Introduction: The World Health Organization has recognized benzene as a carcinogen since 1982. Approximately 7 million Brazilian workers are exposed to benzene, and the difficulties in reducing exposure contribute to cases of occupational cancer. Among the professions most exposed to its harmful effects are workers in the chemical industry and the oil sector. Objectives: To analyze the epidemiological profile of cancers related to occupational exposure to benzene in Brazil between 2020 and 2024. Methods: This is an ecological and descriptive time series study, which analyzed the relationship between work-related cancer and exposure to benzene by reporting region, in the period 2020 and 2024. The study used secondary data extracted from the Department of Informatics of the Unified Health System (DATASUS), integrating epidemiological information and environmental and occupational exposure records. The variables used in the study included the regional distribution of notifications, the sex of the individuals (male and female), the age group covering all ages, with occupational exposure to benzene and the notified cases of malignant neoplasms associated with this chemical agent, with emphasis on leukemias and lymphomas. Results: Between 2020 and 2024, 3,635 cases of occupational cancer were recorded, 251 of which were related to benzene exposure. The South had the highest number of cases (119) and the North the lowest (1). Males were the most affected (216 cases), followed by workers over the age of 50. In addition, white workers (170) and brown workers (62) were the most affected. Those most affected were those with less schooling and longer exposure (>1 year). In addition, 119 of the cases also reported exposure to other carcinogens. Self-employed workers were the most affected (100 cases). In no case was a Communication of Accident at Work (CAT) issued. Looking at the ICD of notification, the most common forms of cancer were other malignant neoplasms of the skin (44 cases), cancer of the bronchi and lungs and, lastly, myeloid leukemias. Conclusions: The data shows the importance of occupational cancer associated with exposure to benzene in Brazil, especially among older workers with low levels of education and longer exposure times. In addition, underreporting, reflected in the absence of CATs, compromises the recognition of work-related illnesses and the enforcement of labor rights in order to implement more effective measures to protect these workers.
It is with great enthusiasm that we present the Annals of the Oncology International Symposium 2025, an event that continues to solidify its significance in the oncology landscape of northern Brazil. Held in Belém, Pará, Oncology 2025 centered around the theme "The cancer control challenge: better knowing it to best facing it," dedicating itself to exploring the latest frontiers in cancer treatment and prevention.
This year, the symposium provided a deep dive into the essential role of knowledge in the fight against cancer, presenting new perspectives and scientific advancements across various areas of oncology. Renowned global experts gathered to share their most recent research and innovative approaches, offering participants a comprehensive view of the challenges faced by healthcare professionals and patients worldwide.
Presentations and discussions during the event focused on critical topics such as the use of new technologies, advancements in personalized therapies, and more effective prevention strategies. Additionally, particular attention was given to the unique challenges faced by the Amazon region, with efforts aimed at developing region-specific solutions to meet local needs.
Beyond being a high-caliber academic event, Oncology 2025 stood out as a moment for integration and professional networking, with the warm hospitality of the city of Belém offering participants a unique experience. This event became a platform for exchanging ideas, where science, culture, and humanity came together in pursuit of a common goal: to improve cancer control both in Brazil and globally.
This collection of abstracts and articles presented during the event reflects the ongoing dedication to research and the development of innovative solutions, highlighting the importance of collaboration and shared knowledge in the fight against cancer.
General Submission Guidelines:
The presenting author, who does not have to be the first author, must be registered for Oncology 2025.
Each abstract may have up to 10 authors, including the main author and co-authors.
Only original, unpublished work will be accepted.
Submissions must be related to oncology. However, project descriptions, work proposals, experience reports, and literature reviews will not be considered.
Clinical case reports are allowed, provided the abstract addresses scientific questions, details clinical observations, and includes primary scientific data.
The abstract must be written in English, but presentations may be given in Portuguese.
Abstracts must be between 300 and 500 words.
Comissão Organizadora
Comissão Científica
See Annals of Oncology 2023 at:
https://www.even3.com.br/anais/oncology-2023-international-symposium/
Complete tool for submission, evaluation and publication of proceedings for scientific events.
