Fig. 4From: Echogenicity and size of substantia nigra on transcranial sonography (TCS) in patients with attention-deficit/hyperactivity disorder and healthy children aged 6–12 years: a comparative studyAbnormal echogenicity of the thalamus and lentiform nucleus. A Increased echogenicity of the thalamus (compared to normal hypo-echo state and similar to occipital horn) (Arrow), B increased echogenicity of the lentiform nucleus (Arrow)Back to article page