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Photodynamic therapy for cutaneous verrucous carcinoma.

AbstractCutaneous verrucous carcinoma is a low-grade and well-differentiated variant of squamous cell carcinoma. This rare neoplasm follows a seemingly indolent progression and exhibits a low metastatic potential. Photodynamic therapy relies on the selective intratumoral cell accumulation and photoactivation of a photosensitizer, leading to the generation of phototoxic compounds responsible for necrosis and apoptosis of the target cells. An 82-year-old man presenting with a large long-standing verrucous carcinoma on the leg was treated successfully by 6 photodynamic therapy sessions administered at weekly intervals using methyl-aminolevulinate and 57-J/cm(2) irradiations at 634-nm wavelength. The use of methyl-aminolevulinate-photodynamic therapy for treating cutaneous verrucous carcinoma had not been reported so far. It may represent a convenient therapeutic alternative in this setting.
AuthorsArjen F Nikkels, Laurence Thirion, Pascale Quatresooz, Gérald E Piérard (Affiliation: Department of Dermatopathology, University Hospital of Liège, Belgium. af.nikkels at chu.ulg.ac.be)
JournalJournal of the American Academy of Dermatology (J Am Acad Dermatol) Vol. 57 Issue 3 Pg. 516-9 (Sep 2007) ISSN: 1097-6787 United States
PMID17434646 (Publication Type: Case Reports, Journal Article)
Chemical References
  • Photosensitizing Agents
  • methyl 5-aminolevulinate
  • Aminolevulinic Acid
Topics
  • Aged, 80 and over
  • Aminolevulinic Acid (administration & dosage, analogs & derivatives, therapeutic use)
  • Carcinoma, Verrucous (drug therapy, pathology)
  • Chronic Disease
  • Drug Administration Schedule
  • Humans
  • Leg Dermatoses (drug therapy, pathology)
  • Male
  • Photochemotherapy
  • Photosensitizing Agents (administration & dosage, therapeutic use)
  • Skin Neoplasms (drug therapy, pathology)
  • Treatment Outcome