Document Detail

Dermoscopy of subungual haemorrhage: Its usefulness in the differential diagnosis from nail unit melanoma.
MedLine Citation:
PMID:  23302009     Owner:  NLM     Status:  Publisher    
BACKGROUND: Subungual haemorrhages are characterised by well-circumscribed dots or blotches with a red to red-black pigmentation, but some cases can be difficult to distinguish from subungual melanoma by the naked eye alone. Dermoscopy has proven to be a useful, noninvasive tool in the diagnosis of pigmented lesions in the nail; however, few dermoscopic studies for subungual haemorrhages have been reported. OBJECTIVE: The purpose of this study was to investigate characteristic dermoscopic patterns of subungual haemorrhage and to find distinctive features that can differentiate subungual haemorrhages from nail unit melanomas. METHODS: Patients with a confirmed diagnosis of either subungual haemorrhage or nail unit melanoma at a tertiary university hospital were included in the study. Clinical features and dermoscopic patterns were evaluated. RESULTS: Sixty-four patients with a total of 90 lesions of subungual haemorrhage were enrolled in the study. The majority of cases (84.4%) showed a combination of more than 1 colour, while 15.6% had only 1 colour. The most common colour of the subungual haemorrhages was purple-black in 36.7% cases. A homogenous pattern was observed in 92.2% cases, globular patterns in 42.2%, and streaks in 38.9%. Peripheral fading and periungual haemorrhages were found in 54.4% and 22.3%, respectively. Destruction or dystrophy of the nail plate was observed in 15.6% cases. In the 16 cases with nail unit melanomas, Hutchinson sign, longitudinal irregular bands or lines, triangular shape of bands, vascular pattern, and ulcerations were found in 100%, 81.25%, 25%, 6.25%, and 81.25% cases, respectively. In contrast, these features were not found in subungual haemorrhages. CONCLUSIONS: Dermoscopy provides valuable information for the diagnosis of subungual haemorrhage and aids in the differential diagnosis from nail unit melanoma.
J-H Mun; G-W Kim; S-W Jwa; M Song; H-S Kim; H-C Ko; B-S Kim; M-B Kim
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-10
Journal Detail:
Title:  The British journal of dermatology     Volume:  -     ISSN:  1365-2133     ISO Abbreviation:  Br. J. Dermatol.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0004041     Medline TA:  Br J Dermatol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
©The Authors BJD © 2013 British Association of Dermatologists.
Department of Dermatology, Pusan National University School of Medicine, Biomedical Research Institute, Pusan National University Hospital, Busan, Korea.
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