How many letters does the top answer for “inflammation of the lymphatic vessels.” have?

The most common answer is lymphangeitis (13 letters).

Crossword clue: inflammation of the lymphatic vessels.

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

lymphangeitis 13 letters web-def

Inflammation of the lymphatic vessels. [Written also lymphangitis.]

inflammation of a blood vessel 50% similar → vasculitis

inflammation of a lymph vessel 50% similar → lymphangitis

within a lymphatic vessel. 50% similar → endolymphangial