Videodermoscopy does not enhance diagnosis of scalp contact dermatitis due to topical minoxidil

Tosti, Antonella; Donati, Aline; Vincenzi, Colombina; Fabbrocini, Gabriella

doi:10.4103/0974-7753.58557

Cited by 8 publications

(4 citation statements)

References 11 publications

(16 reference statements)

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“…Trichoscopy of scalp contact dermatitis is similar to seborrhoeic dermatitis and reveals increased arborizing vessels, mild interfollicular scaling, and occasionally excoriations, and crusts (Fig. a) …”

Section: Resultsmentioning

confidence: 99%

Optical coherence tomography in diagnosis of inflammatory scalp disorders

Rajabi‐Estarabadi

Vasquez‐Herrera

Martínez‐Velasco³

et al. 2020

Acad Dermatol Venereol

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Background The common inflammatory scalp disorders share similar clinical manifestations, and patient work up require invasive, undesirable diagnostic procedures like biopsy to ensure correct diagnosis. Optical coherence tomography (OCT) is a non‐invasive high‐resolution imaging modality that has found a valuable tool to assist in the diagnose and evaluation of different skin diseases. Objectives To describe the structural and vascular dynamic OCT (D‐OCT) findings of inflammatory scalp disorders including scalp psoriasis, seborrhoeic dermatitis and contact dermatitis and to compare trichoscopy and OCT features. Methods Subjects with diagnosis of seborrhoeic dermatitis, psoriasis or contact dermatitis were enrolled in this study. OCT scans were taken on involved scalp, and the same scalp regions were evaluated by trichoscopy and compared with healthy scalp. Results A total of fourteen subjects (two healthy controls, four seborrhoeic dermatitis, five psoriasis and three contact dermatitis) participated. D‐OCT imaging of vascular pattern in healthy scalp and the inflammatory scalp disorders were described. D‐OCT images could enhance the clinician's ability to distinguish psoriasis from seborrhoeic dermatitis by objectively detect and assess red loop density. In scalp contact dermatitis, the vessels of the deep plexus were more dilated and fewer in number than those found in seborrhoeic dermatitis. Conclusion Dynamic OCT provides information that more clearly elucidates changes at the level of the superficial and deep plexuses without invasively interfering with superficial structures. In the context of inflammatory scalp disorders, this is useful to discern disorders with overlapping symptoms and minimize the use of invasive biopsies to diagnose.

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Section: Resultsmentioning

confidence: 99%

Optical coherence tomography in diagnosis of inflammatory scalp disorders

Rajabi‐Estarabadi

Vasquez‐Herrera

Martínez‐Velasco³

et al. 2020

Acad Dermatol Venereol

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“…Furthermore, the contact dermatitis caused by minoxidil can be occupational and affect the hands [39]. Videodermoscopy does not detect dermoscopic features to help distinguish scalp contact dermatitis due to topical minoxidil from other conditions that cause scalp itching, as no significant differences in vascular patterns or scaling have been found [40]. …”

Section: Discussionmentioning

confidence: 99%

Common Allergens Identified Based on Patch Test Results in Patients with Suspected Contact Dermatitis of the Scalp

Aleid

Fertig

Maddy

et al. 2016

Skin Appendage Disord

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Background: Contact dermatitis of the scalp is common and might be caused by many chemicals including metals, ingredients of shampoos and conditioners, dyes, or other hair treatments. Eliciting a careful history and patch tests are necessary to identify the responsible allergen and prevent relapses. Objectives: To identify allergens that may cause contact dermatitis of the scalp by reviewing patch test results. Methods: We reviewed the records of 1,015 patients referred for patch testing at the Dermatology Department of the University of Miami. A total of 226 patients (205 females and 21 males) with suspected scalp contact dermatitis were identified, and the patch test results and clinical data for those patients were analyzed. Most patients were referred for patch testing from a specialized hair clinic at our institution. Results: The most common allergens in our study population were nickel (23.8%), cobalt (21.0%), balsam of Peru (18.2%), fragrance mix (14.4%), carba mix (11.6%), and propylene glycol (PG) (8.8%). The majority of patients were females aged 40-59 years, and scalp itching or burning were reported as the most common symptom. Conclusion: Frequent sources of allergens for metals include hair clasps, pins, and brushes, while frequent sources of allergens for preservatives, fragrance mix, and balsam of Peru include shampoos, conditioners, and hair gels. Frequent sources of allergens for PG include topical medications.

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“…One original study and 2 case reports described the trichoscopic features of contact dermatitis of the scalp in a total of 10 patients [24][25][26]. Twisted red loops [26] and arborizing vessels [25] were reported (Fig.…”

Section: Contact Dermatitismentioning

confidence: 99%

Diagnostic Accuracy of Trichoscopy in Inflammatory Scalp Diseases: A Systematic Review

Golińska

Sar‐Pomian

Rudnicka³

2021

Dermatology

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Background: The common inflammatory scalp diseases, such as psoriasis, seborrheic dermatitis, lichen planopilaris, discoid lupus erythematosus, contact dermatitis, or pemphigus may share similar clinical features. Objective: To identify and systematically review the available evidence on the accuracy of trichoscopy in inflammatory scalp disorders. Methods: A systematic review was performed according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. A total of 58 articles were included in the analysis. Results: The following trichoscopy features were found to show the highest specificity for the respective diseases: in psoriasis: diffuse scaling, simple and twisted red loops, red dots and globules, and glomerular vessels; in seborrheic dermatitis: atypical vessels, thin arborizing vessels, and structureless red areas; in discoid lupus erythematosus: follicular plugs and erythema encircling follicles; in lichen planopilaris: milky red areas or fibrotic patches; in contact dermatitis: twisted red loops; in pemphigus foliaceus: white polygonal structures and serpentine vessels; in pemphigus vulgaris: red dots with whitish halo and lace-like vessels; and in dermatomyositis: lake-like vascular structures. Limitations: Different nomenclature and variability in parameters, which were analyzed in different studies. Conclusion: This systemic analysis indicates that trichoscopy may be used with high accuracy in the differential diagnosis of inflammatory scalp diseases.

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Videodermoscopy does not enhance diagnosis of scalp contact dermatitis due to topical minoxidil

Cited by 8 publications

References 11 publications

Optical coherence tomography in diagnosis of inflammatory scalp disorders

Optical coherence tomography in diagnosis of inflammatory scalp disorders

Common Allergens Identified Based on Patch Test Results in Patients with Suspected Contact Dermatitis of the Scalp

Diagnostic Accuracy of Trichoscopy in Inflammatory Scalp Diseases: A Systematic Review

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