Onychoscopy: an observational study in 237 patients from the Kashmir Valley of North India.

Authors:
Yasmeen J Bhat
Yasmeen J Bhat
SKIMS Medical College
India
Iffat Hassan
Iffat Hassan
Government Medical College
India

Dermatol Pract Concept 2018 Oct 31;8(4):283-291. Epub 2018 Oct 31.

Postgraduate Department of Dermatology, STD & Leprosy, Government Medical College, Srinagar, University of Kashmir, Jammu & Kashmir, India.

Background: Nail disorders comprise approximately 10% of all dermatological conditions. Because diagnosis is not always possible by clinical means alone, additional diagnostic procedures may be required at times. Dermoscopy of nails (onychoscopy) has shown promising results in diagnosing various nail disorders and also avoids time-consuming investigations such as culture and biopsy.

Objective: To study the dermoscopic features of various nail disorders to determine the correlation between KOH examination and onychoscopic patterns in patients with the clinical suspicion of onychomycosis, and to differentiate benign pigmented lesions from malignant ones.

Methods: An open, observational and cross-sectional study of 237 patients was conducted. All patients underwent clinical examination and the affected nails were examined with a dermatoscope. The onychoscopic patterns were identified and recorded.

Results: The study included 237 patients with the following diagnoses: 81 onychomycosis, 63 psoriasis, 27 lichen planus, 30 longitudinal melanonychia, 24 connective tissue disorders, 5 onychophagia and nail tics, 3 subungual verrucae, 2 glomus tumor, 1 Darier disease, and 1 enchondroma. The most common onychoscopic findings were spiked pattern in cases of onychomycosis, dilated and tortuous capillaries in cases of psoriasis, longitudinal streaks and nail fragmentation in cases of lichen planus, and enlarged capillaries in cases of connective tissue diseases.

Limitations: The study was only observational and did not compare the results to biopsy and culture.

Conclusions: Onychoscopy may be used as an important diagnostic tool when evaluating nail disorders. It should be used to aid in the diagnosis of various nail disorders and to avoid unnecessary and time-consuming investigations.

Download full-text PDF

Source
http://dx.doi.org/10.5826/dpc.0804a06DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6246064PMC
October 2018
4 Reads

Publication Analysis

Top Keywords

nail disorders
20
237 patients
12
connective tissue
8
time-consuming investigations
8
capillaries cases
8
lichen planus
8
onychoscopic patterns
8
study 237
8
nail
7
disorders
6
patients
5
study
5
verrucae glomus
4
glomus tumor
4
patients diagnoses
4
diagnoses onychomycosis
4
onychomycosis psoriasis
4
psoriasis lichen
4
planus longitudinal
4
longitudinal melanonychia
4

Similar Publications