Interest of LC-OCT for Diagnosing Inflammatory Dermatoses: ODIN (OCT Dermotoses INflammatoires)

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

210 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-07-01

Study Completion Date

2024-06-30

Brief Summary

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Inflammatory dermatoses (eczematiform dermatoses, psoriasiform dermatoses, lichenoid dermatoses, toxic dermatoses, auto-immune and auto-inflammatory dermatoses, etc.) and their differential diagnoses (infectious or para-infectious dermatoses, deficiency dermatoses, etc.) are frequent reasons for dermatology consultations. These dermatoses are clinically heterogeneous eruptions for which a skin biopsy for histological examination may be routinely required to confirm the diagnosis.

LC-OCT (DeepLive Damae Medical machine) is a new non-invasive skin imaging technique (using non-ionizing infrared light), enabling observation of skin tissue to a depth of 500 µm with a resolution of 1 µm (= "cellular" resolution, the keratinocyte, the main skin cell, measuring between 5 and 10 µm).

This technique has already proved its worth in the diagnosis of skin cancers, and has the advantage of being non-invasive, painless and quicker than a biopsy. The investigators of the study want to study its value in the diagnosis of inflammatory dermatoses.

During the consultation dedicated to skin biopsy, a cutaneous LC-OCT examination is routinely performed, but only for exploratory purposes, allowing better targeting of the most modified area. The aim of the study is to describe and analyze the characteristics of cutaneous imaging (LC-OCT) in inflammatory dermatoses, comparing them with the histological appearance of biopsy specimens.

This is a preliminary study aimed at defining the value of LC-OCT in the diagnosis of inflammatory dermatoses, in the hope of replacing skin biopsy in the future.

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Detailed Description

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Conditions

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Inflammatory Skin Disease, Psoriasiform Dermatoses, Eczematiform Dermatoses, Lichenoid Dermatoses, Psoriasis, Eczema, Lichen, Lupus, Dermatomyositis

Study Design

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Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Study Groups

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Definitive histopathological diagnosis of eczematiform dermatosis

No interventions assigned to this group

Psoriasiform dermatosis

No interventions assigned to this group

Lichenoid dermatosis

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* \- Age greater than or equal to 18 years.
* Definitive histopathological diagnosis of inflammatory dermatosis, including classification by type (eczematiform, psoriasiform or lichenoid) and subtype (e.g. atopic dermatitis for eczematiform dermatosis, lupus for lichenoid dermatosis, etc.).
* Availability of good-quality LC-OCT images/videos, with at least one interpretable 3D block, a video scanning lesional and healthy skin in a manner deemed "sufficient", as judged collegially by the authors.