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GlossaryLichenoid Reaction

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 Denosumab-Induced Alopecia Areata with Lichenoid Eruption

3 citations, November 2021 in “JAAD case reports”

Denosumab, a bone loss treatment, may cause hair loss and skin reactions due to immune system effects.

research Cutaneous Drug Eruptions Associated with the Use of Biologics and Cutaneous Drug Eruptions Mimicking Specific Skin Diseases

4 citations, January 2012 in “Chemical Immunology”

Some drugs, especially biologics, can cause skin reactions that look like other skin diseases, and stopping the drug usually helps clear up these reactions.

research Drug Eruptions

November 2014

Any medication can cause skin reactions, some due to allergies and others due to dosage or genetic factors.

research A Review of Adverse Cutaneous Drug Reactions Resulting from the Use of Interferon and Ribavirin

64 citations, January 2009 in “Canadian Journal of Gastroenterology”

Interferon and ribavirin can cause serious skin reactions and other health issues.

research Predictive Factors for Adverse Dermatological Events During Pegylated/Interferon Alpha and Ribavirin Treatment for Hepatitis C

11 citations, July 2014 in “Journal of Clinical Virology”

Older age, pre-existing skin conditions, cirrhosis, and pegylated interferon use increase the risk of skin issues during hepatitis C treatment.

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community Diffuse hair loss and scalp biopsies

in Research 692 upvotes 1 month 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.