A surface ultrastructure study of ganglia and digital mucous cysts

Utilisation d'un lambeau bilobé pour le traitement des kystes mucoïdes juxta-unguéaux

“…Si leur origine exacte a longtemps été discutée, l'hypothèse actuellement la plus probable est que les kystes mucoï-des proviennent d'une zone de dégénérescence mucoïde capsulaire située entre le tendon extenseur et le ligament latéral [1][2][3] ; formés d'une paroi conjonctive, ils présentent une fine membrane interne peu cellulaire (cellules mésenchymateu-ses multifonctionnelles) qui serait responsable de la sécrétion de mucine [4], et pour certains auteurs [5,6] une communication entre l'articulation et le kyste est presque constamment retrouvée, évoquant l'existence d'un système valvulaire. Le facteur déclenchant cette dégénérescence mucoïde demeure inconnu [2].…”

The rhomboid flap: a simple technique to cover the skin defect produced by excision of a mucous cyst of a digit

“…5 The cysts are subcutaneous but the overlying skin is usually thin and occasionally may be ulcerated. In an undamaged specimen the attenuated skin of the cyst comprises thinned dermis and epidermis with numerous satellite ducts or lakes filled with mucinous material which must be removed to avoid recurrence.…”

Treatment of Mucous Cysts of the Toes

“…They do not fluctuate in size (although they may regress spontaneously) and they tend to cause thinning of the overlying skin. 1,3 -7,12, 13 Many methods have been proposed for the treatment of mucous cysts in the hand. These include needle aspiration and puncture, electrical and chemical cautery, cryotherapy, injection of steroids or sclerosing agents, and irradiation.…”

“…Histologically they appear similar to ganglia with a stalk leading from the joint capsule. 3,6,12,13 This finding has led to more aggressive surgical treatments in the hand to reduce the high recurrence rate associated with simple incision and drainage (50%), local excision (30%), and complete excision with rotational skin flap (5 -10%). 3,6,8,10 -12 Two studies have reported on the results of surgical treatment of lesions affecting the toes.…”