Introduction:

Thyroid cancer is the most prevalent endocrine neoplasm and the third most common tumor in Colombian women. It has a good prognosis in the absence of metastasis. The lungs are the most affected tissue by metastasis in patients with thyroid cancer. The objective of this work was to describe the prevalence of thoracic metastases in patients with thyroid cancer in a cancer reference hospital from Bogotá, between 2016 and 2019.

Materials and methods:

The study was cross-sectional, with non-probabilistic sampling of consecutive cases in patients older than 18 with thyroid cancer who were attended at the National Cancer Institute between 2016 and 2019.

Results:

241 patients were included in the study; 53 had thoracic metastases. The mean age of patients with metastasis was 59.6 years (SD ± 12.7); 77.3% were female and 90.5% showed papillary carcinoma. The prevalence of thoracic metastases was 21.9%. The most common comorbidity was arterial hypertension (32.08%). The most common symptom was dyspnea, with 15%. 34% of patients had thyroglobulin of more than 38 ng/ml and 22% had detectable anti-thyroglobulin antibodies.

Variables associated with thoracic metastases were age (p = 0.002), weight (p = 0.019), cervical adenopathies (p = 0.007), presence of dyspnea (p = 0.004), and thyroglobulin values greater than 38 ng/ml (p < 0.001). Cervical adenopathies were found in 86% of patients with metastasis, suggesting the fact that they are a risk marker for metastasis.

Conclusions:

This study allows us to establish local data, whose results promote future prospective studies that identify associated variables and prognostic factors in patients with thyroid cancer.

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