title: Giant basal cell carcinoma associated with human papillomaviruses infection.
abstract: Different criteria have been used to define giant basal cell carcinoma (BCC). However, the majority of tumors of 10 cm or greater in diameter have a characteristic clinical and histopathologic presentation. As a group, these tumors often show metastatic spread as opposed to all other BCCs that rarely metastasize. We present an additional patient with a giant BCC greater than 100 cm2. This tumor had a characteristic location and infiltrative growth pattern. Unusual features of this tumor included a lack of expression of BCL-2 with a greater proportion of cycling tumor cells expressing proliferation markers than conventional BCC, as well as expression of anogenital human papillomaviruses (HPV) subtypes with oncogenic potential. The association of HPV with BCCs has rarely been studied and may not be identical to HPV-induced genital squamous cell carcinomas. However, the findings in this patient suggest that HPV may play a role in the development of some chronic giant BCCs.
authors.affiliation: Department of Dermatology and Pathology, University of Alabama, Birmingham, AL, USA.
authors.forename: Marian
authors.initials: M
authors.lastname: Northington
authors.forename: Laura
authors.initials: L
authors.lastname: Tamburin
authors.forename: Sate
authors.initials: S
authors.lastname: Hamza
authors.forename: Hafeez
authors.initials: H
authors.lastname: Diwan
authors.forename: Henry
authors.initials: H
authors.lastname: Skelton
authors.forename: Kathleen
authors.initials: K
authors.lastname: Smith
mesh_terms: D014408:Biomarkers, Tumor / Q000032:analysis; D002280:Basal Cell Carcinoma / Q000737:chemistry / Q000473:pathology / Q000821:virology*; D002455:Cell Division; D017809:Fatal Outcome; D006801:Humans; D008297:Male; D008875:Middle Aged; D027383:Papillomaviridae / Q000145:classification / Q000302:isolation & purification*; D030361:Papillomavirus Infections / Q000150:complications / Q000473:pathology / Q000821:virology*; D019253:Proto-Oncogene Proteins c-bcl-2 / Q000378:metabolism; D012878:Skin Neoplasms / Q000737:chemistry / Q000473:pathology / Q000821:virology*; D016159:Tumor Suppressor Protein p53 / Q000378:metabolism
chemical_list: D014408:Biomarkers, Tumor; D019253:Proto-Oncogene Proteins c-bcl-2; D016159:Tumor Suppressor Protein p53