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GlossaryLichenoid Reaction (Lichenoid Dermatitis)

inflammatory skin condition resembling lichen planus with itchy bumps

A Lichenoid Reaction, also known as Lichenoid Dermatitis, is an inflammatory skin condition characterized by a rash that resembles lichen planus. It often presents as small, itchy, purple or red bumps on the skin and can be triggered by medications, infections, or autoimmune diseases. This reaction involves an immune response where T-cells attack the skin, leading to damage and inflammation.

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research Lichenoid Dermatitis from Interferon Alpha-2a in a Patient with Metastatic Renal Cell Carcinoma and Seronegative HCV

4 citations , April 2016 in “Journal of The American Academy of Dermatology”

A patient with advanced kidney cancer and no hepatitis C developed skin inflammation due to a drug called interferon alpha-2a.

research Human T-Lymphotropic Virus 1 (HTLV-1)-Associated Lichenoid Dermatitis Induced by CD8+ T Cells in HTLV-1 Carrier, HTLV-1-Associated Myelopathy/Tropical Spastic Paraparesis and Adult T-Cell Leukemia/Lymphoma

5 citations , June 2015 in “The Journal of Dermatology”

HTLV-1-associated lichenoid dermatitis (HALD) is linked to an immune response against HTLV-1-infected cells.

research Linear Lichen Planopilaris of the Trunk: First Report of a Case

18 citations , May 2006 in “Journal of Cutaneous Medicine and Surgery”

Linear lichen planopilaris can affect the trunk, not just the face.

research Red Dots in a Net-Like Pattern on the Upper Chest: A Novel Clinical Observation in Frontal Fibrosing Alopecia and Fibrosing Alopecia in Pattern Distribution

8 citations , August 2017 in “Skin appendage disorders”

Red dots on the upper chest may be an early sign of certain types of hair loss.

research Folliculocentric Papules and Alopecia in a 70-Year-Old Woman Diagnosed with Graham-Little-Piccardi-Lassueur Syndrome

May 2014 in “Clinical and Experimental Dermatology”

A 70-year-old woman with a rare skin condition improved after treatment with topical steroids and acitretin.

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community Losing Hair on Dutasteride? You might have LPP

in Research/Science 95 upvotes 7 months ago

Men with hair loss might have lichen planopilaris (LPP), which can mimic androgenetic alopecia, leading to misdiagnosis and ineffective treatment with finasteride or dutasteride. Proper diagnosis, including biopsies, is crucial to distinguish between androgenetic alopecia and conditions like LPP.

community DUPA/Retrograde might not be DHT based...GET A BIOPSY QUICK or permanent Hair Loss!

in Research/Science 43 upvotes 8 months ago

DUPA and retrograde alopecia may not be solely DHT-based, and a biopsy is crucial for accurate diagnosis and treatment. Treatments mentioned include dutasteride, oral minoxidil, pioglitazone, clobetasol, calcipotriol, ketoconazole, and doxycycline, depending on the specific condition.

community One year of progress (Fin, 1mg)

in Is this regrowth? 281 upvotes 9 months ago

The user started finasteride (1mg) a year ago for hair thinning, experiencing stabilization but not significant regrowth. Suggestions included adding minoxidil, microneedling, and considering a hair transplant for improved results.

community If You Have DUPA, PLEASE READ THIS: Everyone Should Be Scalp Biopsied

in Research 830 upvotes 1 year ago

Scalp biopsies are crucial for diagnosing hair loss conditions like Diffuse Unpatterned Alopecia (DUPA) and retrograde hair loss, as treatments like finasteride and dutasteride may not be effective if other conditions are present. Combining PPAR-GAMMA agonists with retinoids could improve treatments for conditions like Lichen Planopilaris.