Thanks for the detailed answer IRescue!! I'm going to call the vet he saw on Monday and find out what panels he had run...if more detailed bloodwork is in order I'll pay for it since I forgot to get my brother's gf a Christmas gift!

The research I've done on post-shave alopecia suggests that one thing that might help if there's no medical root is to card his coat regularly to help unclog the hair follicles. Does anyone have any experience with or input on this? Any other ideas? Since his remaining hair is so short I'm thinking a lava stone would be better than trying ot use my FURminator and possibly irritating his skin.

They have no intention of shaving him ever again...but I'll pass this information on, just in case. Since Boris LOVES any kind of touching or contact, keeping him groomed won't be an issue even if he suddenly turns into cousin It.

He's now the proud owner of a sweater and a quilted coat to go OVER the sweater, so I think he's no longer chilly!