It is probable that the true nature of synovial lesions of the skin was first discovered by Sidney Jones and G. H. Makins1 of London, but it is to the late James Nevins Hyde2 that the general profession is indebted for a classical description of the disorder. In the first edition of his treatise on diseases of the skin, he states that lesions of this type
Occur in the form of wart-like projections from the skin, pseudovesicles, and bullae, always over the sites of bursae connected with tendons, traversing the small articulations of the hand and foot. They are seen over the metatarsophalangeal articulations; and in the hand most frequently over the dorsal face of the articulation between the distal and adjacent phalanges of the index finger and thumb. The first form is that of a roundish, corneous, pea-sized wart with a yellowish center, of long duration, usually