The term posterior cardinal vein is identified in base64 scheme by the sequence cG9zdGVyaW9yIGNhcmRpbmFsIHZlaW4=, while the MD5 signature is equal to fd1595d17958af8dd07dc806d36a89e3. The ASCII encoding of posterior cardinal vein in hexadecimal notation is 706f73746572696f722063617264696e616c207665696e.