Proximal and Lateral Chromonychia with Capillary Proliferation on the Distal Nail Matrix

Ann Dermatol. 2012 May;24(2):240-241.

Affiliations

¹Department of Dermatology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea. hjpark@catholic.ac.kr

No abstract available.

MeSH Terms

Fig. 1 (A) Greenish brown chromonychia was seen on the proximal and lateral nail plate on the right middle finger. (B) The nail plate was extracted and two 2 mm punch biopsies were performed on the proximal nail fold and distal nail matrix (arrow). (C) The extracted nail plate showed green to brown-colored pigmentation.
Fig. 2 (A) Histopathologic findings of the proximal nail fold revealed no significant inflammation suggesting paryonychia (Hematoxylin and eosin, ×40). (B) The biopsy specimen from the distal nail matrix showed dilated capillary proliferation in the papillary dermis (Hematoxylin and eosin, ×40). (C) The endothelial layer was positivity for CD34 (CD34, ×200). (D) Small granules were positive for Prussian blue stain (Prussian blue, ×200).

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