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. 2018 Nov;5(1):60-63.
doi: 10.1159/000489577. Epub 2018 Jun 14.

Painful Pseudoclubbing of a Single Nail Unit

Michelle Gatica-Torres  1 , Katherine T Steele  2 , Benjamin Chang  3 , Paul J Zhang  4 , Adam I Rubin  2
Affiliations

Painful Pseudoclubbing of a Single Nail Unit

Michelle Gatica-Torres et al. Skin Appendage Disord. 2018 Nov.
No abstract available

Keywords: Enchondroma; Nail tumors; Pseudoclubbing.

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Figures

Fig. 1
Fig. 1
Clinical presentation. a The distal portion of the left second finger is enlarged when compared to the rest of the digits. b Lateral view of the index finger. There is pronounced longitudinal and transverse overcurvature, and Lovibond's angle is > 180°.
Fig. 2
Fig. 2
X-rays. a Posteroanterior view of left hand. A markedly expansile, largely lytic, osseous lesion in the distal phalanx of the second finger is seen. b Oblique view. There is chondroid matrix throughout the lesion measuring up to 1.6 × 1.4 × 1.2 cm and extending to the articular surface without disrupting its surface. No involvement of the interphalangeal joint is detected. c Magnified posteroanterior view. The appearance of the lesion is typical of an enchondroma.
Fig. 3
Fig. 3
Histopathologic findings. a Fragments obtained from surgical curettage showing a chondroid neoplasm. H&E. ×5. b The neoplasm is composed of regular lobules of cartilage separated by fibrous tissue. H&E. ×20. c The lobules are formed by hyaline cartilage with small single-nucleated chondrocytes. No mitoses are identified. H&E. ×50. d Minimal ossification is present with focal increased cellularity, but no permeation of the normal bone trabeculae is seen. H&E. ×100.
See this image and copyright information in PMC

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