7-1

Question 1

one observes interstitial dermal edema, dilated venules with endothelial swelling, and a paucity of inflammatory cells.

Answer 1

acute urticaria

Question 2

interstitial dermal edema and a perivascular and interstitial mixed-cell infiltrate with variable numbers of lymphocytes, and a mixture of eosinophils and neutrophils are present

Answer 2

In chronic urticaria,

Question 3

In___, the edema and infiltrate extend into the subcutaneous tissue.___, there is subcutaneous and submucosal edema without infiltrating inflammatory cells

Answer 3

angioedema; In hereditary angioedema

Question 4

In ___, the dermis shows an early leukocytoclastic vasculitis characterized by (a) an infiltrate predominantly within and around the walls of small blood vessels composed largely of neutrophils, some of which show fragmentation of their nuclei (leukocytoclasis); (b) minimal fibrin deposits in the vessel walls; and (c) slight-to-moderate extravasation of erythrocytes

Answer 4

urticarial vasculitis

Question 5

Electron microscopic examination reveals __ and __degranulation in common urticaria.

Answer 5

mast cell and eosinophil