I'd say Oricon Style is pretty reliable, though their articles tend to be 1% new stuff, 99% unimportant and/or background info...
...as it is with this one too. There's really not much else to the Oricon article that's not already in the Tokyohive one, just that Yoshiki didn't tell anyone cuz he didn't want them to worry about him (yea, and passing out in your hotel room totally didn't cause anyone to worry at all *roll eyes*), and his doctor saying that there is a chance that it could lead to cancer, but they're trying to figure out how to prevent that and in the mean time, Yoshiki's gonna undergo treatment for it. (I love your dedication, Yoshiki, but please please please, for the sake of all your fans, PLEASE take better care of yourself! ><)
Next paragraph talks about his surgery last year, what he had, symptoms that he (could have?) suffered, what other illnesses it could lead to, and how they found out about the hyperthyroidism then...how he kept on doing concerts and recording as he took his treatments. There's also another Japanese artist who had the same condition and is currently undergoing treatment...
Last paragraph talks about the X members discussing and agreeing that even if it's just a little, they wanna use images of hide in their concerts because they want hide there with them on their first North American Tour, but because of the request from hide's family, they couldn't. This is their first tour since 14 years (since their DAHLIA tour in 1996), after they finish their concert in NY, they have plans for another concert in Japan next spring.