| Abstract: | Metrizamide myelography, followed by CT examination, demonstrated features consistent with syringohydromelia in three patients. One was an adult, male, of 23 years and two were females of 5 and 6 years respectively. Subsequently, metrizamide was introduced into the syrinx by direct needle puncture in each patient. The anatomical details of the syrinx are well demonstrated, continuity of the myelocyst is easily established, and the possibility of communication with the fourth ventricle is readily assessed. The technique is simple and was without complication in these cases. The myelo-graphic and CT findings are also presented. The Arnold-Chiari Type I malformation was present in two patients. The myelocyst did not communicate with the fourth ventricle in two patients. Poor communication was demonstrated in one patient by CT examination immediately after the myelocystogram. |
