Squamous cell papilloma larynx

In addition to tobacco and alcohol abuse, certain viruses have been associated with squamous cell carcinoma SCC of the head and neck, causing alterations in DNA.

Virusul Papiloma - potenţială cauză în cazul neoplasmelor orofaringian și laringian

It has been demonstrated that the human papil­loma­virus HPV type 16, a subtype of the human pa­pil­loma­virus, is present squamous cell papilloma larynx the oropharyngeal carcinomas of non-smokers patients inclusive.

HPV-infected cells express cancer e hpv viral proteins encoded squamous cell papilloma larynx genes called E6 and E7, and can inactivate p53 protein and the retinoblastoma-type pro­tein RBP involved in the regulation of proliferation and cell death. Materials and method.

We present an immunohistochemical study conducted to identify significant tumour markers in tonsillar SCC. We present the squamous cell papilloma larynx significant correlations between squamous cell papilloma larynx presence of immunohistochemical markers and studied local re­cur­rence, lymph node recurrence and risk of a second can­cer in the aerodigestive upper tract. The de­mon­stration of HPV in tonsillar tumour tissue requires in situ hybridization or polymerase chain reaction PCR for the evidence of viral genome included into the host cell.

The practical implications of an etiologic role of HPV in head and neck cancer generally and in tonsillar SCC in particular remains in question and is in relate with prog­nosis, treatment and prevention.

Specificații

În afară de consumul de tutun şi abuzul de al­cool, anumite virusuri au fost asociate cu carcinomul cu celule scuamoase CCS al capului şi gâtului, cauzând al­te­rări la nivelul ADN-ului. Este dovedit că virusul papiloma uman HPVtipul 16, este prezent la nivelul carcinoamelor orofaringiene inclusiv în cazul nefumătorilor.

Celulele in­fec­ta­te cu HPV exprimă unele proteine virale codate de ge­ne­le denumite E6 şi E7 şi pot inactiva proteina p53 şi pro­tei­na de tip retinoblastom RBP implicate în reglarea pro­li­fe­ră­rii şi morţii celulare. Materiale şi metodă. Pre­zen­tăm un stu­diu imunohistochimic realizat cu scopul squamous cell papilloma larynx a identifica mar­keri tumorali semnificativi în CCS de amig­da­lă.

Pre­zen­tăm co­re­la­ţiile semnificative squamous cell papilloma larynx între prezenţa mar­ke­rilor imu­no­his­to­chimici şi recurenţa locală, recurenţa no­du­lilor limfatici şi ris­cul apariţiei unui al doilea cancer în trac­tul aerodigestiv su­pe­rior.

Punerea în evidenţă a HPV-ului în ţesutul tu­mo­ral amigdalian necesită hibridizare in situ şi reacţie de polimerizare în lanţ PCR pentru punerea squamous cell papilloma larynx evidenţă a genomului viral conţinut în celula-gazdă. Im­pli­caţiile practice ale unui rol etiologic al HPV-ului în squamous cell papilloma larynx de cap şi gât, în general, şi în CCS de amigdală, în par­ti­cu­lar, reprezintă un subiect în dezbatere, fiind în relaţie cu prog­nos­ticul, tratamentul şi prevenţia acestor tipuri de can­cere.

Cuvinte cheie carcinomul cu celule scuamoase de amigdală CCS HPV markeri tumorali Introduction The tonsillar squamous cell carcinoma SCC is becoming a public health problem because of its rising incidence in the last 20 years, in contrast to the decreasing incidence of carcinomas in other subsites of head and neck associated to the reduced prevalence of smoking.

These tumours of oral squamous cell papilloma larynx, oropha­rynx, larynx, hypopharynx and sinonasal region are linked by squamous cell papilloma larynx characteristics, including a male predominant appearance in the 5th-6th decade of life, an important etiological link with tobacco, alcohol use or betel nut chewing, and a histopathological resemblance 1.

Data regarding the epidemiology revealed that in Romania the oropharyngeal cancer represents 2. In France, during the last 30 years, the mortality in oral and oropharyngeal cancer increased by three times 1. As in cervical cancers, the oropharyngeal infection with HPV is a sexually transmitted disease which involves some particularities of sexual behaviour: a large number of vaginal sex partners, oral and anal sex.

Ale mucoaselor genitale; oro-faringo-laringiene. Infecțiile asimptomatice sunt evidențiate cu ajutorul testelor HPV-ADN, din probe prelevate de la nivelul epidermei sau al mucoaselor, ce nu prezintă modificări din punctul de vedere squamous cell papilloma larynx structurii țesutului 3. Cât le privește pe cele simptomatice productivedin care fac parte verucile, acestea sunt puse în evidență la o simplă examinare clinică 3. În mod obișnuit, 7 până la 9 persoane din 10 infectate cu HPV se vindecă fără tratament, într-o perioadă de cel mult 2 ani 3.

The recent squamous cell papilloma larynx of OPSCC incidence may reflect the social changes regarding sexual behaviour in the modern world 6. The anatomical sites preferred by HPV in oropharynx are the tonsils and the tongue, because of the unique presence of transitional mucosa in oropharynx and particular in tonsillar tissue, which presents important histological similarities with the cervical mucosa.

Tonsillar epithelium invagination may favour virus capture and promote its access to basal cells the only dividing cells in the epithelium. The tonsillar tissue could be a reservoir for HPV in the upper aero digestive tract.

We had two premises for our study on tonsillar cancers. The second consists in the fact that mutagens such as squamous cell papilloma larynx, alcohol and HPV viral oncogenes E6 and E7 induce dysfunctions of two major mechanisms of cellular cycle, which involves the p53 and RBP tumoral suppressor genes 2. Materials and method We made an immunohistochemical retrospective study between andaiming to identify any correlations between tumoral markers and the evolution and prognosis in tonsillar SCC.

Materials We studied 52 cases of patients diagnosed with tonsillar SCC.

We had a first group Group I with 25 cases, where the positive diagnose was made by biopsy and these patients had radiotherapy as first curative method of treatment. We had a second group Group II with 27 cases, where the positive diagnose was made squamous cell papilloma larynx surgical specimens and these patients had surgery as the first curative method of treatment.

The two groups were similar regarding age and gender distribution. The dilutions and markers specifications are revealed in Table 1. We also studied lymphocyte populations CD4, CD8, and populations of dendritic cells in tumour tissue.

Table 1. The dilutions and markers specifications For squamous cell papilloma larynx immunohistochemical identification of tumoral antigens we used the three-stadial indirect method Avidine-Biotine-Peroxidase ABPafter Squamous cell papilloma larynx and colab.

Recomandri EUROGIN European Research Squamous cell papilloma larynx on Genital Infection and Neoplasia Grupele de varsta pentru vaccinarea anti-HPV: vaccinare de rutina :sustinuta din fonduri publice si private pentru fete cu varsta de 9- 14 ani vaccinare catch-up, vaccinare de completare: sustinuta din fonduri publice si private pentru fete si femei cu varsta de 26 ani Recomandari ACIP Advisory Committee on Immunization Practices- Comitetul Consultativ Pentru Imunizare din USA 2 Testarea Papanicolaou, tipajul squamous cell papilloma larynx AND-HPV si nivelul de anticorpi nu sunt obligatorii inaintea vaccinarii la nici o varsta2 recomandari Vaccinul HPV squamous cell papilloma larynx indicatie si pentru preventia cancerului anal si a leziunilor precanceroase anale Nu este necesar un test de sarcina inaintea vaccinarii Daca vaccinarea a fost initiata si femeia a ramas insarcinata, nu este necesara o interventie speciala; dozele ramase se vor efectua dupa nastere. Deasemenea nu exclude posibilitatea, e adevarat mult mai rara, a dezvoltarii unui cancer de col uterin produs de o alta cauza decat infectia cu virusul Papilloma Uman. Vaccinul se poate face la orice varsta, indiferent daca s-a inceput sau nu viata sexuala. Cel mai indicat este ca persoanele de sex feminin sa fie vaccinate impotriva cancerului de col uterin incepand cu varsta de 12 ani, astfel incat ele sa fie protejate inainte de a-si incepe viata sexuala.

Results The gender repartition of cases was: 47 male cases and 5 female cases. The age repartition of cases was: two cases between years old, 14 cases between years old, 21 cases between years old, 10 cases between years old, and five cases between years old. The correlation coefficient between the two sets of data, corresponding to Group I and Group II, was 0. In both groups, we had 48 smoker patients, representing The patients who were both smokers and alcohol consumers represented We studied the tumoral squamous cell papilloma larynx on 52 cases of squamous cell carcinoma.

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