Fungus

Fungus (Lat., 'a mushroom') is a term applied in pathology and surgery to exuberant granulations or ulcerating tumour-growthls when they project somewhat in the form of a mushroom above the surface of the skin or mucous membrane where they are situated. The conditions giving rise to this appearance occur especially in connection with the testicle and the brain. Tumours in which it occurs are frequently cancerous. The name also occurs in pathology in its true botanical sense; for Actinomycosis, Favus, Ringworm (q.v.), &c. are produced by parasitic fungi.