Dermoscopy of Hypo-pigmented Lesions in Children

NCT ID: NCT04089475

Last Updated: 2019-09-13

Basic Information

• Recruitment Status: UNKNOWN
• Total Enrollment: 150 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2019-11-01
• Study Completion Date: 2020-12-01

Brief Summary

Hypo-pigmented skin lesions in children are of great concern in the society. They cause anxiety among children and their parents due to the social stigma attached to these conditions especially in dark skinned children. Hypo pigmented skin lesions are commonly encountered in day-to-day practice, and they pose a diagnostic challenge for the clinician. They are one of the commonest complains in the dermatology clinics and generally share the same patient complaint which is characterized by the presence of hypo or depigmented patches or macules .

Dermoscopy may be a helpful as a non-invasive tool in assisting the differential diagnosis of several hypopigmented macular lesions and has the potential to improve the diagnostic accuracy.

Detailed Description

Among the most common disorders of hypo-pigmentation in children are pityriasis alba, vitiligo, nevus depigmentosus, postinflammatory hypopigmentation and tinea versicolor ; while idiopathic guttate hypomelanosis and hypopigmented mycosis fungoides comes late.

Pityriasis alba : is a low-grade type of eczema/dermatitis mostly occurring in children and young adults , usually seen as dry, fine-scaled, pale patches on the face .

Vitiligo : is an acquired, autoimmune, idiopathic disorder characterized by circumscribed depigmented macules and patches with or without leukotrichia .

Nevus depigmentosus : is a localized hypopigmentation which most of the time is congenital. It is considered as a form of cutaneous mosaicism.

Postinflammatory hypopigmentation : is an acquired partial or total loss of skin pigmentation occurring after cutaneous inflammation. Many cutaneous inflammatory conditions lead to postinflammatory hypopigmentation in children as :Atopic dermatitis , Insect bite reactions, Psoriasis, Stevens-Johnson syndrome ….; Infections as Chickenpox, Impetigo …..; Cutaneous injuries from burns, irritants .All tend to induce postinflammatory hypopigmentation rather than hyperpigmentation .

Pityriasis versicolor or tinea versicolor : is a fungal infection of the superficial layer of skin caused by Malassezia yeasts. It is clinically characterized by hyperpigmented or hypopigmented, round to oval lesions covered with scales commonly found on the trunk, upper arms and face. Although it's common in adults but it can be seen in older group of children .

Idiopathic guttate hypomelanosis : is an acquired leukoderma found in all races; Its pathogenesis is unknown but may depend on various factors such as patient age and sun-exposure. Clinically, the lesions are porcelain-white macules, usually 2-6 mm in size, but sometimes they are larger. The borders are sharply defined, often angular and irregular with normal skin markings.

Mycosis fungoides, the most common primary cutaneous T-cell lymphoma: is a neoplastic disease characterized by classical non-infiltrated lesions (patches), plaques, tumors, and erythrodermic stages .It is considered a serious condition that has been seen before in children. Hypopigmented mycosis fungoides is one of its variants that is presented by hypopigmented-to-achromic lesions, sometimes with a vitiligo-like aspect.

In addition to clinical picture, Woods light examination and potassium hydroxide scrapping for scaly hypopigmented macules and histopathological evaluation are used to be the gold standard tests for diagnosis of those hypopigmented lesions in children.

Dermoscopy is a noninvasive diagnostic tool that permits the visualization of morphological features that are not visible to the naked eye thus representing a link between macroscopic clinical dermatology and microscopic dermatopathology . Recently, awareness and knowledge of dermoscopy have increased tremendously in many countries in diagnosis of many skin conditions .

Dermoscopy may be a helpful as a non-invasive tool in assisting the differential diagnosis of several hypopigmented macular lesions and has the potential to improve the diagnostic accuracy. New studies have documented dermoscopic features in vitiligo , While very few reports have documented the dermoscopic features of the other hypopigmented lesions.

Conditions

Hypopigmented Skin

Study Design

• Observational Model Type: OTHER
• Study Time Perspective: PROSPECTIVE

Interventions

Dermoscope

Dermoscopy is a noninvasive diagnostic tool that permits the visualization of morphological features that are not visible to the naked eye thus representing a link between macroscopic clinical dermatology and microscopic dermatopathology.

Intervention Type: DEVICE

Eligibility Criteria

Inclusion Criteria

• All children up to (18) years old attending Assiut University Hospital complaining of hypopigmented skin lesions.

Exclusion Criteria

• Patients on topical or systemic treatment ( in the last 1 and 3 months , respectively) will be excluded.

• Maximum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Assiut University

OTHER

Sponsor Role: lead

Responsible Party

SNIsrael

principal investigator

Responsibility Role: PRINCIPAL_INVESTIGATOR

Central Contacts

Hatem Zidan, MDT

Role: CONTACT

hzma03@yahoo.com

00201003420217

Radwa Bakr, MDT

Role: CONTACT

radwabakr2011@hotmail.com

00201119988115

References

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Reference Type: BACKGROUND

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Reference Type: BACKGROUND

PMID: 31119026 (View on PubMed)

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Reference Type: BACKGROUND

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Reference Type: BACKGROUND

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Reference Type: BACKGROUND

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Reference Type: BACKGROUND

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Reference Type: BACKGROUND

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Other Identifiers

DHLC

Identifier Type: -

Identifier Source: org_study_id