The Final Diagnosis Often Arrives Just Before the Presentation

 Spring has arrived—slugs at the door, pollen in the air, and the season of conferences beginning. But for diagnostic case discussions, one requirement still bothers me: submitting the presentation materials too early.

 

When I returned home last night, I noticed a slug at the entrance.
It felt warmer than usual, and I later realized that the day was Keichitsu, the traditional Japanese calendar day when insects are said to emerge from the ground.

The pollen has been terrible—almost enough to make me “close my nose” rather than just complain—but it is unmistakably the feeling of spring.

Next week I will give two presentations at a research meeting.

These are not lectures in the usual sense. They are pathological explanations of cases in which clinicians struggled with diagnosis and treatment.
Using biopsy specimens from the patients, I will discuss how we approach the diagnosis and what kind of disease mechanisms we consider.

As expected for difficult cases, both of them are extremely challenging.
In truth, achieving a perfectly definitive diagnosis in such cases is rarely possible—but once I have accepted the task, there is no turning back.

The meeting will be held in a hybrid format, both onsite and online, and the organizers require that presentation materials be submitted in advance.

I have never been very good at that.

For a standard lecture, where the content is already fixed, early submission is not a problem.
But case discussions are different. Preparation time is limited, and I want to keep thinking about the case for as long as possible.

If everything must be prepared early, new findings may appear just before the presentation.
Sometimes I have had to leave out an important observation simply because time ran out, only to have the session chair point it out during the discussion.

The truth is that, in diagnostic case presentations, the final insight often arrives suddenly—almost as if it falls from the sky—and it tends to happen right before the talk.

The same is true for shaping the story: deciding how to explain the reasoning process in a way that will actually help the audience understand how the diagnosis was reached.

But when advance submission is required, that moment of insight must be captured twice—once for the submission, and once again for the actual presentation.

After reaching that first peak, the tension naturally fades.
Before the real talk, I must somehow build it back up again.

I suspect this system was designed mainly for the convenience of companies running online streaming platforms, rather than for the realities of how presenters actually work.

Still, I accepted the invitation.

So this weekend, I will simply have to concentrate and do my best.