Patterns of nail matrix and bed of longitudinal melanonychia by intraoperative dermatoscopy

Hirata, Sérgio Henrique; Yamada, Sérgio; Enokihara, Mauro Yoshiaki; Chiacchio, Nilton Di; Almeida, Fernando Augusto de; Enokihara, Milvia M.S.S; Michalany, Nílceo Schwery; Zaiac, Martin; Tosti, Antonella

doi:10.1016/j.jaad.2010.06.009

Cited by 81 publications

(70 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…According to a consensus on melanonychia nail plate dermatoscopy, it is always necessary to rely on clinical suspicion (history and physical examination) when deciding to perform a nail biopsy rather than dermoscopic pattern alone (Di Chiacchio et al, 2013a, Di Chiacchio et al, 2013b). On the other hand, intraoperative dermatoscopy had a higher sensitivity and specificity (Di Chiacchio et al, 2010, Göktay et al, 2015, Hirata et al, 2011). …”

Section: Discussionmentioning

confidence: 96%

Longitudinal melanonychia in an Iranian population: a study of 96 patients

Kamyab

Abdollahi

Nezam-Eslami

et al. 2016

International Journal of Women's Dermatology

View full text Add to dashboard Cite

BackgroundLongitudinal melanonychia (LM) can be a challenging sign since it may be caused by a wide variety of benign and malignant conditions. Cutaneous melanoma is the most important cause of LM. Objective: We performed this study to examine different aspects of LM in Iran, where cutaneous melanoma is rare.MethodsIn this cross-sectional study, we reviewed medical records and pathology reports of a total of 96 patients presenting with LM. These patients had been visited and undergone nail biopsy in Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran. Demographic, clinical, and pathological data were recorded.ResultsThe most common diagnosis was junctional nevi in 28 patients (29.2%) followed by melanoma in 19 patients (19.8%). Patients had a mean age of 42.4 years (± 19.4). The mean ages in the groups with junctional nevi and melanoma were 33.3 (± 19.5) and 51.9 (± 17.8), respectively; their difference was statistically significant (P value = 0.001). Hutchinson’s sign was present in 10 patients, 9 of which had melanoma. Also, melanoma was only observed in patients presenting with a solitary nail lesion. Nails mostly affected by melanoma were middle fingers of the hands (7 patients) and thumbs (6 patients). Out of 18 patients with nail dystrophy, 13 (72.2%) were diagnosed with melanoma.LimitationsOnly patients who have undergone biopsy were studied.ConclusionMelanoma is an important cause of LM in Iranian patients and should especially be suspected in older patients who present with a solitary nail lesion on their middle finger or thumb. Other findings that direct us toward melanoma are presence of Hutchinson’s sign and nail dystrophy.

show abstract

Section: Discussionmentioning

confidence: 96%

Longitudinal melanonychia in an Iranian population: a study of 96 patients

Kamyab

Abdollahi

Nezam-Eslami

et al. 2016

International Journal of Women's Dermatology

View full text Add to dashboard Cite

show abstract

“…The entire lesion, when possible, or the most irregular pattern area in the nail matrix seen by polarized light dermatoscope (Dermlite; 3Gen Inc, San Juan Capistrano, CA), was chosen for biopsy. [16][17][18] Surgical Technique…”

Section: Methodsmentioning

confidence: 99%

“…The other 125 refused to undergo an invasive procedure.The average age among the biopsied patients was 45.5 years (19-74 years), and 45 were women (77.6%). Most of the analyzed patients were classified as skin Type V (29, 50%), followed by skin Types VI(16, 27.5%), and IV(13,22.4%) patients.Melanonychia with brown coloration of the background was predominant among the biopsied patients (41, 70.7%). A black background was observed in 17 (29.3%) patients.…”

mentioning

confidence: 99%

Reassessing Melanonychia Striata in Phototypes IV, V, and VI Patients

Astur

Farkas²,

Junqueira³

et al. 2016

Dermatologic Surgery

Self Cite

View full text Add to dashboard Cite

show abstract

“…The reliability of dermoscopy in the diagnosis of melanoma is particularly high in the presence of the micro-Hutchinson sign. Dermoscopy may be used to look at the pattern of pigmentation of the nail matrix [36], for which it has a high sensitivity and specificity. With an intraoperative method, a Brazilian group identified 4 dermoscopic patterns: (1) a regular gray pattern, typical of hypermelanosis; (2) a regular brown pattern, typical of benign melanocytic hyperplasia; (3) a regular brown pattern with globules or blotches, typical of melanocytic nevi; and (4) an irregular pattern, typical of melanoma.…”

Section: Alterations Of the Nail Platementioning

confidence: 99%

Dermoscopy in the Evaluation of Nail Disorders

Alessandrini

Starace

Piraccini³

2017

Skin Appendage Disord

View full text Add to dashboard Cite

Nail dermoscopy was initially used only in the assessment of nail pigmentation, but now it is widely utilized for the evaluation of many nail disorders. In daily practice, dermoscopy may confirm clinical diagnoses and guides in the management of nail diseases and treatments, permitting a better visualization of symptoms. Dry dermoscopy is required for evaluation of the nail plate surface, while gel as an interface is necessary for assessment of nail pigmentation and onycholysis, as well as for the evaluation of the distal nail margin. In this review, we describe the dermoscopic features of the most important nail disorders, looking at the different areas of the nail. Dermatoscopic changes that usually accompany specific nail diseases are also reviewed.

show abstract

Patterns of nail matrix and bed of longitudinal melanonychia by intraoperative dermatoscopy

Cited by 81 publications

References 20 publications

Longitudinal melanonychia in an Iranian population: a study of 96 patients

Longitudinal melanonychia in an Iranian population: a study of 96 patients

Reassessing Melanonychia Striata in Phototypes IV, V, and VI Patients

Dermoscopy in the Evaluation of Nail Disorders

Contact Info

Product

Resources

About