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Conforti C, Paolini F, Venuti A, Dianzani C, Zalaudek I. The detection rate of human papillomavirus in well-differentiated squamous cell carcinoma and keratoacanthoma: is there new evidence for a viral pathogenesis of keratoacanthoma? Br J Dermatol 2019; 181:1309-1311. [PMID: 31175661 DOI: 10.1111/bjd.18212] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- C Conforti
- Dermatology Clinic, Maggiore Hospital, Piazza dell'Ospitale 1, University of Trieste, Trieste, Italy
| | - F Paolini
- HPV-Unit, Unità Operativa Semplice Dipartimentale (UOSD) Tumor Immunology and Immunotherapy, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - A Venuti
- HPV-Unit, Unità Operativa Semplice Dipartimentale (UOSD) Tumor Immunology and Immunotherapy, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - C Dianzani
- Department of Plastic, Reconstructive and Cosmetic Surgery, Campus Bio-Medico University Hospital, Rome, Italy
| | - I Zalaudek
- Dermatology Clinic, Maggiore Hospital, Piazza dell'Ospitale 1, University of Trieste, Trieste, Italy
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Roh MR, Kim JH, Lee SH, Oh SJ, Park KH, Chung KY, Rha SY. Prevalence of human papillomavirus infection and RAS mutation in sporadic keratoacanthoma. Int J Dermatol 2015; 54:e453-7. [PMID: 26016383 DOI: 10.1111/ijd.12669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Revised: 01/01/2014] [Accepted: 01/21/2014] [Indexed: 12/01/2022]
Abstract
BACKGROUND RAS gene activation and its association with human papillomavirus (HPV) infection have been extensively studied in various cancers. However, the correlation between RAS mutations and HPV in keratoacanthoma (KA) has not yet been investigated. METHODS Detection of HPV DNA was performed by nested polymerase chain reaction in 28 KA specimens. Molecular analysis was also performed to identify oncogenic mutations (HRAS, KRAS, NRAS). Statistical analyses were performed using the Fisher's exact tests. RESULTS HPV DNA was detected in eight (28.6%) of the 28 samples, and RAS mutations were detected in eight (28.6%). Six samples had an HRAS mutation, and two showed the NRAS mutation. The presence of an RAS mutation was significantly correlated with a history of chronic sun damage (P = 0.005). However, no significant correlation was observed between HPV infection and RAS mutation. CONCLUSIONS Our findings suggest that mutational activation of the RAS gene is a common event in KA. However, RAS oncogene activation and HPV infection seem to represent two independent factors in the development of KA.
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Affiliation(s)
- Mi Ryung Roh
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jee Hung Kim
- Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - Sang Hee Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Seung Joon Oh
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Kyu Hyun Park
- Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - Kee Yang Chung
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Sun Young Rha
- Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
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3
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Abstract
Nearly 200 distinct human papilloma viruses (HPVs) have now been recognized, and each is associated with a specific set of clinical lesions. They are associated with a spectrum of diseases, from benign verrucae vulgares and condylomata acuminata to the malignancies of the cervix, vulva, anus, and penis. Disease associated with HPV can be divided into skin and mucosal lesion of the genital and extragenital regions. The relationship between HPV and nonmelanoma skin cancer (NMSC) is important clinically, because NMSC is the most common form of malignancy among fair-skinned populations. HPVs have also been detected in skin tags, lichen sclerosus, seborrheic keratoses, actinic keratoses, epidermal cysts, psoriatic plaques, and plucked hairs, but cutaneous HPV can be found on healthy skin.
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Affiliation(s)
- Suzana Ljubojevic
- Department of Dermatology and Venereology, University Hospital Center Zagreb, School of Medicine University of Zagreb, Zagreb, Croatia.
| | - Mihael Skerlev
- Department of Dermatology and Venereology, University Hospital Center Zagreb, School of Medicine University of Zagreb, Zagreb, Croatia
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Youn SM, Lee JH, Park WS, Song DK, Suh SI, Kim DK. No association between genital-mucosal human papilloma virus infection and keratoacanthoma in Korean patients. J Cutan Pathol 2010; 38:256-8. [DOI: 10.1111/j.1600-0560.2010.01630.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mandrell JC, Santa Cruz D. Keratoacanthoma: hyperplasia, benign neoplasm, or a type of squamous cell carcinoma? Semin Diagn Pathol 2010; 26:150-63. [PMID: 20043514 DOI: 10.1053/j.semdp.2009.09.003] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Keratoacanthomas are common self limited squamous proliferations. They have been considered a benign neoplasm with involution and complete resolution within few months. Although considered the prototypical example of cutaneous pseudomalignancy, some believe that these tumors are squamous cell carcinomas and through the years there have been sporadic reports of "metastasizing keratoacanthomas". The question has been raised as to whether keratoacanthoma is an unreliable histological diagnosis or these tumors have a latent, albeit rare, malignant potential. To date, just a handful of "metastasizing keratoacanthomas" have been reported. Since a benign lesion is incapable of metastasis, some other explanation must be considered; the most likely one being a misdiagnosis. While it is clear that in some cases, the histological and cytological features of squamous cell carcinoma and keratoacanthoma are difficult to distinguish by current techniques, these occasional limitations in diagnosis do not make keratoacanthomas a carcinoma. We believe the evidence supports that keratoacanthomas are benign squamous proliferations. The diagnosis can be made with confidence in appropriate biopsies and using well established clinicopathological criteria.
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Mastoraki A, Ioannidis E, Patsouris E, Safioleas M, Aroni K. PGP 9.5 expression in cutaneous keratoacanthomas and squamous cell carcinomas. Arch Dermatol Res 2009; 301:653-8. [DOI: 10.1007/s00403-009-0962-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2008] [Revised: 05/06/2009] [Accepted: 05/11/2009] [Indexed: 12/01/2022]
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7
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Aroni K, Mastoraki A, Kyriazi E, Ioannidis E, Patsouris E. Silver-stained organizer regions and immunoglobulins in cutaneous keratoacanthomas and squamous cell carcinomas. Pathol Res Pract 2007; 203:659-65. [PMID: 17673372 DOI: 10.1016/j.prp.2007.05.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2007] [Accepted: 05/25/2007] [Indexed: 11/19/2022]
Abstract
The aim of this study was to investigate the biologic activity of epidermal cells in keratoacanthomas (KAs) and squamous cell carcinomas (SCCs) by counting the number of silver-stained nucleolar organizer regions (AgNORs), to estimate the quantity of Ig-producing cells and the inflammatory cellular infiltrate (ICI), and to make a comparative evaluation. Thirty KAs (10 at growth stage, 10 at mature stage, and 10 at involution stage) and 28 SCCs (nine well differentiated-Grade 1 (G1), seven moderately differentiated-Grade 2 (G2), five poorly differentiated-Grade 3 (G3), and seven pseudoadenoid) were investigated. The KAs examined had a mean number of 1.727 AgNORs (S.D. 0.232), and IgG predominated in most cases. IgG and IgE increase at the involution, IgA remains at almost the same level, and IgM decreases during the maturity stage. The SCCs examined had a mean number of 2.105 AgNORs (S.D. 0.446). IgG predominated and gradually increased in proportion to the degree of malignancy. There is a significant difference in the number of AgNORs and the proportion of Ig subclasses in contrast to the cellular infiltrate among the three stages of KA. In SCCs, the number of AgNORs and the percentage of Igs and ICI increased gradually in proportion to the degree of malignancy.
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Affiliation(s)
- Kiriaki Aroni
- Department of Dermatopathology, University of Athens, 75 Mikras Asias Str., GR-11527 Athens, Greece
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8
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Combined 5-Fluorouracil and Er:YAG Laser Treatment in a Case of Recurrent Giant Keratoacanthoma of the Lower Leg. Dermatol Surg 2004. [DOI: 10.1097/00042728-200412020-00016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Thiele JJ, Ziemer M, Fuchs S, Elsner P. Combined 5-Fluorouracil and Er:YAG Laser Treatment in a Case of Recurrent Giant Keratoacanthoma of the Lower Leg. Dermatol Surg 2004; 30:1556-60. [PMID: 15606840 DOI: 10.1111/j.1524-4725.2004.30559.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Keratoacanthomas are fast-growing squamous tumors, which usually show spontaneous regression. The development of giant variants with an aggressive behavior has been described. Although surgical excision remains the treatment of choice for very large keratoacanthomas, other therapeutic options including laser surgery and topical chemotherapy may be superior in special situations. OBJECTIVE The objective was to evaluate the efficacy of Er:YAG laser surgery combined with topical 5-fluorouracil treatment in a case of recurrent giant keratoacanthoma. METHODS A 64-year-old woman presented for evaluation and treatment of recurrent tumors in her face and extremities. Despite repeated invasive surgical removal of these lesions, recurrence of fast-growing giant keratoacanthomas developed in the pretibial region of her left lower leg. Owing to recurrence after conventional surgery and the tumor size, a novel treatment method using ablative Er:YAG laser combined with topical 5-fluorouracil was performed. RESULTS After four treatments with excellent patient compliance, histologic analysis of punch biopsies revealed tumor-free ulcerations. Complete epithelization was obtained after 9 weeks. Six months after the treatment, no recurrence was observed. CONCLUSION The combined use of ablative Er:YAG laser and topical 5-fluorouracil chemotherapy may be considered as an effective treatment option in cases of giant keratoacanthoma when conventional surgery is not indicated.
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Affiliation(s)
- Jens J Thiele
- Department of Dermatology, Friedrich-Schiller-University of Jena, Jena, Germany.
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10
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Forslund O, DeAngelis PM, Beigi M, Schjølberg AR, Clausen OPF. Identification of human papillomavirus in keratoacanthomas. J Cutan Pathol 2003; 30:423-9. [PMID: 12859739 DOI: 10.1034/j.1600-0560.2003.00092.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Keratoacanthomas are benign, clinically distinct skin tumors that may infiltrate and show cellular atypia. A viral etiology has been suggested, and the aim was to search for human papillomavirus (HPV) in keratoacanthomas. METHODS From 21 immunosuppressed organ transplant recipients and 11 non-immunosuppressed patients, 72 fresh biopsies with diagnosis of keratoacanthomas were analyzed. For detection of cutaneous and genital HPV DNA, single-tube nested "hanging droplet" polymerase chain reaction (PCR) and another PCR (GP5+ and 6+) were used, respectively. RESULTS Among 21 immunosuppressed patients, 71% (15/21) harbored HPV DNA at least in one sample. Of the keratoacanthoma lesions, 55% (33/60) were HPV DNA positive. Fourteen samples from eight immunosuppressed patients contained HPV types 5, 9, 10, 14, 19, 20, 21, 38, 49, 80, putative HPV types as HPVvs20-4, HPVvs75, and HPVvs92 and FA16.1, FA23.2, FA37, FA75, and FA81. Among 11 non-immunosuppressed patients, 36% (4/11) harbored HPV DNA at least in one sample, and 33% (4/12) of their keratoacanthomas were HPV DNA positive. In total, HPV DNA was detected in 51% (37/72) of the keratoacanthomas. CONCLUSIONS By the use of PCR, cutaneous HPV DNA was detected in 51% (37/72) of the keratoacanthomas. No predominating HPV type or genital HPV type was identified. The role of HPV in keratoacanthomas remains thus elusive.
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Affiliation(s)
- Ola Forslund
- Department of Medical Microbiology, Malmö University Hospital, Lund University, SE-20502 Malmo, Sweden.
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11
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Pattee SF, Silvis NG. Keratoacanthoma developing in sites of previous trauma: a report of two cases and review of the literature. J Am Acad Dermatol 2003; 48:S35-8. [PMID: 12582383 DOI: 10.1067/mjd.2003.114] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Keratoacanthoma is a common benign squamous neoplasm that only rarely progresses to metastatic carcinoma. The cause of keratoacanthoma is unclear; however, suspected causes include ultraviolet light, genetic factors, immunosuppression, chemical carcinogens, viruses, and trauma. Keratoacanthomas have been reported only rarely to arise in sites of previous trauma. We report 2 cases of keratoacanthomas arising shortly after episodes of cutaneous trauma and provide a review of the literature of similar cases previously reported. It is likely that an interaction exists between a variety of factors in the development of keratoacanthomas; however, it appears that a predilection exists for these lesions to arise in trauma sites.
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Affiliation(s)
- Sean F Pattee
- Section of Dermatology, University of Arizona College of Medicine, Tucson, AZ 85724, USA
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12
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Haas N, Schadendorf D, Henz BM, Fuchs PG. Nine-year follow-up of a case of Grzybowski type multiple keratoacanthomas and failure to demonstrate human papillomavirus. Br J Dermatol 2002; 147:793-6. [PMID: 12366433 DOI: 10.1046/j.1365-2133.2002.04925.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We describe a patient with a 9-year history of generalized eruptive keratoacanthoma (KA) of the Grzybowski type whose multiple skin lesions showed steady progression, resulting in a sclerotic, mask-like facial expression and ectropion. Eleven tumour biopsies representing lesions of different stages and localizations (erupting and regressing KAs, biopsies from non-involved light-protected and light-exposed skin, dermatosclerosis and squamous cell carcinomas) were analysed for human papillomavirus (HPV) sequences using a polymerase chain reaction approach capable of detecting the majority of all presently known HPV genotypes. None of the biopsy specimens proved to be HPV-positive, although HPV was detected in weakly and heavily affected control specimens by the method applied. These findings suggest an HPV-independent aetiology of this rare type of multiple KA.
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Affiliation(s)
- N Haas
- Department of Dermatology, Medical Faculty (Charité), Humboldt University Berlin, Schumannstrasse 20/21, Germany.
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13
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Consigli JE, González ME, Morsino R, Guidi A, Chappuis JM, Papa M, Maldonado S. Generalized eruptive keratoacanthoma (Grzybowski variant). Br J Dermatol 2000; 142:800-3. [PMID: 10792236 DOI: 10.1046/j.1365-2133.2000.03430.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We describe a patient with generalized eruptive keratoacanthoma (KA) of Grzybowski showing the characteristic features of this extremely rare condition. Since the first description by Grzybowski in 1950, only 28 additional cases (including the present one) have been reported. This variety of KA most commonly affects patients during the fifth to seventh decade of life and appears as a generalized eruption of hundreds to thousands of follicular papules. The small pruriginous papules often have a keratotic centre and show microscopic features of KA. Marked facial involvement is characteristic and can lead to masked facies with ectropion, as in our patient. The course of the disease is chronic and the response to therapy is poor.
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Affiliation(s)
- J E Consigli
- Department of Dermatology, Córdoba Hospital, Córdoba, Argentina.
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15
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Karakourtis MH, Dierks EJ. Selected Cutaneous Tumors of the Oral and Maxillofacial Region. Oral Maxillofac Surg Clin North Am 1997. [DOI: 10.1016/s1042-3699(20)30373-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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Schellini SA, Marques ME, Milanezi MF, Bacchi CE. Conjunctival keratoacanthoma. ACTA OPHTHALMOLOGICA SCANDINAVICA 1997; 75:335-7. [PMID: 9253992 DOI: 10.1111/j.1600-0420.1997.tb00791.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Keratoacanthoma is a rapidly growing skin neoplasia that may stabilize or regress spontaneously. We describe here a case of conjunctival keratoacanthoma and comment about the clinical signs and symptoms and pathological findings.
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Affiliation(s)
- S A Schellini
- Departamentos de Oftalmologia, Faculdade de Medicina de Botucatu, UNESP, São Paulo, Brazil
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17
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Strumia R, Roveggio C, Rotola A, Monini P, Cassai E. Keratoacanthomas: human papillomavirus and herpes simplex virus associated? J Eur Acad Dermatol Venereol 1997. [DOI: 10.1111/j.1468-3083.1997.tb00201.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Hsi ED, Svoboda-Newman SM, Stern RA, Nickoloff BJ, Frank TS. Detection of human papillomavirus DNA in keratoacanthomas by polymerase chain reaction. Am J Dermatopathol 1997; 19:10-5. [PMID: 9056648 DOI: 10.1097/00000372-199702000-00003] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The etiology of keratoacanthomas is unknown, but human papillomavirus (HPV) has been suspected to be involved in the pathogenesis of this lesion because koilocytic changes may be observed and because HPV has been found in cutaneous squamous-cell carcinomas and premalignant keratoses in immunosuppressed patients. We analyzed DNA extracted from 39 keratoacanthomas from 22 "at-risk" patients (nine patients undergoing UV light and/or anthralin therapy for psoriasis, 10 solid organ transplant recipients, one patient with xeroderma pigmentosa, one patient with acquired immunodeficiency syndrome, and one patient undergoing therapy for non-Hodgkin's lymphoma) for the presence of HPV. The results were compared with analyses of DNA extracted from 30 keratoacanthomas from 28 patients at no known increased risk for these lesions. Using polymerase chain reaction (PCR) primers designed to detect multiple HPV types (including 6, 11, 16, 18, 31, and 33), HPV was detected in seven keratoacanthomas from six of the at-risk patients and in eight sporadic keratoacanthomas from eight patients without risk factors. HPV was also present in one of 26 nonlesional skin controls. Statistical analysis showed a significant difference in the prevalence of HPV DNA sequences found in keratoacanthomas compared to normal control skin (p = 0.038). The presence of virus by PCR could not be predicted by histologic evaluation. Sequence analysis showed the presence of HPV types 11, 13, 24, 33, and 57. Although these results confirm the frequent presence of HPV in keratoacanthomas, the role of this virus in the etiology and pathogenesis of these lesions remains to be elucidated.
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Affiliation(s)
- E D Hsi
- Department of Pathology, University of Michigan Hospitals, Ann Arbor, Michigan, USA
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19
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Waring AJ, Takata M, Rehman I, Rees JL. Loss of heterozygosity analysis of keratoacanthoma reveals multiple differences from cutaneous squamous cell carcinoma. Br J Cancer 1996; 73:649-53. [PMID: 8605102 PMCID: PMC2074334 DOI: 10.1038/bjc.1996.113] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Keratoacanthomas (KAs) resemble squamous cell carcinomas (SCCs) except that, unlike SCCs, after a period of rapid growth over a few months they involute completely. The basis of their regressing natural history is not known. We have examined keratoacanthomas and another benign cutaneous tumour, the basal cell papilloma (BCP), for loss of heterozygosity (LOH) at a number of loci that are frequently lost in SCCs and other skin tumours. The frequency of LOH for both KAs and BCPs was low, with only isolated losses identified at 9p, 9q and 10q in KAs [fractional allelic loss (FAL) was 1.3%], and at 9p and 17p in BCPs (FAL was 0.4%). This contrasts with previous work showing a FAL of 32% in SCC and 46% in actinic keratoses. The results show a clear difference between KA and SCC and do not support the hypothesis that KAs are SCCs that regress as a result of external (host) influences but rather suggest that KAs and SCCs are different de novo. LOH around the locus implicated in the multiple self-healing epitheliomata of Ferguson-Smith (9q22-q31) was shown in only 1 of 11 KAs.
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Affiliation(s)
- A J Waring
- Department of Dermatology, University of Newcastle upon Tyne, UK
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20
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Lu S, Syrjänen SL, Havu VK, Syrjänen S. Known HPV types have no association with keratoacanthomas. Arch Dermatol Res 1996; 288:129-32. [PMID: 8967780 DOI: 10.1007/bf02505821] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Certain HPV types have been linked to the genesis and development of premalignant and malignant skin diseases. There have been several contradictory reports on the role of HPV infections in the development of keratoacanthomas (KAs). To further study the involvement of HPVs in the aetiology of KAs, we investigated paraffin-embedded specimens of 80 biopsies of KAs for the presence of HPV 1, 2, 3, 4, 5, 7, 26, 37, 38, 47 and 59 DNA by in situ hybridization (ISH) with biotinylated probes under high stringency conditions (Tm-10 degrees C). Every fourth biopsy specimens was also examined by polymerase chain reaction (PCR) with consensus primers targeting the HPV E1 and L1 regions. The positive cases were further studied by direct DNA sequencing. All specimens proved to be negative for all HPV DNAs studied by ISH. Three out of 20 cases produced in positive PCR amplifications when consensus primers targeting the L1 region were used. However, the same samples remained negative with general primers targeting the E1 region. The DNA sequence analysis of the PCR-positive products showed a 76% homology with HPV type 17. Our results suggest that the known HPV types are unlikely to have any role in the aetiology of KAs.
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Affiliation(s)
- S Lu
- MediCity Research Laboratory, Faculty of Medicine, University of Turku, Finland
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21
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Abstract
We report a case of Grzybowski's generalized eruptive keratoacanthoma which demonstrates the characteristic features of this rare condition. The recurring nature of the eruption each summer supports the suggestion that UV irradiation may act as a precipitating factor in eruptive keratoacanthoma.
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Affiliation(s)
- G M Kavanagh
- University Department of Dermatology, Royal Infirmary, Edinburgh, UK
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22
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Abstract
The keratoacanthoma is a common cutaneous neoplasm that most often occurs on sun-exposed sites in light-skinned persons of middle age or older. It is considered the prototype of cutaneous pseudo-malignancies because it is a rapidly growing tumor with a histologic pattern resembling squamous cell carcinoma. It may be best viewed as an aborted malignancy that only rarely progresses into an invasive squamous cell carcinoma. It is most likely derived from hair follicle cells. The common type of keratoacanthoma and its many variants are discussed with emphasis on clinical and histologic features, biologic behavior, and response to therapy.
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23
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Abstract
A patient with generalized eruptive keratoacanthoma of Grzybowski is described. Our findings, along with those of the 21 reported cases from the world literature, are summarized. This rare variant of keratoacanthoma most commonly affects patients in the fifth to seventh decades of life and appears as a generalized eruption of hundreds to thousands of follicular papules. These small papules often have a keratotic center and demonstrate the microscopic features of keratoacanthoma. Marked facial involvement is characteristic and can lead to masked facies with ectropion. Severe pruritus, mucosal lesions, and koebnerization are features of the disease. The course is chronic and the response to therapy is poor, although a few patients have improved with the use of systemic retinoids.
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Affiliation(s)
- P W Jaber
- Department of Dermatology, University of Virginia School of Medicine
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24
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Premoli-de-Percoco G, Galindo I, Ramirez JL, Perrone M, Rivera H. Detection of human papillomavirus-related oral verruca vulgaris among Venezuelans. J Oral Pathol Med 1993; 22:113-6. [PMID: 7683721 DOI: 10.1111/j.1600-0714.1993.tb01040.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A sensitive in situ hybridization test under low stringency conditions (LCS) with a set of digoxigenin-labeled human papillomavirus mixed probes (D-L HPV MP) revealed a positive reaction in 8 of 10 cases of oral verruca vulgaris (OVV). Ages ranged from 5 to 37 years with a mean of 14.5 years. 50% of all cases were located intraorally on the hard palate, followed in frequency by the commissures. These preliminary findings provide evidence of the role of HPV in OVV from a sample of the Venezuelan population. We show that in situ hybridization conducted under LSC is useful in HPV detection (regardless of the type) and the digoxigenin-labeling system is a rapid, relatively easy and specific method. In addition, this technique permits the retrospective evaluation of routinely processed material, thus widening the investigative spectrum for HPV.
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Affiliation(s)
- G Premoli-de-Percoco
- Instituto de Investigaciones Raul Vicentelli, Facultad de Odontologia, Universidad Central de Venezuela, Caracas
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25
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Abstract
Nonmelanoma skin cancer is the leading cause of cancer in the United States. Cutaneous squamous cell carcinoma is second only to basal cell carcinoma in prevalence and its incidence is increasing. The biology of squamous cell carcinoma is reviewed under the broad areas of etiology, immunobiology, biochemistry, metastatic potential, and therapy, with emphasis on prevention, diagnosis, and management.
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Affiliation(s)
- R E Kwa
- Division of Dermatology, University of California, Los Angeles 90024
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26
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Abstract
Human papillomaviruses have long been identified as the cause of common warts and condylomata acuminata. Evidence is now accumulating that human papillomaviruses may be involved in not only benign, but also in malignant neoplasms. They might also be significant in the malignant transformation of cutaneous neoplasms. This review examines the oncogenic potential of human papillomaviruses when they are found in carcinomas in various anatomic areas, including the skin.
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Affiliation(s)
- M B Quan
- University of California, Los Angeles Division of Dermatology 90024
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27
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Melton JL, Rasmussen JE. Clinical Manifestations of Human Papillomavirus Infection in Nongenital Sites. Dermatol Clin 1991. [DOI: 10.1016/s0733-8635(18)30412-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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28
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Moy RL, Quan MB. The presence of human papillomavirus type 16 in squamous cell carcinoma of the proximal finger and reconstruction with a bilobed transposition flap. THE JOURNAL OF DERMATOLOGIC SURGERY AND ONCOLOGY 1991; 17:171-5. [PMID: 1848248 DOI: 10.1111/j.1524-4725.1991.tb01611.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
In a 71 year old white female a clinically diagnosed keratoacanthoma on the dorsum of the right third finger was removed using Mohs micrographic surgery and histologically diagnosed as a squamous cell carcinoma. It was shown by dot blot hybridization to have HPV type 16 DNA in the tumor. The wound was reconstructed with a bilobed transposition flap.
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Affiliation(s)
- R L Moy
- UCLA Division of Dermatology 90024
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29
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Pseudocanceroses. Dermatology 1991. [DOI: 10.1007/978-3-662-00181-3_56] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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30
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Guerin-Reverchon I, Chardonnet Y, Chignol MC, Thivolet J. Study of stringency conditions for human papillomavirus DNA detection on cell lines, frozen and paraffin-embedded tissue sections by in situ hybridization with biotinylated probes. HISTOCHEMISTRY 1990; 93:637-43. [PMID: 2158491 DOI: 10.1007/bf00272207] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
In situ hybridization was mainly used for typing human papillomavirus (HPV) in paraffin-embedded or frozen sections under stringent conditions (SC). We tested 5 different conditions of stringency with biotinylated HPV 1, 2, 16 and 18 probes on 3 cell lines (Sihà and CaSki with HPV16, HeLa with HPV18) by varying the concentration of formamide in the hybridization mixture and washings in order to determine the stringency conditions to be used to assess the presence of HPV and its typing: A-low stringency, hybridization at 35 degrees C below the melting temperature of DNA (Tm-35 degrees C) and washings without formamide; B-low stringency, hybridization and washings at Tm-35 degrees C; C-medium stringency, hybridization at Tm-35 degrees C and washings at Tm-12 degrees C; D-high stringency, hybridization at Tm-12 degrees C and washing without formamide; E-very high stringency, hybridization and washings at -12 degrees C. This study showed that HPV typing required a high stringency. On the contrary, under non stringent conditions (NSC), each cell line was positive with the heterologous probes. When 3 to 5 stringency conditions were assayed on 4 frozen samples, similar results were obtained. Typing required high stringency conditions whereas NSC allowed HPV detection. Furthermore, this study demonstrated the specificity of the reaction in lesions positive with more than one type. Stringent (Tm-12 degrees C) and non stringent (Tm-35 degrees C) conditions of hybridization were further applied to 57 biopsy sections (17 frozen and 40 paraffin-embedded specimens) from typical wart lesions and lesions suspected of HPV.(ABSTRACT TRUNCATED AT 250 WORDS)
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31
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Guérin-Reverchon I, Chardonnet Y, Chignol MC, Thivolet J. A comparison of methods for the detection of human papillomavirus DNA by in situ hybridization with biotinylated probes on human carcinoma cell lines. Application to wart sections. J Immunol Methods 1989; 123:167-76. [PMID: 2553818 DOI: 10.1016/0022-1759(89)90220-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We compared nine different techniques for the detection of biotinylated DNA-DNA HPV hybrids on HeLa cells with 10-50 copies of HPV 18 DNA per cell. CaSki cells with 600 copies of HPV 16 DNA per cell and tissue sections from frozen or paraffin-embedded biopsy specimens. The cell samples were either cell deposits or cytocentrifuged or cultured slides. In most cases, the samples (cell deposits and tissue sections) were denatured with hybridization mixture prepared under stringent conditions (Tm = -17 degrees C) containing biotinylated DNA probes (cloned HPV types 1, 2, 6, 11, 16 and 18), at 90 degrees C for 10 min. In other cases (cytocentrifuged or cultured cells), the denaturation was performed by HCl hydrolysis and mild heating at 50 degrees C; the probes were denatured separately by heating. All the samples were further incubated overnight at 37 degrees C. For HPV DNA detection, three amplification levels were used on cell deposits. Only the techniques involving a three-step reaction (a rabbit anti-biotin antibody - a biotinylated goat anti-rabbit antibody - a complex of streptavidin-alkaline phosphatase or streptavidin-gold or streptavidin-fluorescein) gave satisfactory results, on both cell lines. With the one step reaction (an avidin-horseradish peroxidase, or streptavidin-alkaline phosphatase or streptavidin-fluorescein complex), no labeling of HeLa cells was observed with any of the HPV probes, including HPV 18. The techniques involving four steps (avidin or streptavidin - anti-avidin goat antibody or anti-streptavidin rabbit antibody - a biotinylated anti-goat (or anti-rabbit) antibody - a complex of avidin-biotin-peroxidase or streptavidin-biotin-alkaline phosphatase or streptavidin-biotin-horseradish peroxidase) resulted in high background on both cell lines. For the reproducible detection of low copy number of HPV DNA (less than 50 copies) such as occur in HeLa cells our data suggested that the three-step technique with the streptavidin-alkaline phosphatase complex was the method of choice. The most intense labeling was always obtained with cell deposits and the technique was successfully applied to frozen and paraffin-embedded tissue sections from typical warts.
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Affiliation(s)
- I Guérin-Reverchon
- INSERM U209, CNRS UA 601, Clinique Dermatologique, Hôpital E. Herriot, Lyon, France
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Scully C, Cox MF, Prime SS, Maitland NJ. Papillomaviruses: the current status in relation to oral disease. ORAL SURGERY, ORAL MEDICINE, AND ORAL PATHOLOGY 1988; 65:526-32. [PMID: 2836772 DOI: 10.1016/0030-4220(88)90134-x] [Citation(s) in RCA: 68] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Human papillomaviruses of different types are associated with a variety of benign oral lesions and may be associated with some premalignant and malignant oral lesions. However, since it is now clear that a variant of human papillomavirus 16 is harbored by normal oral mucosa, as well as by premalignant and malignant lesions, such associations may not necessarily always be causal. The rapid progress of recent research in this field is reviewed, with particular reference to oral disease, and the current status is discussed.
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Affiliation(s)
- C Scully
- University Department of Oral Medicine, Surgery, and Pathology, Bristol Dental Hospital and School, England
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