Publications by authors named "Jeffrey Callen"

Article Synopsis
  • * The study reviewed 1582 publications from 1904 to 2023, narrowing it down to 22 studies, primarily case reports from the USA, UK, and France, involving 148 patients with skin symptoms associated with HH.
  • * Key findings highlight diverse skin symptoms such as hyperpigmentation and resistant pruritus linked to iron deposition, while also indicating potential links between HH and skin cancers, underlining the importance of early identification for familial care.
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Pyoderma gangrenosum (PG) is an inflammatory neutrophilic dermatosis with variable clinical features. The classic presentation is an ulceration with an erythematous to violaceous undermined border. Extracutaneous manifestations may occur.

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At present, there are no standardized guidelines for determining patient eligibility for pyoderma gangrenosum (PG) clinical trials. Thus, we aim to determine which clinical features, histopathological features, or laboratory features should be included in active ulcerative PG clinical trial eligibility criteria for treatment-naïve patients and patients already treated with immunomodulating medications (treatment-exposed patients). This study employed 4 rounds of the Delphi technique.

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Article Synopsis
  • - Adult-onset idiopathic inflammatory myopathy (IIM) increases cancer risk around its onset, prompting the need for tailored cancer screening strategies.
  • - An international expert group developed 18 recommendations using a modified Delphi method, focusing on risk stratification and cancer screening based on IIM subtype and clinical features.
  • - The guidelines specify 'basic' and 'enhanced' cancer screening panels and suggest timing and frequency for screenings, including additional procedures for high-risk patients, aiming for earlier cancer detection and improved survival rates.
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Methotrexate (MTX) is a readily accessible drug, first used in 1948 and employed for a wide variety of indications since then. However, despite widespread off-label use, FDA labeling does not include approved indications for the use of MTX for many inflammatory skin diseases in pediatric patients, including morphea, psoriasis, atopic dermatitis, and alopecia areata, among others. Without published treatment guidelines, some clinicians may be hesitant to use MTX off-label, or uncomfortable prescribing MTX in this population.

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Cutaneous adverse drug reactions produce a significant clinical, financial, and psychological burden on our healthcare industry. The importance of considering a drug reaction in the cause of any dermatitis is underscored by the diversity of clinical manifestations and the prolific rate of drug discovery and approval. We present an update on the variety of drug reactions encountered in the inpatient and outpatient setting.

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Objectives: To identify clinical factors associated with cancer risk in the idiopathic inflammatory myopathies (IIMs) and to systematically review the existing evidence related to cancer screening.

Methods: A systematic literature search was carried out on Medline, Embase and Scopus. Cancer risk within the IIM population (i.

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Numerous drugs have been linked to the induction or exacerbation of systemic cutaneous lupus erythematosus (SCLE). This report presents the third case of the biologic abatacept as an exacerbating medication for SCLE. A 73-year old woman with a remote history of subacute cutaneous lupus and rheumatoid arthritis, well controlled on hydroxychloroquine, presented with worsening annular erythematous, slightly scaly plaques on her forearms and hands.

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Pyoderma gangrenosum (PG) is a rare neutrophilic dermatosis that presents with rapidly developing, painful skin ulcers hallmarked by undermined borders and peripheral erythema. Epidemiological studies indicate that the average age of PG onset is in the mid-40s, with an incidence of a few cases per million person-years. PG is often associated with a variety of other immune-mediated diseases, most commonly inflammatory bowel disease and rheumatoid arthritis.

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