Diagnosis: Mucous cyst Mucous cysts are pseudocysts (cystic structures lacking a true lining) that usually appear on the middle or index finger of the dominant hand; toe involvement is uncommon ...

First described as “synovial lesions of the skin” by Markin and Jones in 1880 and by Hyde in 1883, 1-3 these cysts are known by various names, including mucoid cysts, mucous cyst of the finger ...