Mucous Cysts of the Fingers.

Summary. The condition of mucous cysts of the fingers has well‐defined clinical features and is due to mucoid change in the sub‐cutaneous tissues. 2. The condition is not “synovial” in the sense that the cysts are related to or communicate with joints. 3.Ganglia and synovial cysts are clinically distinguishable conditions. 4.Fundamentally the processes in the two conditions are similar but, though this is important pathologically, it should not be allowed to sustain the confusion which has arisen in the literature concerning what are, in their fully developed forms. distinguishable conditions. 5.Peri‐articular nodules may occur also in cystic form but are readily distinguishable by their site and structure. 6.Thus the three conditions which have been confused in the literature and which may become morphologically similar by synovial differentiation of their tissues are: (i)mucous cysts of the fingers, (ii) ganglion, (iii) peri‐articular nodules. Clinically they are readily distinguishable.