282+ quick-fire dental facts • tap a card to flip
EBV tumor list: Burkitt lymphoma, B-cell lymphomas in immunodeficient (HIV, post-transplant), subset of Hodgkin lymphoma (mixed cellularity), nasopharyngeal carcinoma (100% non-keratinizing), subset of T-cell lymphomas, NK cell lymphomas, gastric carcinomas (?10%), and rarely sarcomas in immunosuppressed. Hepatocellular carcinoma associated with HBV, HCV, not EBV.
EBV is associated with all EXCEPT:
1) Nasopharyngeal carcinoma
2) Subset of Hodgkin lymphoma
3) Gastric carcinoma subset
4) Hepatocellular carcinoma
Correct answer: B) Langhans' giant cells, seen in tuberculosis and sarcoidosis, have nuclei arranged peripherally in a horseshoe or ring pattern (or clustered at the poles). Foreign body giant cells have randomly scattered nuclei; Touton giant cells have a vacuolated lipid-laden rim (as in xanthoma); Aschoff giant cells derive from cardiac histiocytes in rheumatic nodules.
Giant cells with nuclei arranged in a horseshoe or peripheral ring pattern, classically seen in tuberculosis, are called:
1) Foreign body giant cells
2) Langhans' giant cells
3) Touton giant cells
4) Aschoff giant cells
Correct answer: C) FFP is used for coagulation factor deficiencies when specific factor concentrates are unavailable or inappropriate — such as warfarin reversal, vitamin K deficiency, antithrombin III deficiency, or after massive transfusion. When a specific concentrate is available (as for isolated factor VIII deficiency), FFP is not the preferred choice.
Fresh frozen plasma (FFP) is indicated in all of the following EXCEPT:
1) Emergency reversal of warfarin effect
2) Vitamin K deficiency with deficient factors II, VII, IX, X
3) Isolated factor VIII deficiency when specific concentrate is available
4) Antithrombin III deficiency
Which of the following statements about Addison's disease is correct?
1) Addison's disease is caused by excessive secretion of cortisol from the adrenal cortex.
2) Hyperpigmentation is not a classic physical finding in Addison's disease.
3) The mosaic pattern of bone is a characteristic of Addison's disease.
4) Increased incidence of astrocytomas is associated with Addison's disease.
Which of the following is the most common cause of hypothyroidism in adults leading to myxedema?
1) Cretinism
2) Grave's disease
3) Hyperthyroidism
4) Hashimoto's thyroiditis
Correct answer: B) These opaque, white, fibrous pericardial plaques, believed to result from healing of prior pericarditis, are seen most often on the anterior right ventricular surface — historically noted in WWI soldiers whose shoulder-bag straps caused chronic pericardial irritation.
Pericardial "milk spots" or "soldiers' spots" are most frequently found on which surface?
1) Posterior surface of left atrium
2) Anterior surface of right ventricle
3) Diaphragmatic surface of left ventricle
4) Visceral pericardium over the aorta
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