17-ketosteroids and Acanthosis-Nigricans

Topics: 17-Ketosteroids; Acanthosis Nigricans; Adolescent; Adrenocorticotropic Hormone; Androstenedione; Chorionic Gonadotropin; Dexamethasone; Ethinyl Estradiol; Female; Humans; Luteinizing Hormone; Mestranol; Norethindrone; Ovarian Neoplasms; Polycystic Ovary Syndrome; Testosterone; Thecoma

Topics: 17-Ketosteroids; Acanthosis Nigricans; Adenoma; Adrenal Glands; Adrenalectomy; Adult; Blood Glucose; Estrogens; Female; Glucose Tolerance Test; Humans; Microscopy, Electron

Four types of acanthosis nigricans (a.n.) must be distinguished: "benign" a.n., pseudo a.n., a.n. as part of a syndrome and malignant a.n. These different types affect different age groups, follow different courses, are associated with different conditions, are or are not reversible, have or do not have a genetic basis and also show great differences in regard to their significance for the patient's life or well-being.

Topics: 17-Ketosteroids; Acanthosis Nigricans; Adenocarcinoma; Adolescent; Adult; Age Factors; Child; Colonic Neoplasms; Diethylstilbestrol; Female; Humans; Male; Nicotinic Acids; Obesity; Syndrome

Topics: 17-Hydroxycorticosteroids; 17-Ketosteroids; Acanthosis Nigricans; Adrenal Gland Diseases; Adrenocorticotropic Hormone; Dexamethasone; Endocrine System Diseases; Female; Humans; Male; Obesity; Pituitary Diseases; Steroids