This is a retrospective observational cohort study. The clinical, pathological and treatment data of participants identified with adrenocortical carcinoma from the year 2000 onwards will be evaluated. Participants recruited for this study will be identified at the participating sites.

Adrenocortical carcinoma is one of the rarest neoplasms in the world. In Brazil, especially in the South and Southeast regions, the incidence of adrenocortical tumors is around 15 times higher than in the rest of the world, largely attributed to the significant prevalence of the TP53-R337H germline mutation in this population. In view of this characteristic, the clinical and epidemiological characterization of this cohort, as well as the identification of prognostic factors, is of great importance. The starting point for this project was the cohort of 66 participants with adrenal carcinoma included in the final project of the medical residency in clinical oncology at the A.C. Camargo Cancer Center by student Rafael Haikal dos Santos Abduch. The aim is to include case studies from the main Brazilian site that have followed up and treated patients with adrenal carcinoma.

Inclusion Criteria:

• Participants over 18 years old;
• Diagnosis of adrenocortical carcinoma with at least one clinical evaluation at the reference institution;
• Initial diagnosis or recurrence from the year 2000 onwards.

Exclusion Criteria:

• Participants with insufficient clinical or pathological data in the medical records.

Data will be included from 150 participants diagnosed with adrenocortical carcinoma who meet the study's inclusion and exclusion criteria. Data will be collected from the medical records of the included research sites throughout Brazil.