Is this a Cairn Terrier?

This  is the little dog with a tumor. She seems very nice and loves mom. She is having her fourth chemotherapy session on Thursday. We all hope she makes it. She is a bit of a joker like Tequila was. Mom says she looks like a Cairn Terrier. We think she is just another Vira lata. What do you think?

Sam is not a pedigree, Mom found out. We all love her playful cute character anyway especially mom. Here are some of the e mails mom got about her

You e-mail was blocked for some reason so we missed it. We apologize for our late response.
We are a family from Belgium and we love animals and dogs in particular. We have several dogs, most are Havanese.
It's a great job you do with the street dogs. We think it's wonderful that people help them. We try to support friends of us who do the same here in Belgium. We used to work as volunteers in a local animal shelter, but since we have several dogs of our own now and we do lots of activities with them we don't have time anymore to do that. Dogs mean a lot to us. They are trustworthy and so attached.
The dog on the picture is a very special dog. We are so sorry to hear that she has cancer. 
We don't think that she is a Havanese. Her coat is different and she is too large in size. A Havanese is between 23 and 27 cm. It's like a Maltese but a little bit larger and can have all kinds of colours and patterns.
The coat of a Havanese is long, but doesn't touch the ground. It's silky or wavy.
Her head is also different. The ears are placed higher than in Havanese.
But she is a pretty dog though. We can't define the breed. It's possible that she's a mix of several breeds.
We've also visited your blog. Great job! Keep up the good work!

Lots of greetings,
Linda, Kristine, Laura
& i nostri Felici Animali
www.felici-animali.be





And here is another one
No this isn't a Cairn terrier. They do not have drop ears. The coloring is
similar and she could be a Cairn mix of some kind. Possibly with some
Soft-coated Wheaten terrier - do they have that breed in Brazil? She is
beautiful whatever she is - thank you for taking care of the street dogs -
what a wonderful thing to do.

All the best,
Susan
Volunteer Coordinator - CPCRN