Objectives: The presentation will introduce the topic of pigmented disorders in dermatology and discuss the prevalence, diagnosis, impact and cultural significance of pigmented lesions of the skin.

Introduction: Pigmented disorders are a common reason for consultation in dermatology. The prevalence of pigmented disorders is high both in children and adults and varies widely depending on population and skin type. Except for melanoma, pigmented lesions are generally benign. Nevertheless, these lesions can result in a significant burden of disease. In some societies, depigmentations can lead to divorce or even exclusion from society and marital prospects may be very poor, especially for women.

Materials / method: It is important to realize that hyperpigmentation, hypopigmentation and depigmentation are symptoms and purely descriptive terms and not a diagnosis. Therefore clinicians should always try to figure out the primary diagnosis.

Results: The therapeutic armamentarium for pigmented disorders is very broad, including topical therapies, systemic medications, peelings, ablative lasers and non-ablative lasers.

Conclusion: In conclusion physicians need to be aware of the psychosocial impact caused by pigmented disorders and of the cultural implications. Moreover, physicians need to know the treatment options for pigmented disorders and their limitations.

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Objectives: Identify pigmentary complications after laser use
Control preventive measures
Manage postinflammatory hyperpigmentation and hypochromia

Introduction: Post-inflammatory hyperpigmentation or hypopigmentation is a distressing situation having a negative impact on quality of life.
Pigmentary disorders, after esthetic laser procedures are often encountered when working on dark skinned patients and even on fair skin.

Materials / method: Through retrospective analysis of medical records during the last 5 years, of Patients under laser treatment for: acne scars, antiaging, stretch marks, hair removal
Medical records of pigmentary changes in an outpatient laser dermatology clinic in Tunisia.
Lasers used were: ablative CO2 laser (continuous and fractionted), Qswitched lasers, Alexandrite LP laser and LP Nd:Yag laser.
We have collected and photographied complications and the outcome of theses side effects, until resolution

Results: Postinflammatory hyperpigmentation was the most common side effect, succeeding to fractional CO2 laser, Q-switched laser for stretch marks, and to alexandrite laser hair removal. The pigmentation disappeared after an average of 2 months, with compleate healing.
Trasitory hypochromia was noticed after alexandrite hair removal on tanned skin.

Conclusion: We will discuss during this presentation, what are the preventive measures to avoid such complications, and how to manage pigmentary changes from the selection of the appropriate device and the right treatment parameters to the specified condition.

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