This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Synovial sarcomas spread by? 
Select and explain. 
A. Hematogenous route, B. Lymphatic route, C. Drop metastasis, D. It doesn't metastatise, it is locally invasive tumor
B: Lymphatic route
Answer: B: Lymphatic route 
Explanation: Usually sarcomas spread by hematogenous route. But synovial sarcoma and alveolar rhabdomyosarcoma are exceptions, they spread by Lymphatic route.