SQL & PL/SQL :: Converting XML Message To Record Type

We have a queue in which the message is coming from external system. The payload of the queue table is a PL/SQL record type. Once we get the message in the queue, we de-queue the message and read through the PL/SQL type collection and process the message.

From the below query, we are able to convert the PL/SQL collection message to XML message and see the data.

SELECT dbms_xmlgen.getxml
('SELECT USER_DATA
FROM <Queue_table> X
WHERE X.USER_DATA.SALE_ORDER.P_HEADER_REC.ORIG_SYS_DOCUMENT_REF=800501298')
FROM dual;

The new requirement is the message would come in a XML message in the queue. So my question is, is there any way through which the XML message can be converted to the PL/SQL record structure directly (it would be the opposite operation of the above query).