We also compare our schools with those of Canada, Europe and Latin America. Recommendations aimed at modernizing medical school curricula are made.Interpretation and description of findings detected in upper-endoscopy and colonoscopy are qualitative processes which depend on the experience and skills of the endoscopist performing the procedure. This explains the high variability of endoscopic reports, hampering their interpretation, specially by general practitioners. Classifications, scores and scales give a quantitative support to these qualitative processes. The aim of this review is to describe the classifications, scores and scales most frequently reported in digestive endoscopy, specially those with the highest methodological support in terms of validation and reproducibility. These tools facilitate the description of findings related to gastroesophageal reflux, Barrett's esophagus, gastroesophageal varices, stigmas related to non-variceal gastrointestinal bleeding, advanced and incipient neoplasms, bowel preparation for colonoscopy and severity scores of inflammatory bowel diseases. In summary, these tools enable to standardize endoscopic reports, simplifying their interpretation.Medication-related osteonecrosis of the jaw is a disease where there is necrotic bone exposed or that can be explored by means of a fistula in the maxillofacial region. It has been associated with the use Biphosphonates and denosumab for osteoporosis. Although its etiology is unclear, it may be related to a decrease in bone turnover produced by these drugs, rendering the bone more prone to generate cell necrosis during invasive dental procedures, especially in the posterior region of the jaw. There is no consensus about the prevention and treatment of this condition. The aim of this paper is to present a review of the literature with the main characteristics of osteonecrosis of the jaws associated with drugs, together with a proposal for prevention and treatment for these patients.Cancer is one of the leading causes of death worldwide. The success rate of conventional anticancer therapeutic approaches such as chemotherapy is limited by the non-specific toxicity and low specificity towards specific tumors, which are highly dependent on the mutational burden present on each patient. Similarly, targeted therapies have proven to induce resistance in numerous malignancies. Therefore, immunotherapy has emerged as a better approach to discriminate between "the own" and "the non-own", which occurs through two types of mechanisms, innate and acquired immunity. Acquired immunity is one of the targets for new immunotherapeutic treatments, unleashing the power of antigen-specific T cells as a potential therapeutic weapon for cancer treatment. Thus, immunotherapy modifies the own immune system to increase the recognition and elimination of cancer cells by identifying these cancer antigens. One of the advantages of immunotherapy, when compared to conventional anticancer approaches, is the generation of long-term immunity (immunological memory). Currently, there are different potential types of immunotherapy in cancer to promote the modulation of the immune response. Among them, the use of cytokines, vaccines, viruses, monoclonal antibodies, and the generation of adaptive immune response cells have achieved successful results in some types of cancer. Poor living conditions promote the spread of communicable diseases. It happened with Tuberculosis (TB) and is happening with COVID-19. Due to its dynamic nature, this group of diseases must be studied in the context of the social determinants of health. To describe the epidemiological behavior of COVID-19 in response to the control strategies implemented by the Chilean Ministry of Health and its similarities with the socio-economic distribution of TB in the Metropolitan Region (MR) of Chile. The 2018 Tuberculosis rates and average income of districts belonging to the MR were described, as well as the incidence rates of COVID-19. A Pearson correlation analysis was applied between the rates of both diseases, to assess similarities in the epidemiological distribution patterns. The RM accounts for over 50% of the total national cases of COVID-19. After the implementation of selective quarantines, only four districts in the RM managed to control the outbreak (those with the highest incomes). In the rest, a clear increase in cases was observed. The districts with the highest increase in cases were the most disadvantaged, and those with the highest TB rates during 2018, with a correlation coefficient of 0.6. Control policies cannot deepen health inequalities. If vulnerable groups, as well as the factors that determine their health, are not properly identified, the consequences of the current pandemic could be even more devastating.Control policies cannot deepen health inequalities. If vulnerable groups, as well as the factors that determine their health, are not properly identified, the consequences of the current pandemic could be even more devastating. Syphilis continues to be a common sexually transmitted disease. To describe the epidemiologic features of patients with syphilis consulting in a Chilean sexually transmitted diseases clinic. Review of medical records of patients with positive serology for syphilis, who attended a unit of sexually transmitted diseases between 2015 and 2017. Of 266 cases, 61% were male and 74% were aged between 20 and 49 years. The highest incidence was observed in males aged between 20 and 30 years. Eighty five percent of cases were diagnosed in latent phases, 10% of the cases had a co-infection with HIV and 18%, a history of other sexually transmitted disease. The rate of coinfection was significantly higher in men than in women (78 and 28%, respectively; p < 0.01). Only 6.4% reported always using a condom. Men used it with higher frequency than women (72 and 28% respectively; p < 0.01). A low adherence to treatment and faulty follow-up and treatment of sexual contacts was observed. KHK-6 purchase Twenty five percent of women diagnosed with syphilis were pregnant and 27% of them had a premature birth, with one neonatal death. A high incidence of syphilis was observed, especially in men of younger ages. The diagnosis is delayed, the treatment of sexual contacts and the use of condoms are uncommon. Although the treatment of pregnant women is appropriated, some perinatal complications are observed.A high incidence of syphilis was observed, especially in men of younger ages. The diagnosis is delayed, the treatment of sexual contacts and the use of condoms are uncommon. Although the treatment of pregnant women is appropriated, some perinatal complications are observed.