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A 44 yr-old female with severe pulmonary emphysema and reduced alpha-1-protease inhibitor (alpha1-PI) serum levels developed an acute anaphylactic reaction following the third intravenous infusion of human alpha1-PI which was administered to prevent the progression of pulmonary emphysema. Specific immunoglobulin E-antibodies against human alpha1-PI could be demonstrated in the patient's serum using an enzyme allergosorbent test. Because of the risk of further severe anaphylactic reaction, the replacement therapy with alpha1-PI was discontinued. Physicians should be aware of this rare complication.

In summary, DVT is an advantageous and practical imaging technique that can be used for to extend the diagnosis in surgery on third molars.