Imaging features for the evaluation of skin and nail infections.

Clinical manifestations of dermatological and musculoskeletal conditions can sometimes overlap, leading to confusion in diagnosis. Patients with nail and skin infections may undergo imaging examinations with suspicions of muscle, tendon, or joint injuries. Dermatological infections often involve soft tissues and musculoskeletal structures, and their etiology can range from fungi, bacteria, viruses, to protozoa. Relying solely on physical examination may not be sufficient for accurate diagnosis and treatment planning, necessitating the use of complementary imaging exams. The objective of this paper is to present and discuss imaging findings of the main infectious conditions affecting the nail apparatus and skin. The paper also highlights the importance of imaging in clarifying diagnostic uncertainties and guiding appropriate treatment for dermatological conditions.

Monogenic etiologies of persistent human papillomavirus infections: A comprehensive systematic review.

PURPOSE: Persistent human papillomavirus infection (PHPVI) causes cutaneous, anogenital, and mucosal warts. Cutaneous warts include common warts, Treeman syndrome, and epidermodysplasia verruciformis, among others. Although more reports of monogenic predisposition to PHPVI have been published with the development of genomic technologies, genetic testing is rarely incorporated into clinical assessments. To encourage broader molecular testing, we compiled a list of the various monogenic etiologies of PHPVI. METHODS: We conducted a systematic literature review to determine the genetic, immunological, and clinical characteristics of patients with PHPVI. RESULTS: The inclusion criteria were met by 261 of 40,687 articles. In 842 patients, 83 PHPVI-associated genes were identified, including 42, 6, and 35 genes with strong, moderate, and weak evidence for causality, respectively. Autosomal recessive inheritance predominated (69%). PHPVI onset age was 10.8 ± 8.6 years, with an interquartile range of 5 to 14 years. GATA2,IL2RG,DOCK8, CXCR4, TMC6, TMC8, and CIB1 are the most frequently reported PHPVI-associated genes with strong causality. Most genes (74 out of 83) belong to a catalog of 485 inborn errors of immunity-related genes, and 40 genes (54%) are represented in the nonsyndromic and syndromic combined immunodeficiency categories. CONCLUSION: PHPVI has at least 83 monogenic etiologies and a genetic diagnosis is essential for effective management.

Design, Synthesis, and Evaluation of Peptides Derived from L1 Protein Against Bovine Papillomavirus-1/2 Identified Along Mexico's Cattle Export Route.

Introduction: Bovine papillomatosis affects animal health and represents one of the greatest economic losses in the livestock sector. New control and prevention methods to protect the livestock industry from this disease are necessary. The aim of this study was to evaluate a candidate peptide for antibody production against bovine papillomavirus (BPV). Material and Methods: A total of 64 cattle underwent wart excision among 5,485 cattle distributed over 2 to 4 farms per state and 12 farms in total in the four Mexican states of Tabasco, Chiapas, Veracruz, and Nuevo León. The prevalence of bovine papillomatosis per farm was calculated by wart visualisation. The warts were genotyped by PCR and sequenced, then a phylogenetic tree was built using MEGA X software. A synthetic peptide was designed in the ABCpred, Bepipred 2.0, Bepipred IDBT, Bepitope, LBtope, and MHC II predictor online server software's based on the C-terminal region of the L1 protein. Mice antibody production was induced by subcutaneous immunisation with 50 µg of synthetic peptide and evaluated by indirect ELISA. Results: The prevalence of BPV was higher in Tabasco, Chiapas, and Veracruz. Bovine papillomaviruses 1 and 2 were found in all representative samples. A phylogenetic tree showed that Mexican sequences were located in exclusive clades yet were highly related to international ones. The peptide immunisation induced antibody titres of 1 : 10,000/1 : 1,000,000 against synthetic peptide and whole wart lysate (WWL), respectively. Conclusion: Co-infections of BPV-1 and -2 were found in all four states. Immunisation of BALB/C mice with BPV-1/2-derived synthetic peptide based on the C-terminal region of the major viral capsid protein L1 induced the production of specific antibodies able to recognise BPV-1/2 viral particles from bovine WWL.

Resección de tumor de Buschke-Löwenstein en una mujer embarazada: reporte de un caso y revisión de la bibliografía / Buschke-Löwenstein tumor resection in a pregnant women: A case report and literature review

Resumen INTRODUCCIÓN: El tumor de Buschke-Löwenstein se asocia con el virus del papiloma humano por lo que se considera una infección de transmisión sexual. Se caracteriza por un condiloma gigante, verrugoso, exofítico, con forma de coliflor, de crecimiento lento, pero que durante el embarazo puede crecer rápidamente y formar condilomas solitarios que afectan las estructuras vecinas. CASO CLÍNICO: Paciente de 18 años, primigesta, con 35 semanas de embarazo, sin antecedentes de importancia para el padecimiento actual. Cuatro meses previos inició con verrugas en el perineo, con aumento acelerado de su tamaño en los últimos 30 días, asociado con dolor intenso a la movilización, secreción fétida, eritema e irritación interglútea y formación de un tumor friable con tendencia al sangrado y áreas de necrosis. CONCLUSIONES: El tumor de Buschke-Löwenstein es una alteración poco frecuente causada por el virus del papiloma humano, que puede tener crecimiento acelerado por el estímulo hormonal, propio del estado gestacional. El tratamiento de primera línea es la resección quirúrgica. El seguimiento de las pacientes debe ser estrecho, debido al alto índice de recidiva.

Abstract BACKGROUND: Buschke-Löwenstein tumor is associatted with the human papillomavirus (HPV), which is considered a sexually transmitted infection, characterized by the presence of a giant wart, exophytic condyloma with the shape of a cauliflower, slow growth, but during pregnancy it can grow fast as a solitary condyloma, affecting other structures. This case provides a better understanding of an unusual pathology, which with surgical treatment was obtained aesthetic results and with adequate functionality of external genitalia. CLINICAL CASE 18-year-old female, primiparous with 35 weeks pregnant, with no significant history, 4 previous months begins with the presence of warts in the perineal region with accelerated increase in size in the last 30 days, associated with intense pain on mobilization, fetid discharge, and area oferythema and intergluteal irritation, friable tumor with a tendency to bleed with areas of necrosis. CONCLUSIONS: The Buschke-Löwenstein tumor is a rare pathology caused by HPV, which can present accelerated growth due to the hormonal stimulus of the gestational state, this tumor does not resolve spontaneously, so the surgical approach is considered top of the line. The follow-up of these patients must be close due to the high rate of recurrence.

Epithelioma cuniculatum of the sole of the foot mimicking an infection.

Epithelioma cuniculatum is characterized as a slow growing lesion on the sole of the foot. A diagnosis is usually delayed by a low clinical suspicion and misdirection due to its similarity to an infection. This tumor rarely metastasize but a local invasion of adjacent soft tissues is common, requiring ample surgical resection or even amputation in advanced cases. We report a case a 76-year-old patient with a 5-year-old lesion on the sole of the foot, which was originally treated as a wart without improvement while the lesion slowly evolved. The patient was referred to our center with a diagnosis of chronic osteomyelitis. An excisional biopsy revealed an invasive keratinizing squamous carcinoma. In this advanced phase of the disease the only possible treatment was a Syme amputation.

El epitelioma cuniculatum se caracteriza por una lesión de crecimiento lento en la planta del pie cuyo diagnóstico suele retrasarse por la baja sospecha clínica y por su similitud con una infección. Este tumor raramente metastatiza, pero es común que produzca una invasión local a los tejidos blandos adyacentes, requiriendo una amplia resección quirúrgica o incluso una amputación en casos avanzados. Presentamos un caso de un paciente de 76 años con una lesión de 5 años de edad en la planta del pie, que originalmente fue tratada como una verruga plantar común sin mejoría, mientras que la lesión evolucionó lentamente. El paciente fue remitido a nuestro centro con un diagnóstico de osteomielitis crónica. Una biopsia excisional reveló un carcinoma escamoso queratinizante invasivo. En esta fase avanzada de la enfermedad el único tratamiento posible fue una amputación de Syme.

Epithelioma cuniculatum of the sole of the foot mimicking an infection / Epitelioma cuniculatum de la planta del pie simulando una infección

Abstract: Epithelioma cuniculatum is characterized as a slow growing lesion on the sole of the foot. A diagnosis is usually delayed by a low clinical suspicion and misdirection due to its similarity to an infection. This tumor rarely metastasize but a local invasion of adjacent soft tissues is common, requiring ample surgical resection or even amputation in advanced cases. We report a case a 76-year-old patient with a 5-year-old lesion on the sole of the foot, which was originally treated as a wart without improvement while the lesion slowly evolved. The patient was referred to our center with a diagnosis of chronic osteomyelitis. An excisional biopsy revealed an invasive keratinizing squamous carcinoma. In this advanced phase of the disease the only possible treatment was a Syme amputation.

Resumen: El epitelioma cuniculatum se caracteriza por una lesión de crecimiento lento en la planta del pie cuyo diagnóstico suele retrasarse por la baja sospecha clínica y por su similitud con una infección. Este tumor raramente metastatiza, pero es común que produzca una invasión local a los tejidos blandos adyacentes, requiriendo una amplia resección quirúrgica o incluso una amputación en casos avanzados. Presentamos un caso de un paciente de 76 años con una lesión de 5 años de edad en la planta del pie, que originalmente fue tratada como una verruga plantar común sin mejoría, mientras que la lesión evolucionó lentamente. El paciente fue remitido a nuestro centro con un diagnóstico de osteomielitis crónica. Una biopsia excisional reveló un carcinoma escamoso queratinizante invasivo. En esta fase avanzada de la enfermedad el único tratamiento posible fue una amputación de Syme.

Revisiting Bartonella bacilliformis MLST.

All the studies published including Bartonella bacilliformis MLST data, as well as all B. bacilliformis genomes present in GenBank were analyzed. Overall 64 isolates and their geographical distribution were analyzed, and 14 different MLST patterns were observed. The results highlight the need for expanding the MLST studies and adding a higher number of isolates from all endemic areas.

Tratamento de verrugas virais com bleomicina intralesional / Treatment of viral warts with intralesional bleomycin

A verruga viral representa uma das dermatoses mais prevalentes. O quadro clínico varia de lesão única com cura espontânea até múltiplas lesões recalcitrantes. O sulfato de bleomicina é uma droga de ação citotóxica, aprovada para o tratamento quimioterápico de algumas malignidades. Há mais de 45 anos existem trabalhos demonstrando sua utilidade na dermatologia, em especial na terapia intralesional para verrugas virais, que constitui excelente opção para as lesões em topografias de difícil manejo e para os casos não responsivos a outras abordagens.

Viral warts are one of the most prevalent dermatoses. The clinical picture varies from a single lesion with spontaneous cure to multiple recalcitrant lesions. Bleomycin sulfate is a cytotoxic action drug approved for the chemotherapeutic treatment of some malignancies. There are a number of studies that have been carried out during the last 45 years demonstrating its usefulness in dermatology, especially in intralesional therapy for viral warts, meaning it is an excellent option for lesions in difficult-to-handle topographies and for cases that do not respond to other approaches.

Two Landmark Studies Published in 1976/1977 Paved the Way for the Recognition of Human Papillomavirus as the Major Cause of the Global Cancer Burden.

Two groundbreaking reports were published in Acta Cytologica at the transition of 1976 to 1977. One appeared in the last issue of 1976 [Meisels and Fortin: Acta Cytol 1976;20:505-509] and the other in the first issue of 1977 [Purola and Savia: Acta Cytol 1977;21:26-31]. Today, 40 years later, it is not an overstatement to conclude that these are the two most influential studies ever published in this journal. Two reports with a similar content being published so close together (in the same journal) raised the question "Which of the two reports was truly submitted first?" In this commentary, this enigma is clarified beyond reasonable doubt, based on the well-considered testimonial of Prof. Leopold G. Koss, the reviewer of one of the two papers. To fully appreciate the significance of the novel discovery made in these two reports, it is essential to align them in the right context, both retrospectively and prospectively. This commentary will assist the reader by summarizing the existing knowledge on human papillomavirus (HPV) before these two milestone papers appeared, and describe the incredibly rapid progress that they evoked during the subsequent decades, which made HPV the single most important human tumor virus. As the final proof of virus-cancer causality, prophylactic HPV vaccines have been effective in preventing (a) virus transmission and HPV infection, (b) benign HPV-induced tumors (genital warts), and (c) cervical intraepithelial neoplasia (CIN). Formal evidence of the prevention of cervical cancer by these HPV vaccines still awaits confirmation, and the same applies to the eventual prevention of human cancers at other anatomic sites, part of the global burden of oncogenic HPVs.

Sonography of Dermatologic Emergencies.

Dermatologic conditions may be the subjects of potential emergency consultations, and the knowledge of their sonographic appearance can facilitate an early diagnosis and management. In this pictorial essay, the sonographic dermatologic anatomy, technique, and conditions that can be supported by a prompt sonographic diagnosis are reviewed. The sonographic signs that may help diagnose these entities are discussed with a practical approach.

Asociaciones de marcadores moleculares con la resistencia a enfermedades, caracteres morfológicos y agronómicos en familias diploides de papa (Solanum tuberosum L.) / Associations of molecular markers with diseases resistance, morphological and agronomic characters in potato diploid families (Solanum tuberosum L.)

Quince familias de papa (824 genotipos) provenientes de cruzas inter-específicas entre especies de Solanum stenotomum, S. goniocalyx y S. phureja fueron genotipadas, con el objetivo de asociar seis marcadores moleculares (GP94, HC, Nl25, Gro 1-4, RYSC3 y CP60) con genes mayores de resistencia para tizón tardío (Phytophthora infestans), verruga (Synchytrium endobioticum), nematodo - quiste (Globodera pallida y G. rostochiensis) y virus PVY y PVX. Los resultados mostraron que cinco de los marcadores aplicados fueron polimórficos y amplificaron en más del 80% de las familias. El marcador RYSC3 que co-localiza con el gen Ry adg no amplificó en ninguna de las familias evaluadas. La familia 8 amplificó la banda para tres marcadores (CP60, GP94 y NL25) en la totalidad de sus clones. La prueba de χ² se utilizó para determinar el ajuste de las proporciones de segregación de cada familia para cada marcador y genotipar los progenitores. Nueve caracteres agronómicos y morfológicos fueron evaluados en la cosecha. Mediante agrupamiento cluster fueron seleccionados 107 clones con resistencia a PVX, P. infestans, G. rostochiensis y S. endobioticum, alto rendimiento y volumen de tubérculos, elevado número de tubérculos y ojos superficiales. Sobre la base de estos resultados, aspectos prácticos para la aplicación eficiente de la selección asistida por marcadores moleculares son discutidos en este artículo.

Fefteen families of potato (824 genotypes) originated from inter-specific crosses among Solanum stenotomum, S. goniocalyx and S. phureja were genotyped in order to associate six molecular markers (GP94, HC, Nl25, Gro 1-4, RYSC3 y CP60). These molecular markers are linked to major genes for resistance to late blight (Phytophthora infestans), wart (Synchytrium endobioticum), root cyst nematode (Globodera pallida and G. rostochiensis) and viruses PVY and PVX. Results showed that five of six molecular markers were polymorphic and primers amplified in more than 80 % of the families. Molecular marker RYSC3 that is linked to Rya dg gene did not amplify in any family. All individuals in Family 8 scored positive for three markers (CP60, GP94, and NL25). χ² test was used to determine the significance of the segregation ratios of each marker in every single family; so to the possible genotype of its parents was inferred. Nine morphological and agronomical characters were assessed during the harvest. Cluster analysis classified and selected 107 genotypes by putative resistance to PVX, P. infestans, G. rostochiensis and S. endobioticum, high yield, tuber volume and tuber number and shallow eyes. According to our results, practical aspects of efficient use of marker assisted selection in potato are discussed in this paper.

Tratamiento de las verrugas genitales: una actualización / Genital wart treatment: an update

La infección por el Virus del Papiloma Humano es una afección altamente prevalente a nivel mundial y una de sus consecuencias es la verruga genital externa o condiloma genital. El tratamiento de estas lesiones ha sido tradicionalmente difícil, debido a la alta recurrencia de las lesiones. Se revisan los aspectos más novedosos del tratamiento de las verrugas genitales. Las sinecatequinas y una nueva formulación de Imiquimod al 3,75% resaltan como las terapéuticas más novedosas, mientras que la terapia fotodinámica carece de evidencia científica adecuada como para recomendar su uso rutinario. Las vacunas profilácticas y terapéuticas parecen poseer un gran potencial pero aún se encuentran en fases iniciales de investigación. Es deseable estudios con un mayor número de pacientes y un seguimiento más prolongado, que permita una comparación directa de la efectividad entre las diferentes técnicas terapéuticas a corto y largo plazo.

Human Papillomavirus infection is a highly prevalent condition worldwide whose frequent consequence is the external genital wart or genital condyloma. The treatment for this condition has been traditionally difficult due to the recurrence of the lesions. The most innovative aspects of the treatment of genital wart, are reviewed. The sinecatechins and a new formulation of Imiquimod 3.75% stand out as the most innovative therapeutic, while photodynamic therapy lacks adequate scientific evidence to recommend its routine use. The prophylactic and therapeutic vaccines seem to have great potential but are still in early stages of research. Studies should be conducted with larger patient samples and longer follow-ups to allow comparison of the effectiveness among the different therapeutic techniques in the short and long term.

Verruga umbilical / Umbilical wart

Las verrugas vulgares son proliferaciones epiteliales benignas, causadas por la infección del virus papiloma humano. Suelen afectar a niños y adolescentes comprometiendo frecuentemente manos y rodillas. Existen múltiples tratamientos pero ninguno infalible, y si bien se preconiza la conducta expectante, existen casos en los que se debe realizar tratamiento. Presentamos el caso de un escolar de sexo masculino con verruga umbilical, una localización infrecuente, tratada exitosamente con electrocoagulación.

Common warts are benign epithelial growths caused by infection with human papillomavirus. They usually affect children and adolescents often compromising hands and knees. There are many treatments but none infallible, and while it is recommended an expectant behaviour, there are cases in which treatment should be performed. We report the case of a 12 year old white male with an umbilical wart, an unusual localization, treated successfully with electrocoagulation.

Prevalência de condiloma acuminado no município de Campo Grande - Mato Grosso do Sul, no período de 2006 a 2009 / Prevalence of genital warts in Campo Grande - Mato Grosso do Sul in the period 2006 to 2009

O presente estudo visa estimar a prevalência de lesões condilomatosas causadas pela infecção por papilomavírus humano (HPV), no município de CampoGrande - Mato Grosso do Sul, no período de 2006 a 2009. Foi um estudo transversal de prevalência, realizado através de levantamento de dados fornecidos pelo Sistema Nacional de Agravos Notificáveis (SINAN), do município de Campo Grande, no período de 2006 a 2009, após solicitação protocolada. Foram notificados 961 casos de lesões condilomatosas, havendo maior prevalência no sexo masculino; em 2008 houve o maior número de notificações. Em 2009 ocorreu o maior número de casos em pacientes menores de 10 anos. A grande maioria foi diagnosticada com menos de 3 meses de evolução. Foi observada elevação crescente da infecção ao longo do período estudado, com ênfase para os casos novos em crianças com menos de 10 anos, o que infere aumento da incidência em pacientes gestantes, repercutindo em um maior índice de transmissão vertical. Também é notório o salto observado no número de casos na transição entre a pré-adolescência e a adolescência, inferindo o início da atividade sexual precoce destas pacientes.

This study aims to estimate the prevalence of condyloma lesions caused by infection with human papillomavirus (HPV), in Campo Grande - Mato Grossodo Sul in the period 2006 to 2009. It was a cross-sectional study of prevalence conducted through a survey of data provided by the National Notifiable Diseases (SINAN) of Campo Grande in the period 2006 to 2009, after request filed. Were reported 961 cases of condyloma lesions, with prevalence amongmales; in 2008 was higher numbers of notifications. In 2009 occurred the greatest number of cases in patients younger than 10 years. The vast majority werediagnosed under 3 months. Was observed growing areas of infection throughout the period studied, with emphasis on new cases in children younger than 10years, which implies increased incidence in pregnant patients resulting in higher rate of vertical transmission, and is also notorious jump observed in the number of cases in the transition from pre-adolescence and adolescence, inferring the onset of early sexual activity of these patients.

Recidiva de lesões associadas ao HPV em pacientes HIV positivos após tratamento cirúrgico / Recurrence of HPV lesions after surgical treatment in HIV-positive patients

O HPV é a doença anal sexualmente transmissível mais diagnosticada em pacientes HIV positivos. Neste estudo investigamos a taxa de recidiva após tratamento cirúrgico do HPV em pacientes HIV positivos. Foi realizado um estudo retrospectivo em 74 pacientes que foram submetidos a tratamento cirúrgico de lesões remanescentes após tratamento clínico do HPV, no Hospital Heliópolis, São Paulo, Brasil, de julho de 2004 até junho de 2007. A maioria dos pacientes eram homens (91,9 por cento), idade variando de 22 a 57 anos (média de 36 anos). Carga viral variou de indetectável até 488.000 cópias/mm³, células T CD4 de 19 a 900 céls/mm³. Observamos neoplasia intraepitelial de alto grau em 12,2 por cento e recorrência das lesões em 58,1 por cento dos pacientes. A recorrência foi significantemente menor em pacientes com células T CD4 =200 cells/mm³ e carga viral indetectável.

HPV is the commonest anal disease in HIV-infected patients. In the present study we investigated the recurrence rates after surgical treatment of HPV in HIV-positive patients. A retrospective review was performed on 74 patients who underwent surgical intervention for medically intractable anal condyloma at Hospital Heliópolis, São Paulo, Brazil, from July 2004 to June 2007. The majority of the patients were male (91,9 percent), ranged in age from 22 to 57 years (mean 36 years). Viral load ranged from undetectable to 488.000 copies/mm³, T CD4 cells counts from 19 to 900 cells/mm³. We observed high grade anal squamous intraepithelial lesions in 12,2 percent and anal condyloma recurred in 58,1 percent. A significantly lower recurrence was observed in patients with T CD4 cells counts =200 cells/mm³ and viral load undetectable.

Condiloma acuminado - resposta terapêutica com imiquimode e cirurgia / Genital wart - therapeutic response with immiquimod and surgery

O condiloma acuminado é uma das manifestações do papilomavírus humano (HPV) na área genital. Relata-se o caso de uma paciente do sexo feminino, 27 anos com extensa lesão condilomatosa na região vulvar. O tratamento foi realizado com exérese cirúrgica das lesões maiores, seguido da aplicação de imiquimode nas lesões menores e recidivas, com resolução clínica completa em 8 semanas. Foram abordadas as diferentes formas de tratamento com enfoque na terapêutica com imiquimode.

Condylomata acuminata is one of the genital manifestations of the Human papillomavírus (HPV) infection in the genital area. This is a case report of a 27 years-old female patient with extensive genital warts in the vulvar. The treatment was performed with surgical ressection of the biggest warts and local application of immiquimod in the others lesions and relapses. The complete clinical resolution was observed in 8 weeks. We will review the different forms of treatment emphasing immiquimod treatment.

Can established cultured papilloma cells harbor bovine papillomavirus?

Papillomaviruses have been reported to be very difficult to grow in cell culture. Also, there are no descriptions of cell cultures from lesions of bovine cutaneous papillomatosis, with identification of different bovine papilloma virus (BPV) DNA sequences. In the present report, we describe primary cell cultures from samples of cutaneous lesions (warts). We investigated the simultaneous presence of different BPV DNA sequences, comparing the original lesion to different passages of the cell cultures and to peripheral blood. BPV 1, 2 and 4 DNA sequences were found in lesion samples, and respective cell cultures and peripheral blood, supporting our previous hypothesis of the possible activity of these sequences in different samples and now also showing how they can be maintained in different passages of cell cultures.

Papilomavirose humana em genital, parte I / Genital human papilomavirosis, part I

Nas últimas décadas, algumas doenças têm adquirido proporções epidêmicas mundialmente. Dentre essas pandemias, pode-se destacar a infecção genital pelo papilomavírus humano (HPV). A infecção pelo HPV geralmente é assintomática e, na maioria dos casos, é transitória, já queo sistema imunológico pode ser capaz de combater o processo infeccioso, resolvendo-o ou tornando-o inativo. Vários tipos do HPV são causadoresde lesões genitais, manifestando-se, por exemplo, como condiloma acuminado. Algumas lesões genitais podem associar-se à infecçãopersistente e ao desenvolvimento de neoplasias intraepiteliais e até de câncer, ao longo de anos. Há muito tempo procura-se uma terapia que sejaconsiderada definitiva para as doenças causadas pelo HPV. Atualmente, as opções vão da ablação da lesão até a sua destruição com agentes químicos ou físicos. Pela frequência com que a infecção genital pelo HPV se manifesta na população, suas múltiplas aparências clínicas e o avançoem novas opções de abordagem para essas doenças são focos constantes de pesquisas. Diversas modalidades de tratamento já estão disponíveis para as lesões genitais pelo HPV, desde as citodestrutivas até a excisão cirúrgica. A utilização de produtos autoaplicáveis e em domicílio pode ter bons resultados para o paciente. A disponibilidade de vacinas contra HPV para a população pode ser o início de nova era na prevenção primária da infecção por HPV. Todavia, os milhões de casos clínicos de infecção por HPV, sobretudo os de condiloma acuminado, serão responsáveis por muitos anos de trabalho árduo para tratar as pessoas já acometidas. Este artigo, parte I, propõe-se a fazer uma ampla revisão sobre os principais aspectos da etiopatogenia, da clínica, do diagnóstico, do tratamento e da profilaxia de lesões genitais por HPV.

In recent decades, some diseases have reached epidemic proportions worldwide. Among these pandemics, genital infection by Human Papillomavirus (HPV) can be highlighted. HPV infection is usually asymptomatic and, in most cases, is transient, since the immune system may be able to fi ght the infectious process by either solving it or inactivating it. Several types of HPV cause genital lesions, and can be manifested as, for example, a condyloma acuminata. Some genital lesions can be associated to persistent infection and development of intraepithelial neoplasia and even cancer in time. For many years, there has been a demand for a defi nite therapy to treat HPV. Nowadays, the options range from the ablation of the lesion to its destruction with chemical or physical agents. Based on the frequency with which genital HPV infection manifests itself in the population, its many clinical aspects and the advances of new options to approach these diseases, it has become a continuous research focus. Several types of treatment are available forgenital HPV lesions, ranging from the cytodestructive treatments to those carried out by surgical excision. The use of self and domestic applicableproducts can present good results for the patient. The availability of HPV vaccines for the population may be the beginning of a new era in the primary prevention of HPV infection. However, the millions of cases of HPV infection, especially the condyloma acuminatum will be responsible for many years of hard work treating those already infected. This article, Part I, attempts to carry out a comprehensive review on the main pathogenic, clinical, diagnostic, treatment and prophylactic aspects of HPV genital lesions.