Dentosphere : World of Dentistry

# Enlarged, grayish yellow or orange tonsils are pathognomic of ? A. Waldenström’s macroglobulinemia B. Polycythemia vera C. Wolman disease D. Tangier disease The correct answer is D. Tangier Disease. Tangier disease is associated with cholesterol accumulation in reticuloendothelial system with hepatosplenomegaly & enlarged, grayish yellow or orange tonsils. Ref: Harrison’s 18th Ed. 3154

# Preauricular lymphadenopathy accompanies which of the following? A. Scalp infection B. Ear infection C. Conjunctival infections D. Tooth infection The correct answer is: C. Conjunctival infections. Preauricular adenopathy accompanies conjunctival infections and cat-scratch disease. Ref: Harrison’s 18th Ed. 466

# Occipital lymphadenopathy accompanies which of the following ? A. Scalp infection B. Ear infection C. Conjunctival infections D. Tooth infection The correct answer is : A. Scalp infection. Occipital adenopathy often reflects infection of the scalp. Ref: Harrison’s 18th Ed. 466

# During menstrual cycle, platelet count rise at what time ? A. Following ovulation B. At the onset of menses C. After completion of menstrual flow D. Before ovulation The correct answer is A. Following ovulation. Platelet count varies in menstrual cycle, rising following ovulation & falling at onset of menses. Ref: Harrison’s 16th Ed. 673

# The major risk factor for arterial thrombosis is ? A. Atherosclerosis B. Hyperhomocysteinemia C. Dysfibrinogenemia D. Hormonal therapy The correct answer is: A. Atherosclerosis.  The major risk factor for arterial thrombosis is atherosclerosis. Risk factors for venous thrombosis are immobility, surgery, underlying medical conditions, malignancy, hormonal therapy, obesity, and genetic predispositions.

# Epistaxis is the most common symptom in ? A. Hemophilia A B. Ehlers-Danlos syndrome C. Hereditary hemorrhagic telangiectasia D. Cushing’s syndrome The correct answer is C. Hereditary hemorrhagic telangiectasia Epistaxis is the most common symptom in hereditary hemorrhagic telangiectasia & in boys with Von Willebrand Disease. Ref: Harrison’s 18th Ed. 460

# Poikilocytosis is related to which feature of RBC ? A. Size B. Shape C. Number D. Colour The correct answer is: B. Shape. Variations in red cell shape is called poikilocytosis. Poikilocytosis suggests a defect in the maturation of red cell precursors in bone marrow or fragmentation of circulating red cells. Ref: Harrison’s 18th Ed. 450