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Prof. Dr. med. Chalid Assaf image

Department of dermatology and venerology

Prof. Dr. med. Chalid Assaf
dermatology, venerology

About the department

The department of dermatology and venerology at Helios Hospital Krefeld provides the diagnosis and treatment of allergies, skin diseases and venereal diseases, including many rare or complex. In their practice, doctors of the department use only advanced treatment methods that meet the highest standards of international medicine. The department includes a highly specialised Skin Cancer Center certified by the German Cancer Society (DGK). The therapeutic range of services of the department consists of conservative treatment, such as chemotherapy, radiation therapy, immunotherapy, cryotherapy and photodynamic therapy. The department's primary focus is the microscopic evaluation of skin tissue and subcutaneous tissue samples - dermatohistology. Special staining and immunohistology or immunofluorescence help establish the diagnosis, especially in severe clinical cases. Patients with advanced stages of skin cancer are offered the opportunity to participate in national and international clinical trials.

The department's main tasks also include the treatment of acute and chronic inflammatory skin diseases, chronic wounds, autoimmune skin diseases, and venereal diseases. Treatment options include extracorporeal photophoresis, immunoadsorption, and immunobiological therapy.

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Treatment and diagnostic focus of the department

Diagnosis: 

  • Skin cancer 
  • Psoriasis 
  • Neurodermatitis 
  • Infections of the skin 
  • An acute and chronic wound 
  • Autoimmune disease of the skin 
  • Rhinophyma 
  • Lupus 
  • Scleroderma
  • Allergies 
  • Burns
  • Genital warts 
  • Diabetic foot syndrome 
  • Hidradenitis supurativa (acne inversa)

Diagnostic: 

  • Anamnesis (including family history)
  • Physical examination
  • Laboratory tests
  • Patch testing (to detect allergic contact dermatitis) 
  • Wood light examination (to detect bacterial or fungal skin infections)
  • Tzanck smear (to rapidly detect a herpes infection)
  • Dermatoscopy 
  • Dermatohistopathology
  • Biopsies, including muscle biopsies

Treatment: 

  • Drugs modulating the immune system
  • Tissue removal for inflammatory diseases
  • Skin plastics after accidents or burns 
  • Treatment of phimosis (circumcision for inflammation or narrowing of the foreskin)
  • Scar corrections
  • Surgical correction of so-called tuberous noses 
  • Punching, scraping, and laser therapy for removal of moles and birthmarks
  • Extracorporeal photopheresis
  • Immunoadsorption
  • Other treatment procedures 
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Doctor profile

Education

  • 2008 Habilitation, Venia Legendi in Dermatology
  • 2003 German Board Certification (Medical Specialist)
  • 2001 Doctoral Thesis
  • 1999 - 2003 Internship, Department of Dermatology and Venereology, Benjamin Franklin Campus, Free University of Berlin, Berlin, Germany
  • 1997 - 1999 Internship at the Department of Pathology, Benjamin Franklin Campus, Free University of Berlin, Germany
  • 1993 Extern Fellowship, John Radcliffe Hospital, University of Oxford, UK

Experience

  • Since 2009 Head of the Department of Dermatology and Venereology, Helios Clinic Krefeld
  • 2004 - 2008 Head of the Lymphoma Section of the Skin Cancer Center Charité
  • 2005 - 2008 Senior Physician of the Department of Dermatology, University Hospital Charité, Berlin.
  • 2003 - 2004 Specialist at the Department of Dermatology and Venereology, Benjamin Franklin Campus, Free University of Berlin, Berlin, Germany

Awards, memberships, publications

  • Care structure of patients with mycosis fungoides and Sézary syndrome in Germany – Care research based on SHI claims data
  • The optimal use of chlormethine gel for mycosis fungoides: An expert consensus from Germany, Austria and Switzerland (DACH region)
  • Transcriptomic changes during stage progression of mycosis fungoides: from translational analyses to their potential clinical implications
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