@Conan1255, this is an advanced problem which is why all the proposed designs are complex.
In my search for a solution to these tires of problems, I first had to define the problem and see if it fit any of the systems that I did a methodical analysis on. You have a root word for the disease name. Then you have categories and not individual words to work with. Each category has many images to store. The categories should be linked together and following some sort of theme in my mind.
The two basic memory techniques are the peg and the story. The peg list is good if you have enough pegs and want to step through each association to the pegs. You need a new peg list for each sequence you keep for the long term.The palace is a type of peg list using locations.
The story is good if you just want to link up any number of images without any organization except which one comes next in the chain.
You’re problem fits neither of these easily. I mean the story would somewhat work. You start with the disease name and then add an image that represents the definition then add images for the definition. Then you link in a standard image for the etiology, possibly a location like sewage processing plant or a leper colony and follow with the images for the etiology. You continue on with that story making sure that the narrative logic between the images helps you move from one image to the next.
Another technique I came up with and you can search for my previous posts here, is an abstract peg list, The five different categories are all a generic type of location. If the locations all have pegs, it limits how much information you can store there. The story lets you have unlimited images at each location.
It’s a difficult problem for sure. Maybe you could post a sample set of data for an easy disease (nothing too gross) and I and others could work through a solution?
If you need some help with basics, there’s a good guide here:
Doug