Introduction: Cancer remains one of the main public health challenges in Brazil, with a growing impact on population morbidity and mortality. Despite advances in diagnosis and treatment, significant inequalities persist in access to oncology services, especially in regions far from major urban centers. In the 11th Health Region of Pará, which covers part of the state’s southeast, this situation is worsened by the centralization of care at Ophir Loyola Hospital (HOL) in Belém, since Marabá, the largest city in southeastern Pará, had no High-Complexity Oncology Care Unit (UNACON) until April 2024. In this context, local epidemiological studies are essential to support more equitable and effective public health policies. Objectives: To identify the epidemiological profile of cancer patients from southeastern Pará treated at HOL between 2021 and 2024. Methods: This is a descriptive, ecological, and cross-sectional study based on secondary data. Information was extracted from medical records of patients from Southeastern Pará treated at Ophir Loyola Hospital (HOL), a tertiary cancer care center located in Belém, Pará, Brazil. Data collection was carried out in collaboration with the local research team and covered the period from 2021 to 2024. Cases were classified according to the International Classification of Diseases for Oncology (ICD-O) and the 11th revision of the International Classification of Diseases (ICD-11). Data were stratified by gender, age group, and municipality of residence, considering the Integration Regions of Carajás, Tucuruí, and Rio Capim. This study was approved by the Research Ethics Committee of Hospital Ophir Loyola, under protocol number CAAE 77006324.1.0000.5550. Results: A total of 4,465 cancer cases were recorded between 2021 and 2024. A predominance of female cases was observed (2,928 cases), compared to male cases (1,537). The municipalities with the highest absolute number of cases were Tucuruí, Marabá, Parauapebas, Canaã dos Carajás, and Breu Branco. A significant increase was noted in 2024, with over 60% of cases concentrated in that year, possibly indicating changes in the reporting system or a real increase in incidence. The predominant age group was 40 to 69 years; however, a relevant proportion of patients aged 20 to 39 was noted in municipalities such as Tucuruí, Canaã, and Breu Branco, pointing to inequalities in access to cancer diagnosis. Conclusion: Our results present significant territorial and structural inequalities in cancer care in southeastern Pará. The abrupt increase in 2024 suggests the need to investigate possible changes in epidemiological surveillance or an actual rise in disease incidence. The younger age profile in certain municipalities may indicate early exposure to environmental and occupational risk factors. Strengthening regional epidemiological surveillance, expanding oncology services to inland areas, and developing targeted occupational health initiatives are urgently needed.
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/
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