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Pseudoclubbing: is it different from clubbing?
Mittermayer B Santiago1, Isabella Lima, Alina Coutinho Rodrigues Feitosa
1Serviço de Reumatologia do Hospital Santa Izabel, Escola Bahiana de Medicina e Saúde Pública, Salvador, Bahia, Brazil. mitter@svn.com.br
Seminars in Arthritis and Rheumatism
|April 2, 2008
Summary
Pseudoclubbing (PC) lacks a clear definition, unlike digital clubbing. This review highlights PC
Area of Science:
- Medical Research
- Dermatology
- Rheumatology
Background:
- Pseudoclubbing (PC) is a poorly defined condition.
- Distinguishing PC from digital clubbing is challenging.
Observation:
- Literature review identified 19 cases of PC.
- Associated conditions include renal failure, hyperparathyroidism, subungual hemangioma, chromosomal deletion, sarcoidosis, scleroderma, and primary hyperparathyroidism.
- Asymmetric finger involvement and acro-osteolysis are noted features of PC.
Findings:
- No definitive etiopathogenic mechanism for PC has been established.
- While some features differentiate PC from clubbing, these are not always present.
- PC can present with acro-osteolysis, a feature also seen in true clubbing.
Implications:
- Further research is needed to establish a clear definition and understanding of PC.
- Improved diagnostic criteria may aid in differentiating PC from clubbing.
- Understanding associated conditions is crucial for patient management.
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