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Journal of the American Academy of Dermatology
Volume 42, n° 5P1
pages 787-790 (mai 2000)
Doi : 10.1067/mjd.2000.103046
accepted : 16 September 1999
Quantitative nailfold capillary microscopy findings in patients with acrocyanosis compared with patients having systemic sclerosis and control subjects

Giovanna Monticone, MD, Laura Colonna, MD, Giuliana Palermi, MD, Riccardo Bono, MD, Pietro Puddu, MD
Dipartimento di Immunodermatologia, Istituto Dermopatico dell’Immacolata I.D.I., IRCCS. Rome, Italy 


Background: The morphologic capillary microscopy (capillaroscopy) pattern of acrocyanosis is characterized by hemorrhages, pericapillary edema, and widened capillaries. These findings can result in a difficult differential diagnosis with systemic sclerosis (SSc). Objective: We sought to quantify the characteristics of the capillaroscopy pattern that distinguishes patients with acrocyanosis from patients with SSc and control subjects. Methods: A videomicroscope with fiberoptic illumination and personal computer–based image processing was used to measure capillary density, giant capillaries, loop width, and arterial and venous limbs in 10 patients with acrocyanosis, 10 patients with SSc, and 10 healthy control subjects. Results: Acrocyanotic patients differed in every quantitative parameter both from control subjects and patients with SSc. In particular, capillary density, which was reduced compared with that of control subjects, was much higher than that of patients with SSc: one giant capillary per finger was observed in 2 patients with acrocyanosis, whereas more than 2 giant capillaries per finger were observed in each patient with SSc. Conclusion: These differences may aid in making the distinction between the capillaroscopy patterns in acrocyanosis and SSc. (J Am Acad Dermatol 2000;42:787-90.)

The full text of this article is available in PDF format.

 Reprint requests: Giovanna Monticone, MD, Dipartimento di Immunodermatologia, Istituto Dermopatico dell’Immacolata, IRCCS, via Monti di Creta, 104, 00167 Rome, Italy.

© 2000  American Academy of Dermatology, Inc. Published by Elsevier Masson SAS@@#104157@@
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