DermKnowledgeBASE: Equestrian Perniosis

Equestrian Perniosis

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The text is the summary of recent articles on Equestrian Perniosis at 75 thresold from National Library of Medicine (NLM). This information is subject to NCBI's Disclaimer and Copyright notice.

We describe the case of 51-year-old Female patient who underwent recent arthroscopic shoulder Surgery for repair of a rotator cuff tear and presented to the dermatology clinic for Painful and Erythematous Nodules on her Arm [1]. A punch Biopsy demonstrated a superficial and deep perivascular and periappendageal Lymphocytic Infiltrate with some spillover into the superficial subcutaneous adipose tissue [2]. Focal vacuolar changes along the basal Layer of the epidermis with a few dyskeratotic keratinocytes were present [3]. Tight fitting clothing, age under 35 years, and smoking can contribute to the disease manifestation [4]. perniosis of the thighs is quite uncommon and has been associated in the literature with horse riding (equestrian perniosis) or with other recreational activities with long time exposure to cold and humidity [5].

The clinical manifestations include Erythematous to Purpuric Plaques with a livedolike appearance and superficial ulceration [6].

References: 1 , 2 , 3 , 4 , 5 , 6 ,

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About Me

I have varied research interests ranging from eHealth, Health Information Exchange, Clinical Trials and Research, Contact Dermatitis, Bioinformatics, and Cosmetic Dermatology. I have work experience in Canada as an eHealth analyst, and in Dubai and India as a Specialist Dermatologist.


Bell Raj Eapen
Hamilton, ON