TPO and psoriasis: 3) Antibodies and ultrasound features: There is a higher prevalence of TPO Ab, Tg Ab, and Hashimoto's thyroiditis ultrasound features such as hypoechogenicity, pseudo-nodularity, and increased vascularity in patients with psoriasis. Alidrisi et al. mentioned in their article [7] that both antibodies and ultrasound features were found in psoriasis patients, especially in patients with late-onset psoriasis and/with obesity.