title: Verrucous carcinoma of the face with a massive neutrophil infiltrate. Analysis of leucocyte chemotactic activity in the tumour extract.
abstract: An unusual case of verrucous carcinoma of the face with a massive infiltration of neutrophils was found in a 60-year-old Japanese man who presented with a scaly, crusty tumour studded with pustules of 3 years duration on the left cheek. Histological examination showed a proliferation of deceptively benign-looking epidermal cells with an intact basement membrane, accompanied by a dermal infiltration of neutrophils and mononuclear cells and formation of microabscesses containing multinucleate giant cells, suggesting deep fungal infection or blastomycosis-like pyoderma. The lesion, however, was unresponsive to antifungal or antibacterial treatments and ultimately attained a considerable size in the following months. Based on the findings of repeat biopsy conducted 4 months later indicating further deeper invasion, a diagnosis of verrucous carcinoma of the face was made, and a total excision of the tumour and left cervical lymph node dissection were finally carried out. It can be speculated that aberrant production of leucocyte chemotactic cytokines such as interleukin-8 by dysplastic keratinocytes, subsequent neutrophil infiltration/serum permeation, generation of leucotactic anaphylatoxin C5a from serum through complement activation and of lipid chemotactic factors (leukotriene B4 and 12-hydroxy-eicosatetraenoic acid) by infiltrating leucocytes and/or dysplastic keratinocytes provoked the characteristic accumulation of neutrophils in the verrucous carcinoma of this case.
authors.affiliation: Department of Dermatology, Tohoku University School of Medicine Sendai, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Takematsu
authors.forename: M
authors.initials: M
authors.lastname: Watanabe
authors.forename: J
authors.initials: J
authors.lastname: Matsunaga
authors.forename: H
authors.initials: H
authors.lastname: Ueno
authors.forename: H
authors.initials: H
authors.lastname: Tagami
mesh_terms: D018289:Carcinoma, Verrucous / Q000276:immunology / Q000473:pathology*; D002634:Chemotaxis, Leukocyte; D005153:Facial Neoplasms / Q000276:immunology / Q000473:pathology*; D006801:Humans; D015603:Keratinocytes / Q000276:immunology; D008297:Male; D008875:Middle Aged; D009504:Neutrophils / Q000473:pathology*