A patient has increased number of columnar cells in lower esophagus. He has which of the following change_______________?

Related Mcqs:

1. A patient who has had a recent amalgam filling in the upper teeth has a gold filling in the lower teeth, the patient complains of pain. The reason for this can be mainly_____________?

   A. Improper amalgam filling
   B. Pulp exposure
   C. Galvanism
   D. None of the above

2. The esophagus commences at the following level________________?

   A. Lower end of cricoid
   B. C5 vertebra
   C. 10 cm from incisor teeth
   D. C7

3. A 15 years old boy reports with a rapidly growing swelling of the mandible with intermittent pain patient history is that the swelling occurred after an episode of trauma Radiographs reveal formation of new subperiosteal bone producing Onion skin appearance The patient also has lip paresthesia elevated white blood cell count Based on the clinical and radiographic picture, one of the following condition could be considered in the provisional diagnosis_________________?

   A. Fracture of the jaw with cancellous bone formation
   B. Chronic suppurative osteomyelitis
   C. Burkitt’s Lymphoma
   D. Ewing’s sarcoma

4. White patch is seen on the buccal mucosa consisting of pseudomycelium and chalmydospores with desquamated epithelium adjacent to it, the patient is suffering from epithelium adjacent to it, the patient is suffering from_____________?

   A. histoplasmosis
   B. cryptococcosis
   C. candidiasis
   D. coccidiomycosis

5. A patient with a bleeding disorder with increased bleeding time and normal clotting time is suffering from________________?

   A. Classic hemophilia
   B. Christmas disease
   C. Vitamin K deficiency
   D. Idiopathic thrombocytopenic purpura

6. A patient complains of numbness of lower lip. There is no history of tooth extraction. It could be______________?

   A. Infection
   B. Metastatic neoplasia
   C. Dental Manipulation
   D. CNS disease

7. A patient with carinoma cheek has tumor of 2.5 cms located close to and involving the lower alveolus. A single mobile homolateral node measuring node measuring 6 cm is palpable. Based on these clinical findings TNM stage of the tumor is______________?

   A. T1 N1 Mo
   B. T2 N2 Mo
   C. T3 N1 Mo
   D. T4 N2 Mo

8. Why fetal cells continue to divide but terminally differentiated adult cells do not divide ?

   A. There are many cyclin inhibitors which prevent cell to enter into S phase in adult
   B. Phosphatase absent in fetal cells
   C. Proteinase is absent in fetus
   D. Absence of CD kinase

9. Bone marrow stem cells differ from differ from differentiated progenitor stem cells in what respect ?

   A. Provide differentiated terminal cells
   B. Reconstitution of Bone marrow
   C. Formation of the ovum
   D. Act as a repair system for the body

10. NK cells are effective against viral infected cells only if the cell with infection___________?

    A. Exprss MHC class I proteins
    B. Unable to express MHC class I proteins
    C. Express MHC class II proteins
    D. Unable to express MHC class II proteins