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Updated: October 27, 2026
A recent example of the pygopagus type was Rosa-Josepha Blazek, born in Skerychov, in Bohemia, January 20, 1878. These twins had a broad bony union in the lower part of the lumbar region, the pelvis being obviously completely fused. They had a common urethral and anal aperture, but a double vaginal orifice, with a very apparent septum.
Tynberg remarked that he believed them to be distinct and separate children, and not dependent on a common arterial system; he also expressed his intention of separating them, but did not believe the operation could be performed with safety before another year. Jacobi describes in full Tynberg's instance of pygopagus.