Gingival hyperpigmentation and the condition known as gummy smile are very common dental cosmetic problems. Gingival hyperpigmentation arises due to the excess presence of melanin in certain regions of the gums. In the case of gummy smile, more than the required amount of gingival tissue is exposed upon smiling. An aesthetically pleasing smile should expose only a negligible amount of gingival ...

A 55-year-old white woman receiving peginterferon alfa2a (180 mg) and ribavirin (1200 mg) combination therapy for hepatitis C virus (HCV; genotype 1b) infection complained of a burning sensation and discomfort in her tongue in the second month, and tongue hyperpigmentation in the fourth month of the therapy. Physical examination revealed hyperpigmentation on the lateral and dorsal parts of the ...

BACKGROUND Axillary hyperpigmentation is a frequent cause of cosmetic consultations in dark-skinned women from tropical areas, including Latin America. Currently, there is no widely accepted treatment for the disorder, but it is usually treated with bleaching agents because it is considered a variant of inflammatory hyperpigmentation. The purpose of this study was to assess the efficacy of niac...

Post-inflammatory hyperpigmentation after acne can be as troublesome as the acne itself. Hydroquinone, a tyrosinase inhibitor, in a 4% cream can be used safely twice daily for up to 6 months to treat post-inflammatory hyperpigmentation. The efficacy of this treatment can be enhanced by using a retinoid nightly and a mid-potent steroid, which is applied twice daily for 2 weeks, then at weekends ...

Cutaneous hyperpigmentation may be caused by a number of diseases, such as Addison’s disease, scleroderma, haemochromatosis, Peutz-Jeghers syndrome, lichen planus, and adverse reactions to some medications such as oral contraceptives, cyclophosphamide, chloroquine, minocycline, bleomycin, ketoconazole and methyldopa (1). Hyperpigmentation of the tongue, face and body skin is a rare adverse effe...

The author provides his perspective on resurfacing procedures in dark-skinned patients, advising a cautious approach to laser resurfacing. Laser complications in Fitzpatrick skin types III to VI, including hyperpigmentation, hypopigmentation, and scarring, are well documented. Unlike chemical peeling and dermabrasion, with laser resurfacing, preoperative treatment does not control postoperative...

Bleomycin is a chemotherapeutic agent used in the treatment of different tumours. It has several side effects, including flagellate hyperpigmentation, which is a unique and a well-documented side effect of bleomycin therapy. We report a case of a 23-year-old woman with a personal history of ovarian dysgerminoma, who developed flagellate hyperpigmentation on trunk after bleomycin therapy.

Sir, Mucocutaneous side effects associated with bleomycin are stomatitis, ulcers, scaly erythematous and bullous lesions, sclerosis, nail changes, digital gangrene and pigmentary alterations. Hyperpigmentation occurring mainly on the pressure areas of the skin as well as in areas of scratch marks is seen in approximately 30% of patients. Flagellate hyperpigmentation is very characteristic of bl...

Skin hyperpigmentation is characterized as increased production and accumulation of melanin, which could be aesthetically unfavorable and develops serious skin diseases. There is a need to find new depigmenting agents, since many current natural and synthetic products present undesired side effects. In Iranian traditional medicine (ITM), plants have been used for the treatment of skin diseases ...

Minocycline is a tetracycline derivative antibiotic commonly prescribed for acne, rosacea, and other inflammatory skin disorders. Minocycline turns black when oxidized, leading to discoloration of the skin, nails, bulbar conjunctiva, oral mucosa, teeth, bones, and thyroid gland. Hyperpigmentation has been reported after long-term minocycline therapy with at least 100 mg/day. Three types of mino...