49.—(1) A claimant may appeal the decision of an adjudicating medical authority on a diagnosis or recrudescence question and in that event the case shall be referred to a medical appeal tribunal.
(2) If the adjudication officer is of the opinion, or if the Department notifies the adjudication officer that it is of the opinion, that any decision of an adjudicating medical authority on a diagnosis or recrudescence question ought to be considered by a medical appeal tribunal, the adjudication officer shall refer the case to a medical appeal tribunal for consideration and the tribunal may confirm, reverse or vary the decision as on an appeal.