title: Photodynamic therapy for cutaneous verrucous carcinoma.
abstract: Cutaneous 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.
authors: Department of Dermatopathology, University Hospital of Liège, Belgium. af.nikkels@chu.ulg.ac.be
authors: Arjen F
authors: AF
authors: Nikkels
authors: Laurence
authors: L
authors: Thirion
authors: Pascale
authors: P
authors: Quatresooz
authors: Gérald E
authors: GE
authors: Piérard
mesh_terms: D000369:Aged, 80 and over; D000622:Aminolevulinic Acid / Q000008:administration & dosage / Q000031:analogs & derivatives / Q000627:therapeutic use; D018289:Carcinoma, Verrucous / Q000188:drug therapy* / Q000473:pathology; D002908:Chronic Disease; D004334:Drug Administration Schedule; D006801:Humans; D007868:Leg Dermatoses / Q000188:drug therapy* / Q000473:pathology; D008297:Male; D010778:Photochemotherapy; D017319:Photosensitizing Agents / Q000008:administration & dosage / Q000627:therapeutic use; D012878:Skin Neoplasms / Q000188:drug therapy* / Q000473:pathology; D016896:Treatment Outcome
chemical_list: D017319:Photosensitizing Agents; C475457:methyl 5-aminolevulinate; D000622:Aminolevulinic Acid