The term neighborhood association is sometimes incorrectly used instead of homeowners association (HOA). But neighborhood associations are not homeowners associations (HOA). A HOA is a group of property owners with the legal authority to enforce rules and regulations that focus on restrictions and building and safety issues. On the other hand, a neighborhood association is a group of neighbors and business owners who work together for changes and improvements such as neighborhood safety ...
Lymphoma is a group of cancers that affect the cells that play a role in the immune system and primarily represents cells involved in the lymphatic system of the body. 1  The lymphatic system is part of the immune system. 2  Lymph nodes are small collections of lymph tissue that occur throughout the body.
The B-cell lymphomas are types of lymphoma affecting B cells. Lymphomas are blood cancers in the lymph nodes. They develop more frequently in older adults and in immunocompromised individuals. B-cell lymphomas include both Hodgkin's lymphomas and most non-Hodgkin lymphomas. They are typically divided into low and high grade, typically corresponding to indolent (slow-growing) lymphomas and aggressive lymphomas, respectively.