Meera Pal is a Northern California-based writer with a background in journalism and books. She covers pets, real estate, tech, and everything in between. You can follow her on Twitter @Meerakat Kelly ...

Spindle cell sarcomas include a wide variety of tumors, some of which, such as synovial sarcoma (SS) and malignant peripheral nerve sheath tumor (MPNST), may have overlapping histologic features.

In dogs, mast cell tumors are the most common malignant skin tumors, accounting for approximately 16–21% of all skin cancers. These tumors can appear anywhere on the body but are most frequently found ...