eMedicine Specialties > Dermatology > Allergy & Immunology
Angioedema, Acquired: Differential Diagnoses & Workup
Updated: Aug 18, 2009
- Overview
- Differential Diagnoses & Workup
- Treatment & Medication
- Follow-up
Differential Diagnoses
| Angioedema, Hereditary | Urticaria, Contact Syndrome |
| Drug Eruptions | Urticaria, Dermographism |
| Urticaria, Acute | Urticaria, Solar |
| Urticaria, Cholinergic | Urticarial Vasculitis |
| Urticaria, Chronic |
Other Problems to Be Considered
ACE inhibitor–induced angioedema
Episodic angioedema with angioedema
Leukocytoclastic vasculitis
Urticaria, cold
Workup
Laboratory Studies
- Acquired angioedema type I (AAE-I) and Acquired angioedema type II (AAE-II)
- Low C1-INH levels
- Low C1q levels (except 1 reported case)
- Low C4 levels
- Low C2 levels
- Acquired angioedema type II - Positive immunoblot assay findings for 95-kd C1-INH cleavage product
Imaging Studies
- Abdominal radiographs may demonstrate features of ileus. Other findings may be referable to an associated illness.
Other Tests
- Other laboratory findings are related to associated illnesses.
Histologic Findings
Histologic features include reticular dermal, subcutaneous, or submucosal edema without infiltrating inflammatory cells. Vasodilation may be seen.
More on Angioedema, Acquired |
| Overview: Angioedema, Acquired |
Differential Diagnoses & Workup: Angioedema, Acquired |
| Treatment & Medication: Angioedema, Acquired |
| Follow-up: Angioedema, Acquired |
| References |
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References
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Leiden, The Netherlands. Biotech company Pharming Group NV ("Pharming" or "the Company") (NYSE Euronext: PHARM) today announces that, in agreement with the European Medicines Agency (EMEA), the dossier for the European Marketing Authorisation Application (MAA) of Rhucin(R) will be submitted in September 2009. CheckOrphan. Available at http://www.checkorphan.org/news/pharming_confirms_rhucin_european_maa_filing_timeline. Accessed 8/5/2009.
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Further Reading
Keywords
angioedema, acquired angioedema, AAE, Caldwell syndrome, acquired angioedema
Differential Diagnoses & Workup: Angioedema, Acquired