[Hypothyroidism : diagnostic error and sequenlae. Report of a case].

Case report of an 8 year old, untreated, hypothyroid boy from the size and weight of a baby. The delayed maturation of the skeleton caused by the severly retarded metabolism is demonstrated. Typical X-ray signs of the untreated hypothyroid skeleton, sclerosis of the base of the skull and the significant deformity of the anterior portion of the second lumbar body (Swoboda sign) are discussed. The severe retardation of brain development can be demonstrated by the slow and low voltage EEG.