Marek's?

[Buddy2biddies]

Have a hen who has been losing weight. Until yesterday she seemed fine. Today she couldn't get out of coop or walk well. Isolated her and tonight she cannot stand. She has a golf ball sized tumor on side under her wing. I lost another hen about 6 weeks ago who ate like crazy but got to skin and bones quickly..

worming with safeguard and will have antibiotics coming tomorrow. Is this Marek's?

 

[Eggcessive]

It does sound like some of the symptoms, but a necropsy or a blood test would be the only way to confirm it for sure, since other diseases can look alike. Sorry about your hen. The links below can give you some of the many symptoms of Mareks. In the second link below, there is a list of lookalike diseases:
http://extension.unh.edu/resources/files/Resource000791_Rep813.pdf
https://www.backyardchickens.com/a/the-great-big-giant-mareks-disease-faq
http://partnersah.vet.cornell.edu/avian-atlas/#/disease/Marek's_Disease