A second clinical opinion (Rene Gandolfi in Castro Valley, CA) confirmed the very probable diagnosis of adrenal tumor, and suggested we operate soon. Today, Hannah (2 y/o) had her right adrenal removed, which contained a large tumor. She did fine, and everything is good except my wallet ($800+). Gandolfi seems a very good vet, and I recommend him. His staff is very thorough, and his knowledge of weasel medicine seems quite extensive. Thanks to all of you that offered advice. [Posted in FML issue 1301]