved that where cucumbers are insufficient. You explained to him that his cancer maybe due to a defect in the “gatekeeper of colonic neoplasia”, which is..?
a. p53
b. APC
c. p16
d. RB
e. EGFR
b. APC
HPV Viral oncoprotein that neutralizes growth inhibitory activities of RB and/or p53 gene.
a. E5,E6
b. E6,E7
c. E7,E8
d. E8,E9
b. E6,E7
Refers to the extent to which neoplastic parenchymal cells resemble the corresponding normal parenchymal cells both morphologically and functionally
a. Metaplasia
b. Differentiation
c. Pleomorphism
d. Anaplasia
b. Differentiation
Faramir, a 67 year-old male, came for consult to the ER due to chronic abdominal pain. He appears jaundiced with a very protuberant abdomen. On history he admits to having frequent heavy bouts of binge alcohol drinking. He also has a history of cancer in both his mother and father’s side. You requested for some laboratories because you suspect he might have cancer. If he has very elevated CA19-9 and normal level of CEA and AFP, you would suspect him to have?
a. Liver cancer
b. Colon cancer
c. Pancreatic cancer
d. Prostate cancer
e. stomach cancer
c. Pancreatic cancer
Mutated genes that cause excessive cell growth even in the absence of growth factor and other growth promoting
a. Oncogenes
b. Tumor suppressor genes
c. Oncoprotein
a. Oncogenes
Mutations of these cause a “loss-of-function”, and behave in a recessive fashion.
a. Oncogenes
b. Oncoproteins
c. Tumor suppressor genes
d. Driver mutation
e. Passenger mutation
c. Tumor suppressor genes
It is the most reliable feature that differentiates most malignant from benign tumors
a. Metaplasia
b. Dysplasia
c. Invasiveness
d. Increase in mitotic Figures
e. Tumor size
c. Invasiveness
Eowyn, a G0P0 68-year old woman, came for consultation due to prolonged pelvic pain and a bloated feeling. She previously sought consultation with another physician but was lost to follow-up due to prolonged mourning of her brother, Eomer. You looked at the labs requested and noticed that CA125 was requested. You would remember well from your pathology discussions that this is a marker for..?
a. Colon cancer
b. Endometrial cancer
c. Breast cancer
d. Ovarian cancer
e. Trophoblastic tumors
d. Ovarian cancer
Which of the following do not belong to the group? a. Xeroderma pigmentosum
b. Fanconi syndrome
c. Bloom syndrome
d. Ataxia telangectasia
e. None of the choices
a. Xeroderma pigmentosum
Which of the following viruses is NOT associated with carcinogenesis?
a. HSV1
b. HPV
c. HBV
d. HSV2
e. All of the choices are associated with cancer.
a. HSV1
Mutated BRCA1 and BRCA 2 genes are implicated in which hereditary tumors:
a. Breast carcinoma
b. Bladder carcinoma
c. Prostate carcinoma
d. Ovarian carcinoma
a. Breast carcinoma
Most common pathway for the initial dissemination of cancers.
a. Lymphatic spread
b. Seeding of body cavities
c. Hematogenous spread
d. None
a. Lymphatic spread
A 3-year-old boy presents with intermittent hematuria for 1 week. On examination he appears well developed and well nourished, except a right flank mass is palpable. A biopsy of the mass is performed, which reveals primitive looking small blue cells with glomeruloid and tubuloid structures. What is the diagnosis?
a. Medulloblastoma
b. Wilms tumor
c. Clear cell sarcoma
d. Polycystic kidney disease
b. Wilms tumor
The hallmark of malignancy:
a. Anaplasia
b. Metaplasia
c. Metastasis
d. Mitosis
a. Anaplasia
The following are fundamental changes in cell physiology which are considered as hallmarks of cancer except
a. Tumors may not respond to molecules that inhibit the proliferation of normal cells
b. Tumors are resistant to programmed cell death
c. Tumors have unrestricted proliferative capacity
d. Tumor cells undergo a metabolic switch to
anaerobic glycolysis
d. Tumor cells undergo a metabolic switch to
anaerobic glycolysis
Mr. Robot Jaworski has a 1 year-old child recently diagnosed with retinoblastoma. As the physician on duty upon check-up, you would explain that retinoblastoma is an abnormality in what GENE?
a. Merlin
b. Ankyrin
c. RB
d. PTCH
e. PTEN
c. RB
A 45-year-old female undergoes a colectomy. The pathologist identifies more than 100 polyps in the resected specimen as well as a focus of invasive adenocarcinoma. What is the functional mechanism for the gene mutation causing this disease process?
a. Increased breakdown of β-catenin
b. Decreased breakdown of β-catenin
c. Decreased activity of β-catenin
d. Lack of production of β-catenin
b. Decreased breakdown of β-catenin - answer key ni Doc
Cascade of anomalies triggered by one initiating aberration?
a. Sequence
b. Deformations
c. Malformations
d. Disruptions
a. Sequence
Which of the following increases the risk of Wilms Tumor?
a. Turner Syndrome
b. Edward Syndrome
c. Klinefelter Syndrome
d. Beckwith-Wiedemann syndrome
e. Alport syndrome
d. Beckwith-Wiedemann syndrome
Which of the following is a common malignant neoplasm in 5-9 years
a. Hepatocellular carcinoma
b. Ewing Sarcoma
c. Lymphoma
d. Thyroid carcinoma
a. Hepatocellular carcinoma
What is the most common pathogen that colonizes the lower respiratory tract of patients with cystic fibrosis?
a. Staphylococcus aureus
b. Pseudomonas aeruginosa
c. Klebsiella pneumoniae
d. Chlamydophila psittaci
b. Pseudomonas aeruginosa
The gold standard for the diagnosis of Cystic Fibrosis. a. trypsinogen
b. sweat chloride test
c. CFTR gene sequencing
d. none of the above
c. CFTR gene sequencing
Most common extracranial solid tumor of childhood.
a. Leukemia
b. Retinoblastoma
c. Neuroblastoma
d. Wilm’s tumor
c. Neuroblastoma
The most common cause of early onset sepsis and early-onset bacterial meningitis.
a. Streptococcus agalactiae
b. Candida albicans
c. Staphylococcus aureus
d. Listeria
a. Streptococcus agalactiae
Refers to microscopically normal cells or tissues that are present in abnormal locations.
a. Hamartoma
b. Metastasis
c. Choristoma
d. Teratoma
c. Choristoma
A deficiency in this enzyme is the major cause of hyperphenylalaninemia which impairs brain development.
a. Tetrahydrobiopterin reductase
b. Dihydropteridine reductase
c. Phenylalanine hydroxylase
d. Tetrahydrobiopterin oxidase
c. Phenylalanine hydroxylase
A 2-week-old infant is evaluated in the emergency room for failure to thrive. The patient has persistent diarrhea, which started at 3 days old. The child’s temperature is 39.5 C, pulse is 145/min, and blood pressure is 66/44. On examination, bilateral corneal opacities are noted. There is mild hepatomegaly. The heart and lungs are clear. Moderate jaundice is observed. The child’s blood glucose is 125 mg/dL, and the urine is positive for reducing substance. What is the most likely underlying condition?
A. Phenylketonuria
B. Galactosemia
C. Homocystinuria
D. Congenital type 1 diabetes
B. Galactosemia
An infant born at 39 weeks gestation age via uncomplicated vaginal delivery is noted to have a ring-like constriction of the 3rd digit of the right hand and distal amputation of the 4th digit of the right hand at birth. The child is otherwise normal. What type of morphologic anomaly are these findings an example of?
A. Malformation
B. Sequence
C. Disruption
D. Deformation
C. Disruption
Mental retardation in babies born to mothers with PKU is most likely caused by?
A. An enzyme deficiency in the baby
B. PKU in the baby
C. High blood phenylalanine in the mother during pregnancy
D. The father carrying the gene for PKU
E. Too little protein in the mother’s diet during
pregnancy
C. High blood phenylalanine in the mother during pregnancy
All of the following statements about arterial calcification in the elderly are true EXCEPT:
a. It involves small- and medium-sized vessels.
b. It can result in ischemic gangrene
c. It is a complication of diabetes
d. It is associated with varicose veins.
d. It is associated with varicose veins
These vessels are the principal points of physiologic resistance to blood flow.
a. Arteries
b. Arterioles
c. Veins
d. Capillaries
b. Arterioles
A 70-year-old, previously healthy man presents with right upper quadrant pain. Physical examination demonstrates hepatomegaly. A liver biopsy reveals a vascular lesion composed of pleomorphic endothelial cells with hyperchromatic nuclei and numerous mitoses. Laboratory tests for HIV infection are negative. Which of the following is the most likely diagnosis?
a. Angiosarcoma
b. Dermatofibroma
c. Glomus tumor
d. Hemangioma
e. Kaposi sarcoma
a. Angiosarcoma