Journal List > J Korean Soc Surg Hand > v.19(4) > 1106473

J Korean Soc Surg Hand. 2014 Dec;19(4):205-208. Korean.
Published online December 31, 2014.
Copyright © 2014. The Korean Society for Surgery of the Hand
A Case of Pachydermodactyly
Chae Chil Lee,1 Seung Won Choi,2 Se Jin Jung,3 Young Min Kim,3 and Il Yeong Hwang1
1Department of Orthopedic Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
2Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
3Department of Pathology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.

Correspondence to: Seung Won Choi. Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, 877 Bangeojinsunhwan-doro Dong-gu, Ulsan 682-714, Korea. TEL: +82-52-250-7029, FAX: +82-52-250-7048, Email:
Received September 29, 2014; Revised December 02, 2014; Accepted December 02, 2014.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.


Pachydermodactyly is a form of digital dermal fibromatosis of unknown etiology, characterized by asymptomatic soft tissue swelling on the lateral aspects of the proximal interphalangeal joints of the hands. It usually affects young men and often associated with repetitive mechanical trauma. As a rule, it is a benign condition and a specific therapy or extensive investigation is not necessary in most cases. However, pachydermodactyly is not well recognized by physician. So it can be confused with other rheumatic conditions, such as rheumatoid arthritis or juvenile idiopathic arthritis. A prompt diagnosis is crucial for preventing inappropriate or possible toxic treatment. We describe a case of pachydermodactyly in a 20-year-old military man, who had painless swellings of the hand joints.

Keywords: Pachydermodactyly; Hand joints


Fig. 1
Photograph of hands shows bilateral soft tissue swellings of the proximal interphalangeal joints.
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Fig. 2
Hand radiograph showings soft tissue swelling around the proximal interphalangeal joints without joint narrowing or bony erosions.
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Fig. 3
Magnetic resonance imaging reveals soft tissue swelling of the second to fourth proximal interphalangeal joints of the hand without articular or bony abnormality.
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Fig. 4
Skin biopsy specimen exhibits marked hyperkeratosis, acanthosis and thickened dermis with collagen deposition (H&E, ×100).
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