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Vegetative pyoderma gangrenosum
MONDO:0035238A rare subtype of pyoderma gangrenosum disease characterized by a solitary, erythematous, ulcerated plaque, which lacks the violaceous border typically present in classic pyoderma gangrenosum, usually affecting individuals who are otherwise healthy. Histologically, the lesion presents a central layer containing neutrophilic inflammation, surrounded by a palisade of histiocytes, which are rimmed by a lymphocytic infiltrate. In comparison with the other variants of pyoderma gangrenosum, this subtype usually shows a good response to less aggressive treatments and underlying systemic disorders are less frequently associated. It is considered the most benign and uncommon clinical variant of pyoderma gangrenosum.
Also known as: Granulomatous pyoderma gangrenosum
47 clinical trials for this condition and its sub-types.
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Pausing arthritis drug may boost pneumonia Shot's power
Disease control Not yet recruitingThis study tests whether temporarily stopping methotrexate for 2 weeks after receiving a pneumonia vaccine (PCV20) helps the vaccine work better in adults with autoimmune rheumatic diseases like rheumatoid arthritis or lupus. About 192 participants with stable, low disease activi…
Phase: PHASE4 • Sponsor: University of Sao Paulo General Hospital • Aim: Disease control
Last updated Jun 27, 2026 12:00 UTC
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Skin deep: european study probes the hidden emotional toll of skin diseases
Knowledge-focused Not yet recruitingThis study looks at how people with skin conditions (like eczema, psoriasis, or skin cancer) manage stress, feel lonely, and bounce back from challenges. Researchers will compare 375 adults with and without skin disease across 15 European countries using questionnaires. The goal …
Phase: NA • Sponsor: University Hospital, Brest • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:06 UTC
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Can a quick skin scan reveal hidden inflammation in arthritis?
Knowledge-focused Not yet recruitingThis study will measure harmful molecules called AGEs in 300 people with various rheumatic diseases (like rheumatoid arthritis and ankylosing spondylitis) and compare them to healthy volunteers. AGEs build up over time and can cause inflammation. Researchers will use a non-invasi…
Sponsor: Bursa City Hospital • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:10 UTC
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New blood tests aim to unlock mysteries of rare inflammatory diseases
Knowledge-focused Not yet recruitingThis study aims to better understand rare autoinflammatory diseases by developing blood tests that measure inflammation markers. Researchers will analyze blood samples from 60 adults and children with these conditions. The goal is to identify specific inflammation pathways, which…
Sponsor: Hospices Civils de Lyon • Aim: Knowledge-focused
Last updated Jun 26, 2026 17:44 UTC