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'Riehl Melanosis' (19)


Aug
2016

Pigmented cosmetic dermatitis-like (Riehl's melanosis-like) pigmentation was reported in three of 27 patients with primary Sjögren's syndrome. But case reports of such eruptions are rare. We describe three cases of such eruptions associated with primary Sjögren's syndrome or anti-SSA antibody and possible associations with specific types of human leukocyte antigen (HLA) and infiltrating lymphocytes.

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Jun
2015

Riehl's melanosis, a form of dermatitis characterized by reticulate pigmentation, typically presents as a gray-brown to black hyperpigmentation on the face and neck. Among the various etiologic factors suggested, photoallergic reaction and pigmented contact dermatitis resulting from exposure to drugs, coal tar dyes, optical whitener, or other ingredients found in cosmetics are believed to be the major contributing factors in this disease. The histopathological features of Riehl's melanosis mainly consist of pigmentary incontinence along with infiltration of numerous dermal melanophages and lymphohistiocytes.

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Dec
2014

The treatment of Riehl's melanosis is difficult and challenging. Recently, a low-fluence 1064-nm quality (Q)-switched neodymium: yttrium-aluminum-garnet (Nd: YAG) laser method, referred to as 'laser toning', has been used in the treatment of melasma in Asian countries. We present here a series of cases of Riehl's melanosis that were treated effectively with a novel Q-switched Nd: YAG laser that was operated as a dual-pulse at half-fluence and 140-μs intervals.

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Mar
2014

Riehl melanosis is a rare cause of skin hyperpigmentation that typically occurs on the face and neck and is characterized by the rapid onset of gray-brown reticular pigmentation. It is theorized to be a pigmented contact dermatitis or a lichenoid immune reaction that may be caused by intrinsic as well as extrinsic factors. Treatment is challenging; laser and intense pulsed light (IPL) therapy is a common treatment for other pigmented skin conditions.

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Mar
2012

Acquired bilateral patchy or mottled pigmentation of the neck has occasionally been observed.
To investigate the clinical and histopathological characteristics of this pigmentation.
Fourteen patients were included in the study.

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Dec
1969

Skin disorders connected with pigmentation disturbances are most frequent dermatological problems. Different mechanisms are involved in these changes, mainly those which regulate melanocyte function. In this work we focused on molecular basis of pigmentation disorders in dermatological diseases that present clinically with hyperpigmentation (lentigo senilis, Riehl melanosis, seborrhoic keratosis, fibroma, café-au-lait patches melasma, atopic dermatitis) or hypopigmentation (vitiligo, albinism).

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Dec
1969

To describe a case of idiopathic choroidal neovascularization (CNV) in a patient with Riehl melanosis.
Description of a 34-year-old woman with Riehl melanosis who developed CNV in the right eye.
All other known causes of CNV were investigated and ruled out.

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May
1994

An AIDS patient with the cardinal complaint of severe pigmentation on the face is reported. Hyperpigmentation is an unusual symptom of AIDS. This is a Japanese patient who presented melanosis Riehl-like discoloration.

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Mar
1982

Riehl's melanosis.

Int J Dermatol 1982 Mar;21(2):75-8
H rorsman
In Riehl's melanosis, first observed in 1917, facial hyperpigmentation, most pronounced on the forehead and in the zygomatic and/or temporal regions is the dominant symptom. Riehl could find no explanation for the condition, but suggested that certain foods used during the war could be responsible. Riehl's melanosis has later been observed in dark-complexioned people in whom hyperpigmentation with pigment incontinence may be the main sign of contact dermatitis caused by certain allergens.

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May
1952


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Oct
1948

[Not Available].

Ned Tijdschr Geneeskd 1948 Oct;92(42):3361
J GROEN

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Oct
1948

[Not Available].

Klin Med Osterr Z Wiss Prakt Med 1948 Oct;3(20):831
KUMER

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Oct
1948

[Not Available].

Wien Klin Wochenschr 1948 Oct;60(40):660
KONRAD

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Sep
1948

[Not Available].

Wien Klin Wochenschr 1948 Sep;60(35-36):594-6
L ARZT

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Jun
1948

[Not Available].

Med Usine Rev Hyg Ind Mal Prof 1948 Jun;10(6):272-4
JOULIA, LE COULANT, L'EPREE

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Feb
1948

[Not Available].

Lyon Med 1948 Feb;179(5):87
P J MICHEL, J SAINT-PAUL

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Apr
1947

[Not Available].

Lyon Med 1947 Apr;179(14):242
M DE CASABAN

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Jan
1947

Melanosis of Riehl.

Arch Derm Syphilol 1947 Jan;55(1):148
H E MICHELSON

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