Background Thymomas are a group of rare neoplasms of the anterior mediastinum. The objective of this study was to describe the demographics, clinical characteristics and treatment approaches in Latin America.

Conclusions Our data provides the largest insight into the clinical characteristics and outcomes of patients with thymomas in Latin America. Survival in patients with thymomas continues to be very favorable, especially when subjected to adequate local control.

Background: Several studies have shown that the non-small-cell lung cancer (NSCLC) genomic background among Hispanics differs from other populations. The finding of low-frequency genomic alterations in cell-free DNA (cfDNA) can increase diagnostic accuracy and could improve treatment in NSCLC. Methods: Data from 54 Hispanic patients with advanced NSCLC with high clinical suspicion for ALK, EGFR, and ROS1 mutations were collected (including young age, female sex, and non-smokers).

Abstract The ACHOCC-19 study was performed to characterize COVID-19 infection in a Colombian oncological population.

Conclusion In our study, patients with cancer have higher mortality due to COVID-19 infection if they have active cancer, metastatic or progressive cancer, ECOG PS >2, and low socioeconomic status.

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Abstract We present the case of a 73-year-old male patient with a history of tobacco use who presented with a central nervous system mass that was confirmed to be a lung adenocarcinoma metastasis. High PD-L1 expression as well as negativity to other targetable drivers led to initiation of pembrolizumab monotherapy and ablative stereotactic radiation therapy on oligo-residual disease, achieving a complete response after 2 years of therapy. Following discontinuation of systemic treatment, the patient developed widespread desquamative plaques.

Abstract BIM activation is essential for epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitor (TKI)–triggered apoptosis in EGFR-mutant non–small-cell lung cancer (NSCLC). A deletion in the intron two of the BIM gene results in generation of alternatively spliced isoforms that impairs their apoptotic response to TKIs, conferring the NSCLC cells intrinsic resistance to these medications. Patients with both alterations have poor clinical evolution.

Background No evidence currently exists characterising global outcomes following major cancer surgery, including esophageal cancer. Therefore, this study aimed to characterise impact of high income countries (HIC) versus low and middle income countries (LMIC) on the outcomes following esophagectomy for esophageal cancer.

Colombia is a country on the northwest of South America, and it is divided into 32 departments, a capital district, 1121 municipalities, and indigenous territories. Population growth in the period 1990 to 2016 was 42.0%, during which time population structure became regressive and older, with most living in urban areas (82%) (Fig. 1A–C). The Colombian health system is made up of a social security sector and a private sector. The system's backbone is the General Social Security Health System, with a coverage near to 100%.