(1) Lymphoedema — Swelling: Correct. Lymphoedema is a condition of localised fluid retention and tissue swelling caused by a compromised lymphatic system.
(2) Lymphangitis — Inflammation in lymph vessels: Correct. It is the inflammation of the lymphatic vessels.
(3) Lymphadenitis — Inflammation in lymph glands: Correct. This refers to swollen and inflamed lymph nodes, often due to infection.
(4) Lymphoma — Filariasis: Incorrect. Lymphoma is a type of cancer affecting the lymphatic system, while Filariasis is a parasitic disease caused by thread-like filarial worms, often leading to swelling (elephantiasis), but not lymphoma.