List Diseases – S
An acquired speech disorder in which there is a disruption or loss of the ability to perceive, understand, and use speech as a means of communication is defined in clinical neurology as receptive-expressive or sensorimotor aphasia.
Alalias are speech deficits that result from damage to speech areas of the brain during fetal development or during childbirth.
Autoimmune factors of habitual miscarriage include the presence of antibodies to human chorionic gonadotropin (hCG). According to I.V. Ponomareva et al. (1996), antibodies to hCG are found in the serum of 26.7% of women suffering from habitual miscarriage. Having high affinity, they block the biological effect and in some cases reduce the concentration of hCG.
Secondary immunodeficiency is represented by disorders of the immune system that develop in the late postnatal period in adults and children and are not the result of any genetic defect.
Secondary hypogonadism, or hypogonadotropic hypogonadism, most often occurs as a result of primary gonadotropic deficiency, which may be combined with deficiency of other pituitary tropic hormones.
Secondary erythrocytosis (secondary polycythemia) is erythrocytosis that develops secondarily due to the influence of other factors. Frequent causes of secondary erythrocytosis are smoking, chronic arterial hypoxemia and tumor process (tumor-associated erythrocytosis). Less common are hemoglobinopathies with increased affinity of hemoglobin to oxygen and other hereditary disorders.
Grade 2 heart block is a sudden or progressive delay in the time it takes for an electrical signal to travel through the atria that sets the rhythm of heart muscle contraction.
Seborrheic keratosis (syn.: seborrheic wart, senile wart, basal cell papilloma, seborrheic nevus of Unna, seborrheic keratopapilloma) is a benign tumor.