The term simple mastectomy is identified in base64 scheme by the sequence c2ltcGxlIG1hc3RlY3RvbXk=, while the MD5 signature is equal to 6557bfc9e8f9324a291d83e4a5d640de. The ASCII encoding of simple mastectomy in hexadecimal notation is 73696d706c65206d6173746563746f6d79.