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[Complications of pseudoainhum]
G Stinco1, E Quinkenstein, V De Francesco
1Dipartimento di Patologia e Medicina Sperimentale e Clinica, Clinica Dermatologica-Università degli Studi di Udine, Italy. dermatologia-univ-ud@libero.it
Summary
This case highlights a rare instance of pseudoainhum (a congenital condition) associated with amniotic band syndrome, leading to leukocytoclastic vasculitis and leg ulcer complications. Amputation resolved the vasculitis, suggesting a link between the congenital anomaly and the inflammatory condition.
Area of Science:
- Vascular Medicine
- Genetics
- Dermatology
Background:
- Pseudoainhum, a rare congenital disorder characterized by constrictions of digits, is often associated with amniotic band syndrome (Simonart syndrome).
- Leukocytoclastic vasculitis is an inflammatory condition affecting small blood vessels.
Observation:
- A 39-year-old male with a history of pseudoainhum and amniotic band syndrome presented with recurrent leukocytoclastic vasculitis and a severe ulcer on his right leg stump.
- Radiological examination revealed hypoplastic foot bones (talus and calcaneus) and upper limb abnormalities including syndactyly and fibrotic bands.
- The leg ulcer failed to improve with conservative therapy, necessitating below-knee amputation.
Findings:
- Following amputation, the patient experienced complete resolution of leukocytoclastic vasculitis episodes.
- This suggests a potential link between the congenital malformations and the development of vasculitis.
Implications:
- This case underscores the rare but significant association between amniotic band syndrome, pseudoainhum, and subsequent inflammatory complications like vasculitis.
- It highlights the importance of considering congenital anomalies in the differential diagnosis of unusual inflammatory conditions.
- Surgical intervention, such as amputation, may resolve associated systemic complications in select cases.