Karen Holfeld

ORCID: 0009-0003-2064-2414
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Infectious Diseases and Mycology
  • Urticaria and Related Conditions
  • Oral Health Pathology and Treatment
  • Mycobacterium research and diagnosis
  • Skin Diseases and Diabetes
  • Contact Dermatitis and Allergies
  • Plant Virus Research Studies
  • Autoimmune and Inflammatory Disorders Research
  • Inflammatory Myopathies and Dermatomyositis
  • Family Support in Illness
  • Hair Growth and Disorders
  • Autoimmune and Inflammatory Disorders
  • Skin and Cellular Biology Research
  • Fungal Infections and Studies
  • Polyomavirus and related diseases
  • Inflammasome and immune disorders
  • Antifungal resistance and susceptibility
  • Autoimmune Bullous Skin Diseases
  • Acne and Rosacea Treatments and Effects
  • Nonmelanoma Skin Cancer Studies
  • Dermatological and Skeletal Disorders
  • Drug-Induced Adverse Reactions
  • Microbial infections and disease research
  • Hidradenitis Suppurativa and Treatments
  • Full-Duplex Wireless Communications

University of Saskatchewan
2014-2025

Regina Qu'Appelle Health Region
2017

University of Ottawa
1991

Ottawa Hospital
1990

Papulonodular mucinosis is a rare dermatological condition characterized by mucin deposition in the dermis, leading to formation of papules and nodules that can occur with, or antedate, autoimmune connective tissue diseases. This case report presents 67-year-old female with chronic history cutaneous mucinosis, which posed significant diagnostic challenges. Despite various treatments extensive workup, her evolved, highlighting difficulties diagnosing papulonodular especially absence systemic...

10.1177/2050313x241311372 article EN cc-by-nc SAGE Open Medical Case Reports 2025-01-01

Journal Article A study of acne treatments as risk factors for skin cancer the head and neck Get access D. J. HOGAN, HOGAN Department Dermatology, University Miami, Florida, U.S.A. Search other works by this author on: Oxford Academic Google Scholar TERESA TO, TO Cincinatti, Ohio, U.S.A E. ROYCE WILSON, WILSON A. B. MILLER, MILLER Preventive Medicine, Toronto, Ontario, Canada DIANE ROBSON, ROBSON Saskatchewan Cancer Foundation, Regina, Saskatchewan, KAREN HOLFELD, HOLFELD Division Ottawa, P....

10.1111/j.1365-2133.1991.tb14169.x article EN British Journal of Dermatology 1991-10-01

Background: Pustular psoriasis of the digits (acrodermatitis continua Hallopeau) may be localized to one or more for over an extended period time.Characteristic presentation is that tender, diffusely eroded, and fissured pustular plaques on digits.Transition other forms generalized known occur.These patients have increased risk acute exanthematous pustulosis (AGEP) compared general population.Pustular often therapy resistant. Main observations:We report case a 54-year-old Caucasian woman who...

10.3315/jdcr.2014.1170 article EN Journal of Dermatological Case Reports 2014-06-30

Abstract. We performed a controlled study to investigate the psychosocial problems of patients diagnosed and treated for basal cell carcinoma (BCC) as compared general population. Thirty‐nine BCC 39 matched controls answered questionnaire. Chi square analysis questionnaire results revealed no statistically significant difference between control group. In conclusion, more were found in than members

10.1111/j.1524-4725.1990.tb00114.x article EN The Journal of Dermatologic Surgery and Oncology 1990-08-01

Schnitzler syndrome (SS) is a rare autoinflammatory disorder characterized by recurrent urticarial rash and monoclonal immunoglobulin M gammopathy, as well 2 of the following minor criteria: fever (>38°C), objective signs abnormal bone remodeling, elevated C-reactive protein level or leukocytosis, neutrophilic infiltrate on skin biopsy. Alternatively, G gammopathy may be present along with 3 criteria for diagnosis.To report case SS without inform physicians this possible clinical...

10.1177/1203475416657999 article EN Journal of Cutaneous Medicine and Surgery 2016-06-30

<b><i>Background:</i></b> Pyoderma gangrenosum (PG) is a rare, chronic inflammatory condition exhibiting mucopurulent or hemorrhagic exudates. The majority of cases are associated with bowel disease, rheumatological diseases, and hematological malignancies. In the absence typical serological markers specific histopathological changes, diagnosis often clinical. Being it frequently misdiagnosed, which leads to delay in instituting appropriate therapy....

10.1159/000493188 article EN cc-by-nc Case Reports in Nephrology and Dialysis 2018-11-14

We present a case of milker’s nodules in 41-year-old rancher from Saskatchewan, Canada, with secondary complications consisting papular erythema and lymphadenopathy.

10.1177/2050313x20984118 article EN cc-by-nc SAGE Open Medical Case Reports 2020-01-01

Abstract Epidermolytic hyperkeratosis (EHK) is a rare skin condition characterized by erythroderma and blistering at birth, leading to generalized of varying severity in adulthood. EHK frequently mistaken for staphylococcal scalded syndrome (SSSS) or epidermolysis bullosa. usually inherited an autosomal dominant fashion, but very recessive families have been reported. Molecular genetic testing this patient identified novel homozygous keratin-10 gene ( KRT10 ) mutation consistent with...

10.1515/crpm-2016-0050 article EN Case Reports in Perinatal Medicine 2017-03-01

Blastomycosis is a primary pulmonary mycosis of humans usually affecting patients geographically located near the Great Lakes, Lake-of-the-Woods and northern Ontario. We report case cutaneous blastomycosis in patient with no environmental contact outside Saskatchewan.

10.1177/2050313x19897716 article EN cc-by-nc SAGE Open Medical Case Reports 2019-01-01

The Skin Investigation Network of Canada (SkIN Canada) completed a national Priority Setting Initiative to identify the top 10 knowledge uncertainties for Merkel cell carcinoma based on James Lind Alliance principles. Overall, 48 patients, clinicians and researchers provided input in two survey rounds one workshop. list research priorities will help skin community, funders policymakers address key benefit patients with carcinoma.

10.1093/bjd/ljad398 article EN British Journal of Dermatology 2023-10-21
Coming Soon ...