Thyroid nodules in Hispanic patients with systemic lupus erythematosus.
A thyroid nodule (TN) is a discrete lesion in the thyroid gland radiologically distinct from the adjacent parenchyma, with a prevalence variable depending on the diagnostic method used and the study population. Thyroid disorders have been identified in more than 50% of patients with systemic lupus erythematosus (SLE); however, the prevalence of TN has not been frequently studied. We identified a prevalence of 27% TN in 55 SLE patients > 16 years of age. One-third of TN were >1 cm with radiological features of malignancy. The mean age of patients with TN was 39 ± 11 years, 93% women, and SLE duration 10 ± 6 years. Among patients, we reported family history of cancer in three cases (20%), thyroid disease in one (7%), and autoimmune disease in six (40%). Regarding treatment, 50% of patients with TN were treated with azathioprine vs. 23% of patients without TN (p = 0.02), with an OR of 3.94 (95% CI 1.12-13.84, p = 0.03). As a conclusion a high prevalence of TN in SLE patients was found. Prevalence of TN correlated only with history of azathioprine use. We don't know the long-term implications of our findings; however, a functional and morphological evaluation of the thyroid gland is warranted in all patients with SLE.
1Department of Internal Medicine, University Hospital "Dr José Eleuterio González", México.
D L
DL
Quintanilla-Flores
M I
MI
Hernández-Coria
G
G
Elizondo-Riojas
D A
DA
Galarza-Delgado
J
J
González-González
H E
HE
Tamez-Pérez
D000328:Adult; D001379:Azathioprine / Q000009:adverse effects / Q000627:therapeutic use; D005260:Female; D006801:Humans; D007166:Immunosuppressive Agents / Q000009:adverse effects / Q000627:therapeutic use; D008180:Lupus Erythematosus, Systemic / Q000188:drug therapy / Q000453:epidemiology*; D008297:Male; D008800:Mexico / Q000453:epidemiology; D008875:Middle Aged; D015995:Prevalence; D012307:Risk Factors; D013964:Thyroid Neoplasms / Q000150:complications / Q000453:epidemiology* / Q000209:etiology; D016606:Thyroid Nodule / Q000453:epidemiology* / Q000209:etiology; D055815:Young Adult
D007166:Immunosuppressive Agents; D001379:Azathioprine
Hispanic; Lupus; thyroid nodule