Squamous Papilloma of Tongue – A Case Report

Oral Squamous papilloma presents as a cauliflower like growth in oral mucosa which in 50 % cases has been associated with HPV 6 and 11. We report a 51-year-old male patient who presented with a large white coloured pedunculated growth on tongue measuring 4cm×2.5cm × 2cm. Lesion was excised surgically with no recurrence within 3-month of follow- up.

Progressive Increase Trend in HPV-Related Oropharyngeal Squamous Cell Carcinoma in Brazil

Abstract Introduction The prevalence of oropharyngeal squamous cell carcinoma (OSCC) related to Human Papillomavirus (HPV) is rising in the whole world. Objective To access the prevalence and temporal trend of HPV infection in oropharyngeal cancer by analyzing the expression of the p16 protein. Methods We conducted a transversal study in a Brazilian reference oncology center. The sample consisted of 254 patients with OSCC. The analyzed period was from 2013 to 2017. All patients underwent p16 immunohistochemistry analysis. Results The overall prevalence of HPV-related OSCC was of 31.9%. During the analyzed period, we observed a trend of increasing rates of OSCC that marked positive for p16 immunohistochemistry. The annual prevalence of p16-positive cases was of 20.6% in 2013, 23.9% in 2014, 33.3% in 2015, 38.3% in 2016, and 34.2% in 2017. Most of the patients were stage III and IV (84%). Female patients (odds ratio [OR] = 2.43; 95% confidence interval [CI]: 1.003-5.888; p = 0.049) and younger patients (OR = 2.919; 95%CI: 1.682-5.067; p < 0.005) were associated with a higher risk of HPV-related OSCC. Tobacco consumption had a proportional lower risk of HPV-related OSCC (OR = 0.152; 95%CI: 0063-0.366; p < 0.005). Conclusion We observed an increasing prevalence of HPV-related OSCC in a specialized cancer hospital in Brazil.

Application value of indocyanine green fluorescence in sentinel lymph node biopsy for early-stage tongue cancer and oropharyngeal cancer / 中南大学学报(医学版)

OBJECTIVES@#Occult cervical lymph node metastasis is the most important reason for recurrence of early-stage tongue cancer and oropharyngeal cancer. Cervical sentinel lymph node (SLN) biopsy may help to identify them. Pigment dyes and radionuclide were used to label SLN. Both of them had shortage. This study aims to investigate the application and clinical value of indocyanine green fluorescence imaging in cervical SLN biopsy for patients with early-stage tongue cancer and oropharyngeal cancer.@*METHODS@#Retrospective analysis was conducted on 23 patients with early tongue cancer and oropharyngeal cancer, who received surgical treatment and used indocyanine green as a tracer to find SLN in Hunan Cancer Hospital from April to October 2021. The detection rate of SLN was calculated and the distribution of SLN in different regions of the neck was analyzed.@*RESULTS@#SLN was successfully identified in 22 of 23 patients, with a detection rate of 95.65%. Among these 22 patients, 3 patients were found to have cancer metastasis, and the rate of occult lymph node metastasis was 13.63%. No pathologically positive lymph nodes were detected in SLN-negative patients, and thus the positive predictive rate was 100%. For patients with primary lesions located in the anterior 2/3 of the tongue, the constituent ratios of SLN in neck area I, II, III, and IV were 15.15%, 71.72%, 13.13%, and 0, respectively. For patients with primary lesions located in base of the tongue, the constituent ratios of SLN in neck area I, II, III, and IV were 0, 44.44%, 44.44%, and 11.12%, respectively.@*CONCLUSIONS@#Indocyanine green fluorescence imaging has a high detection rate with accurate positive prediction in the anterior cervical SLN biopsy in patients with early-stage tongue cancer and oropharyngeal cancer. Meanwhile, it can also reflect the lymphatic drainage of tumors located at different primary sites, which has high clinical value.

Actualización en carcinoma escamoso orofaríngeo

Resumen El carcinoma escamoso de orofaringe (CEOF) ha tenido un aumento en su incidencia en las últimas décadas, explicándose por el aumento sustancial de su tipo relacionado con el virus papiloma humano (VPH). Existen diferencias clínicas y pronósticas entre los dos grupos de CEOF según su relación etiológica con VPH. Por un lado, los relacionados con VPH se presentan en una población más joven, con menos prevalencia de tabaquismo y consumo de alcohol; además de presentar un tamaño pequeño del tumor primario, con un compromiso linfonodal temprano. Además, aquellos relacionados con VPH presentan un mejor pronóstico que su contraparte no relacionada con el virus, presentando en algunos estudios hasta un 58% menos riesgo de muerte independiente de la modalidad de tratamiento. Actualmente, el sistema de clasificación TNM en su 8va edición presenta un sistema diferente de clasificación y etapificación para ambos grupos. A pesar de aquello, a la fecha el tratamiento habitual no difiere entre ambos, lo que ha llevado a la realización de estudios que buscan responder si la deintensificación de la terapia en aquellos grupos relacionados con VPH y con bajo riesgo de metástasis a distancia, mantendría los buenos resultados oncológicos, disminuyendo las complicaciones a corto y largo plazo asociadas al tratamiento. Sin embargo, aún no existe evidencia que avale consistentemente esta práctica. Finalmente, la prevención primaria a través de la vacuna contra VPH es un elemento prometedor, sin embargo, no existe evidencia que confirme su utilidad.

Abstract Oropharyngeal squamous cell carcinoma (OPSCC) has suffered an increase in its incidence in recent decades, explained by the increase in its type related to the human papilloma virus (HPV). There are clinical and prognostic differences between the two groups of OPSCC according to their etiological relationship with HPV. On the one hand, those related to HPV appear in a younger population, with a lower prevalence of smoking and alcohol consumption; in addition to presenting a small size of the primary tumor, with early lymph node involvement. Furthermore, those related to HPV have a better prognosis than their non-virus counterpart, presenting in some studies up to 58% less risk of death, independent of treatment used. Currently, the TNM classification system in its 8th edition presents a different classification for both groups. Despite this, the treatment does not differ between the two, which has led to studies that seek to answer whether the de-escalation of therapy in the group associated to HPV and with a low risk of distant metastasis would maintain the reported good oncological results, reducing early and long-term complications associated with treatment, however, there is still no evidence to support its use. Finally, primary prevention through the HPV vaccine is a promising element, however there is no evidence to confirm its usefulness.

Quality of life of oral and oropharyngeal cancer patients attending a tertiary care institute in Kolkata

Background: Assessment of quality of life (QOL) helps to find out factors associated with disease progression and response to treatment, identify vulnerable groups. The objective of this study was to assess the QOL (based on physical, mental, social, emotional and spiritual dimensions) of oral and oropharyngeal cancer patients.Methods: A hospital based cross sectional study was conducted among 126 oral and oropharyngeal cancer patients attending radio therapy department of Calcutta Medical College. QOL was assessed by using validated Bengali version of two self-administered questionnaires: European Organization for the Research and Treatment of Cancer (EORTC)-30 and EORTC-35.Results: Among total 81 patients, most of the patients (45.67%) had stage III diseases. Median global health score (GHS) for all patients were 41.67. GHS deteriorated with advancement of the diseases (p=0.000), GHS significantly improved with increasing level of education (p=0.019). GHS was poorer among female patients (median for male was 45.66 and for female was 36.45; p=0.178) and patients with oropharyngeal cancer (median for oral cancer was 50.00, oropharyngeal cancer was 41.67, p=0.215). As per EORTC-35, pain was the major symptom for both type of cancer and was more among patients with oropharyngeal cancer.Conclusions: QOL deteriorates with advancement of the disease and is poorer among females. Co-morbidity status does not affect the QOL. Pain is a major problem of cancer patients, which is more with oropharyngeal cancer patients. Early detection of the cancer and proper pain management and counselling with special focus on females can improve the quality of life.

Safety and effectiveness of transoral robotic surgery for oropharyngeal cancer: a pilot study / 中华耳鼻咽喉头颈外科杂志

To evaluate the indication, safety and effectiveness of transoral robotic surgery (TORS) for oropharyngeal cancer based on our preliminary experience. Twelve patients, including six with tonsil cancer, five with tongue base cancer and one with posterior pharyngeal wall cancer, who underwent TORS with Da Vinci Si surgical system from March 2017 to October 2018 at Tongji Hospital of Huazhong University of Science Technology were respectively analyzed. And the surgical time, intraoperative blood loss, postoperative local bleeding, dyspnea, nerve function injury, oral intake time, whether or not to receive chemoradiotherapy were analyzed. All tumors in the 12 patients were en bloc removed by TORS. Surgical time ranged from 25 to 80 min with an average of 34.2 min. The blood loss ranged from 10 ml to 50 ml with an average of 20.8 ml. The recovery time for oral intake ranged from 1 day to 30 days with an average of 8.4 days. No patient underwent tracheostomy after TORS. Also, no patient manifested with airway obstruction, bleeding or nerve injury symptoms after operation. All 12 patients reached pathologically negative surgical margins. The patients were followed up for 4 to 22 months, with a median of 12 months. All patients who combined with more advanced than T3 stage, or more advanced than N2 stage were recommended to oncologist, then, followed with radiotherapy or chemoradiotherapy if no relevant contradictions occurred. No local recurrence or distant metastasis case was found. With proper indications, the application of TORS in oropharyngeal cancer is a relatively safe, effective and minimal invasive therapy, which merits more clinical applications.

Safety and effectiveness of transoral robotic surgery for oropharyngeal cancer: a pilot study / 中华耳鼻咽喉头颈外科杂志

Objective@#To evaluate the indication, safety and effectiveness of transoral robotic surgery (TORS) for oropharyngeal cancer based on our preliminary experience.@*Methods@#Twelve patients, including six with tonsil cancer, five with tongue base cancer and one with posterior pharyngeal wall cancer, who underwent TORS with Da Vinci Si surgical system from March 2017 to October 2018 at Tongji Hospital of Huazhong University of Science Technology were respectively analyzed. And the surgical time, intraoperative blood loss, postoperative local bleeding, dyspnea, nerve function injury, oral intake time, whether or not to receive chemoradiotherapy were analyzed.@*Results@#All tumors in the 12 patients were en bloc removed by TORS. Surgical time ranged from 25 to 80 min with an average of 34.2 min. The blood loss ranged from 10 ml to 50 ml with an average of 20.8 ml. The recovery time for oral intake ranged from 1 day to 30 days with an average of 8.4 days. No patient underwent tracheostomy after TORS. Also, no patient manifested with airway obstruction, bleeding or nerve injury symptoms after operation. All 12 patients reached pathologically negative surgical margins. The patients were followed up for 4 to 22 months, with a median of 12 months. All patients who combined with more advanced than T3 stage, or more advanced than N2 stage were recommended to oncologist, then, followed with radiotherapy or chemoradiotherapy if no relevant contradictions occurred. No local recurrence or distant metastasis case was found.@*Conclusion@#With proper indications, the application of TORS in oropharyngeal cancer is a relatively safe, effective and minimal invasive therapy, which merits more clinical applications.

Mortality due to oral and oropharyngeal cancer in Uruguay from 1997 to 2014

Abstract Oral and oropharyngeal cancer is considered a public health problem in several countries due to its high incidence and mortality rate. Objective: This study aimed to analyze oral and oropharyngeal cancer mortality in Uruguay from 1997 to 2014 by age, sex and country region. Methodology: A time series ecological study using secondary data was performed. Data on mortality due to oral and oropharyngeal cancers were obtained from the Vital Statistics Department of Uruguay's Ministry of Public Health. Results: The cumulative mortality rate due to oral and oropharyngeal cancer over the study period was of 19.26/100,000 persons in women and 83.61/100.000 in men, with a mean annual rate of 1.75/100,000 in women and 7.60/100,000 in men. Mortality rate from both sites during the study period was 4.34 times higher in men than in women. Malignant neoplasms of other parts of the tongue and base of tongue showed the highest mortality rate. The means of the annual coefficients of deaths were higher for the age groups between 50 and 69 years. Higher mortality rates of oral and oropharyngeal cancer were observed in Artigas (4.63) and Cerro Largo (3.75). Conclusions: Our study described a high mortality rate for oral and oropharyngeal cancer in Uruguay from 1997 to 2014. According to the country's health department, men, tongue cancer, and oral cavity had higher mortality rates, with some variation. Prevention strategies with control of risk factors and early diagnosis are necessary to improve survival in the Uruguayan population.

Effect of double-leaf perforator free flap posterolateral calf peroneal artery on reconstruction of oropharyngeal anatomy after ablation of advanced oropharyngeal carcinoma / 南方医科大学学报

OBJECTIVE@#To evaluate the effect of using free double- leaf perforator flap posterolateral calf peroneal artery in anatomical reconstruction of the oropharyngeal structure after ablation of advanced oropharyngeal carcinoma.@*METHODS@#Twenty-six patients with oropharyngeal defects after ablation of oropharyngeal malignancies were recruited, including 12 with carcinoma in the tongue base, 5 in the latenral pharyngeal wall and 9 in the soft palate. Between July, 2016 and July, 2018, the patients underwent surgeries for reconstruction of the oropharyngeal defects using flaps. The areas of tissue defects repaired by double-leaf perforator flaps ranged from 40.5 to 72.5 cm. Reconstruction was performed for oropharyngeal defects in the soft palate, pterygopalate, parapharyngeal, pterygo- mandibular, and tongue base tissues. The patients' outcomes including mouth opening, functions of deglutition, linguistic function, restoration of palatopharyngeal anatomical structure and postoperative survival were evaluated, and their quality of life was assessed using FACT-H&N scale (Chinese Edition).@*RESULTS@#All the 26 patients with transplantation of the free flaps survived. Six months after the operation, the oropharyngeal function and anatomical structure of the patients were basically restored. The questionnaire survey showed that the patients' physical, social/family, emotional and functional conditions, the total score of the core scale, items scores for the head and neck, and the total score of the scale all improved significantly after the operation compared with those before the operation ( < 0.05).@*CONCLUSIONS@#The free peroneal artery bilobate perforator flap in the posterolateral crus, which seldom has anatomical variations of the blood vessels, allows flexible design and contains rich tissue volume to facilitate defect repair with different approaches and ranges. The application of this flap, which is an ideal perforator flap for reconstruction of the oropharyngeal structure and function, can improve the quality of life of patients following operations for advanced oropharyngeal cancer.

Primary Treatment and Survival Outcomes in Oropharyngeal Cancer / 대한이비인후과학회지

BACKGROUND AND OBJECTIVES: Oropharyngeal cancer is one of those cancers with increasing incidence, and the therapeutic choices remain controversial. This study aims to evaluate the influence of changes in the primary treatment on the prognosis of oropharyngeal cancer patients. SUBJECTS AND METHOD: A total of 135 patients treated for oropharyngeal cancer in a single institution from 2004 to 2017 were analyzed in this study. Disease-free survival rate and the 3-, 5-year survival rates were calculated according to various radical primary treatments, which included concurrent chemo-radiation or radiation therapy, and surgery. Other outcomes including functional outcomes and treatment duration were also reported. RESULTS: The proportion of patients who were no-evidence-of-disease state at the last follow up was 97.8% for the group who underwent surgery as radical primary treatment, followed by concurrent chemo-radiation or radiation therapy (84.1%). The five-year survival rate was 0.7963 [95% confidence interval (CI): 0.6746–0.8765] for the concurrent chemo-radiation or radiation therapy group and 0.9488 (95% CI: 0.8093–0.9870) for the surgery group. When surgery was chosen as radical primary treatment for appropriately selected patients, approximately 30% of the patients could avoid radiation therapy. Gastrostomy or admission for supportive care as functional outcome showed no significant difference between treatment groups. CONCLUSION: Our results show various treatment outcomes depending on the radical primary treatment. These results can be used in clinical decisions and patient counselling.

A Case of the Oropharyngeal Cancer-Related Dysphagia Effectively Treated by Supportive Kampo Medicine / 日本東洋医学雑誌

An oropharyngeal cancer patient often suffers from dysphagia either due to their disease or as a conse­quence of their treatment. Here we report a case of a 61-year-old female with the oropharyngeal cancer-related dysphagia, which was effectively treated with Kampo medicine. After four weeks of treatment with hangekobokuto, her swallowing function was improving. Concomitant use of bakumondoto reduced a feeling of xerostomia. She could return to work. The treatment with Kampo medicine might be effective to reduce the cancer-­related symptoms and to improve the quality of life of the cancer patients.

Cáncer orofaríngeo y virus del papiloma humano en cabeza y cuello: relaciones fisiopatológicas y epidemiológicas / Oropharyngeal carcinoma and papiloma virus in head and neck: phisiopathological and epidemiological relations

Resumen El Virus del Papiloma Humano (VPH) es una enfermedad diagnóstico frecuente, transmitida por contacto entre piel y mucosas. Se han descrito múltiples relaciones etiológicas con neoplasias en órganos del sistema genital y reproductor y a nivel de cabeza y cuello. Éste se ha agrupado y caracterizado mediante análisis filogenéticos y en su secuencia de nucleótidos y aminoácidos. EL VPH progresa por las capas de epitelio de piel o mucosa induciendo malignización celular. El diagnóstico se realiza mediante diversas técnicas de PCR o de hibridación in situ. El carcinoma orofaríngeo es una patología neoplásica con una presentación clínica variada. Su asociación a VPH es inmunohistoquímicamente detectable, y se asocia a una presentación más frecuente en jóvenes, en hombres, con una localización anatómica mejor definida, y con una expresión clínica más florida y temprana. Actualmente se ha documentado un incremento en los casos de carcinoma orofaríngeo a pesar del descenso de su principal factor de riesgo; el tabaquismo. Su incidencia y mortalidad continúan siendo relativamente bajas en comparación con otros tumores en cabeza y cuello. Este incremento se ha asociado etiológicamente a la infección de VPH con subtipos de mayor riesgo de malignidad como el VPH 16 y 18. A nivel nacional existen diferencias estadísticas con respecto a los datos foráneos, sin embargo la cantidad de estudios realizados en nuestra población y los sesgos asociados al subregistro de la enfermedad son un factor importante a tomar en cuenta. Es necesario realizar una mayor cantidad de estudios en la población costarricense para determinar el comportamiento real de esta enfermedad y su relación etiológica con el carcinoma de orofaringe en nuestro país.

Abstract The Human Papilloma Virus (HPV) is a frequently diagnosed sexually transmitted disease, transmitted by contact between skin and mucous membranes. There are multiple etiological relationships between HPV infections and neoplasms in organs of the reproductive and genital system and at head and neck. Those belonging to HPV have been grouped and characterized by phylogenetic analysis and by its sequence of nucleotides and amino acids. HPV progresses through the layers of skin or mucosal epithelium inducing malignant transformation in these cells. The diagnosis of this infection is performed using various techniques of PCR and in situ hybridization. Oropharyngeal carcinoma is a neoplastic disease with a varied clinical presentation. Its association with HPV is detectable by immunohistochemic methods. It's also associated more frequent with young people, men, presentation with a better defined anatomic location and an earlier clinical expression. Currently it has been documented an increase in cases of oropharyngeal carcinoma despite the fall of their main risk factor; smoking. Its incidence and mortality continue to be relatively low in comparison with other head and neck tumors. This increase has etiologically been associated with HPV infection; and with subtypes of increased risk of malignancy such as HPV 16 and 18; as with changes in the behavior of the disease. National statistics differ from the foreign data, however the low amount of studies in our population and the biases associated with underreporting of the disease are an important factor to take into account. It is necessary to perform a greater number of studies in the Costa Rican population to determine the actual behavior of this disease and its etiological relation to carcinoma of the oropharynx.

Oropharyngeal cancer mortality according to the human development index in the Metropolitan Region of Chile, 2002-2014

To determine mortality rates for oropharyngeal cancer according to the Human Development Index (HDI) per district in the Metropolitan Region (RM), Santiago, Chile, between 2002 and 2014. Materials and Methods: an ecological study was carried out. The sample corresponded to individuals over 45 years, from the Metropolitan Region, with oropharyngeal cancer as cause of death, as registered in the Chilean National Institute of Statistics (INE). The HDI was classified into three categories: "medium" (8 districts), "high" (18 districts) and "very high" (25 districts). The crude and adjusted mortality rates were calculated for each year and period. Results: the oropharyngeal cancer adjusted mortality rate for the chosen period was 3.98 deaths per 100,000 inhabitants. The specific mortality rate from oropharyngeal cancer in the "medium" HDI category was 4.01; in the "high" DHI category, 4.42; and in the "very high" HDI category, 3.79. Conclusion: mortality from oropharyngeal cancer was higher in the "medium" HDI category between 2002 and 2014.

A dosimetric study of half jaw technique applied in the treatment planning for oropharyngeal cancer patients / 中华放射医学与防护杂志

Objective To investigate the potential dosimetric advantages of half jaw volumetric modulated arc therapy ( H-VMAT) applied to the Oropharyngeal Cancer, comparing with full jaw VMAT (F-VMAT) and intensity modulated radiotherapy ( IMRT ). Methods Planning CT images of 10 oropharyngeal cancer patients were retrospectively chosen and transferred to Eclipse treatment planning system v. 11. 0 (Varian Medical Systems, Pala Alto, USA), based on which H-VMAT, W-VMAT, and IMRT plans were created. Two full arcs (360°) were adopted for VMAT planning, and the 7 beams were equally distributed for IMRT planning. The optimization constraints remained the same for the three kinds of plans. The dosimetric parameters such as D2 , D98 , D50 , HI, and CI were evaluated for PGTV, PCTV1, PCTV2, PGTVln, and PCTVln. In addition, the maximum dose (Dmax) and D1 cc(minimum dose received by 1cc) of the brainstem and spinal cord were analyzed respectively. The mean dose ( Dmean ) to the parotids, oral cave, larynx, and cervical normal tissues were also reviewed. The monitor units ( MU) for all treatment plans were recorded. Results Comparisons of the three planning techniques showed that H-VAMT improved the HI and CI of the targets (except PCTV2) significantly (HI: F =3. 959, 6. 764, 10. 581, 6. 770, 13. 040, P<0. 05;CI:F=6. 594, 4. 138, 0. 842, 4. 031, 5. 388, P<0. 05);reduced Dmax(F=4. 509, 20. 331, P<0. 05) and D1 cc for brainstem and spinal cord (F=27. 432, 26. 314, P<0. 05) significantly;reduced Dmean(F=4. 279, 29. 498, 19. 295, P<0. 05) to the normal tissues of the mouth, throat and neck significantly. The V50 of the mouth and throat were slightly lower in IMRT plans (F=8. 140, P<0. 05). IMRT was slightly better than W-VMAT in sparing oral cavity and larynx, but the dose distribution was the worst. The H-VMAT plans showed the best dose distribution in the cervical normal tissues, especially for the lower and posterior parts, where IMRT plans displayed high dose curves. Conclusions H-VMAT is dosimetrically superior than W-VMAT and IMRT for oropharyngeal cancer, which could be considered for clinical applications.

Carcinoma epidermoide de orofaringe. Experiencia institucional / Squamous cell carcinoma of the oropharynx. Institutional experience

Los carcinomas epidermoides de cabeza y cuello (CECC), son un grupo poco frecuente de neoplasias, en los Estados Unidos representan el 3.2% de todos los cánceres1,2. Si bien su frecuencia global se encuentra en disminución, los tumores localizados en la orofaringe han aumentado de forma considerable2. El virus del papiloma humano (HPV) es responsable de este aumento. Se ha descripto que los tumores de orofaringe, asociados al HPV, ocurren en pacientes más jóvenes, con enfermedad de bajo volumen a nivel del tumor primario, pero elevada incidencia de metástasis ganglionares, con adenopatías quísticas2,3. La detección del virus del HPV, por inmunohistoquímica (IHQ) o por reacción en cadena de la polimerasa (PCR) son factores pronósticos importantes que siempre deben ser tenidos en cuenta para el tratamiento de estos tumores (AU)

Epidermoid carcinomas of the head and neck are a rare group of tumors, in the United States they account for 3.2% of all cancers. Although their overall frequency is decreasing, tumors located in the oropharynx have increased considerably. Human papillomavirus (HPV) is responsible for this increase. It has been described that oropharyngeal tumors, associated with HPV, occur in younger patients, with low volume disease at the primary tumor level but a high incidence of lymph node metastases, with cystic lymphadenopathy. Detection of HPV virus by immunohistochemistry (IHC) or polymerase chain reaction (PCR) are important prognostic factors that should always be taken into account for the treatment of these tumors (AU)

Oropharyngeal cancer: an emergent disease? / Cáncer de orofaringe: ¿una enfermedad emergente?

Abstract Oropharyngeal cancer incidence has recently increased, thereby attracting public attention. Akin to other malignancies of the upper aerodigestive tract, it has been attributed to the carcinogenic effects of tobacco and alcohol use. However, recent evidence shows that a substantial increase in the disease is attributable to the effects of human papillomavirus (HPV). Marked progress has been made in relation to the knowledge of molecular and genetic mechanisms involved in the genesis and progression of these cancers. This has led to the development of new and promising therapies of a more specific and less toxic nature that have prolonged life and improved its quality. However, these therapies have failed to significantly increase the proportion of patients who are cured. To decrease the mortality associated with these neoplasms, it is necessary to adopt public health measures aimed at prevention and early diagnosis.

Resumen El cáncer de orofarínge recientemente ha incrementado su incidencia, por lo que ha atraído la atención pública. Como en otras neoplasias malignas de las vías aerodigestivas superiores se atribuye a los efectos carcinogénicos del tabaco y alcohol, sin embargo evidencia reciente señala un incremento substancial atribuible a los efectos del virus del papiloma humano. Mucho se ha avanzado en relación a los conocimientos de los mecanismos moleculares y genéticos implicados en la génesis y progresión de estas neoplasias, lo que ha conducido al desarrollo de nuevas y prometedoras terapias, mas especificas y menos tóxicas, que han prolongado la vida y mejorado su calidad, pero no han logrado incrementar significativamente la proporción de pacientes curados. Si se desea abatir la mortalidad por estas neoplasias es necesario emprender medidas de salud publica dirigidas a su prevención y diagnóstico temprano.

Cirugía trans-oral robótica para manejo de cáncer de orofaringe / Trans-oral robotic surgery for tongue cancer

Background: The traditional treatment of oropharyngeal cancer was based mainly in radio and chemotherapy, aiming to avoid organ excisions. However, the adverse effects of these therapies prompted the development of new therapies. Among these, trans-oral robotic surgery (TORS) has promising results. Case reports: We report two patients operated using this technique. An 82 years old woman treated for a tumor in the base of the tongue six years ago with radiotherapy. A new lesion in the tongue was found and excised by TORS uneventfully. The pathology report confirmed the complete excision of the malignant lesion. A 57 years old male with a history of palate cancer treated with radiotherapy in 1990. In 2013 a submandibular mass was biopsied confirming the presence of a squamous carcinoma metastasis. During a bilateral suprahyoid dissection, a tumor in the base of the tongue was found. In a second intervention the tumor was excised by TORS. The pathology reports tumor free borders but near the lesion. Postoperative radiotherapy was recommended.

Introducción: El cáncer de orofaringe representa una importante causa de morbimortalidad en la esfera de las patologías de cabeza y cuello en la actualidad. Su tratamiento tradicional por mucho tiempo consideró la conservación de órganos, utilizando mayoritariamente la radio y quimioterapia como herramientas terapéuticas. Los efectos no deseados tanto de las terapias médicas como las quirúrgicas han obligado a desarrollar técnicas nuevas para el manejo de estas enfermedades. Es así que a partir del año 2006 se ha ido desarrollando a nivel mundial la técnica de cirugía robótica transoral (TORS). La morbilidad y resultados oncológicos de este procedimiento hasta ahora se ven alentadores, por lo que se está transformando en una alternativa terapéutica que debemos manejar. Casos clínicos: Se presentan los dos primeros casos a nivel país realizados en esta institución de cánceres de orofaringe tratados con la técnica tradicional y después de largo tiempo recidivados. Se les realizó cirugía resectiva de sus tumores a través de TORS; se describen los resultados de estos procedimientos.

Awake tracheal intubation in a patient with a supraglottic mass with the Bonfils fibrescope after failed attempts with a flexible fibrescope

Awake intubation with a flexible fibrescope is usually done electively in patients with a known difficult airway. Herein, we describe the case of an elective awake tracheal intubation that was performed on a patient with a large, obstructive supraglottic mass. The intubation was successfully performed using the Bonfils fibrescope after several failed attempts with a flexible fibrescope. This case highlights the usefulness of the Bonfils fibrescope and the limitations of the flexible fibrescope in certain clinical situations.

Not Just for Tobacco Users Anymore!!! The Emerging Evidence of Human Papilloma Virus: An Overview.

Head and neck squamous cell carcinoma (HNSCC) have a broad and varying rate of incidence and mortality around the world. Tobacco smoking and chewing, alcohol consumption are the main etiological agents for HNSCC and have been estimated to account for the majority of disease burden worldwide. Over the past 20 years, there has been an increasing awareness about the human papilloma virus (HPV), the necessary cause of cancer of the cervix that has been etiologically linked with oropharyngeal cancer. Often diagnosed at a late stage this subset of squamous cell carcinoma of the head and neck has an affi nity for the oropharynx and tends to show low diff erentiation histopathologically and better prognosis regardless of the treatment strategy. Th e HPV belongs to the papillomavaviridiae group of virus which can infect the mucosal and cutaneous epithelia in a species-specifi c manner inducing cellular proliferation. Th e HPV can cause active subclinical infection without clinical signs or can also cause clinical infection that can lead to benign, potentially malignant or malignant lesions. Hence, this overview attempts to focus on the relevant characteristics of HPV and its role in oropharyngeal cancer.

Cáncer orofaríngeo: caracterización de la mortalidad en urbanización Valparaíso-Viña del Mar 2001 - 2010 / Oropharyngeal cancer: characterization of mortality in the urbanization Valparaíso-Viña del Mar 2001 - 2010

El cáncer orofaríngeo es un problema de salud de alcance mundial, según la OMS. Es el octavo mas frecuente a nivel mundial en población masculina. Se estima la incidencia anual en alrededor de 275.000 para cáncer bucal y 130.000 para cáncer faríngeo. Dos tercios de los casos ocurren en países en vías de desarrollo. En Chile el 1 por ciento del todos los cánceres corresponden a cáncer orofaríngeo, con tasa de mortalidad histórica de 1,3 x 100.000 hab. El propósito del estudio fue caracterizar la mortalidad por Cáncer Orofaríngeo en la urbanización Valparaíso-Viña del Mar, para la década 2001- 2010. Los datos de fallecidos fueron obtenidos de los libros de defunciones del archivo de las Oficinas del Registro civil de cada comuna. Las tasas de mortalidad fueron calculadas con datos poblaciones proporcionados por el Instituto Nacional de Estadística. La tasa de mortalidad para la conurbación Valparaíso-Viña del Mar alcanzo el 2,6 x 100.000 hab. Con una razón hombre: mujer de 1,3 a 1. La edad media de fallecimiento fue de 70,59 años. En cuanto a ubicación anatómica más frecuente fue orofaringe, luego glándulas salivales y lengua. Diagnóstico histológico más común fue Carcinoma Espinocelular y 24,8 por ciento de fallecidos presentó metástasis. Este estudio se concluye que existe un aumento de la tasa de mortalidad por Cáncer orofaríngeo (CFB) en las conurbación Valparaíso-Viña del Mar respecto a lo informado en el pasado para el país, esto podría estar demostrando un cambio de tendencia fundado en los cambios ambientales y conductuales de la población.

The oropharyngeal cancer is a worldwide health problem according to WHO. It is the eighth most common in the world male population. Annual incidence is estimated at around 275,000 for oral cancer 130,000 and for pharyngeal cancer. Two thirds of the cases occur in developing countries. In Chile 1 percent of all cancers are oropharyngeal cancer, with historical mortality rate of 1.3 per 100,000 inhabitants. The purpose of the study was to characterize oropharyngeal cancer mortality in the urbanization Valparaíso-Viña del Mar, for the decade 2001-2010. Deaths data were obtained from books File deaths of civil registry offices of each commune. Mortality rates were calculated using population data provided by the National Statistics Institute. The mortality rate for the conurbation Valparaíso-Viña del Mar reached 2.6 per 100,000 inhabitants. With a male: female ratio of 1.3 to 1. The average age of death was 70.59 years. As most frequent anatomical location oropharynx, salivary glands and tongue then. The most common histologic diagnosis was Squamous Cell Carcinoma and 24.8 percent of deaths presented metastasis. This study concludes that there is an increase in the rate of oropharyngeal cancer mortality in the conurbation Valparaíso-Viña del Mar about what was reported in the past for the country, this could be showing a trend change based on environmental and behavioral changes of the population.