md90
04-07-2006, 03:18 PM
http://www-medlib.med.utah.edu/WebPath/jpegvh/VHM1114R.jpg
Which of the following inflammatory processes is most likely to involve the region identified here (top middle area) in a 21 year old male who has atopy with worsening symptoms each Spring:
1. neutrophilic exudation
2. granuloma formation
3. collagen deposition
4. mast cell degranulation
5. immune complex deposition
Answer #4: mast cell degranulation, why? In the nose, the mast cells in submucosal tissues are coated with IgE that results in degranulation when antigens, such as plant pollens, are encountered. This is a form of type I hypersensitivity. The granules contain mediators such as histamine that lead to swelling.
Which of the following inflammatory processes is most likely to involve the region identified here (top middle area) in a 21 year old male who has atopy with worsening symptoms each Spring:
1. neutrophilic exudation
2. granuloma formation
3. collagen deposition
4. mast cell degranulation
5. immune complex deposition
Answer #4: mast cell degranulation, why? In the nose, the mast cells in submucosal tissues are coated with IgE that results in degranulation when antigens, such as plant pollens, are encountered. This is a form of type I hypersensitivity. The granules contain mediators such as histamine that lead to swelling.