J Korean Soc Surg Hand.  2014 Dec;19(4):195-199. 10.12790/jkssh.2014.19.4.195.

Intratendinous Ganglion of the Extensor Digitorum Tendon

• Kwon C
• Cho SH
• Rhee SC
• Eo SR

• KMID: 1896909
• DOI: http://doi.org/10.12790/jkssh.2014.19.4.195

Abstract

Ganglion cyst is the most common benign tumor arising from the hand and wrist. Rarely, they are found within the tendon. To date, only 10 cases in English papers and 7 cases in domestic papers on ganglion cysts in extensor digitorum tendons have been reported. Due to the rarity of this entity, it is difficult to suspect intratendinous ganglion fully based on the physical examination. Accordingly, preoperative studies such as ultrasonography, magnetic resonance imaging are recommended when suspicious result is revealed on the physical examination. Treatment should include en bloc resection of the affected tendon to reduce recurrence. But functional loss always has to be considered. This study reports two cases of intratendinous ganglion cysts that arised from the second and fourth extensor digitorum tendon.

Keyword

Ganglions; Tendons; Extensor; Hand

MeSH Terms

Ganglion Cysts*
Hand
Magnetic Resonance Imaging
Physical Examination
Recurrence
Tendons*
Ultrasonography
Wrist

Figure

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  Fig. 1. (A) A ganglion in the second extensor digitorum tendon. (B) An excised ganglion and portion of the tendon. (C) Pathologic findings of resected ganglion. The specimen shows a thickened collagenous wall (arrow) containing mucoid substance (asterisk) (H&E, ×20).

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  Fig. 2. (A, B) ganglion in the fourth extensor digitorum tendon. (C) An excised fusiform ganglion. (D) A histologic examination reveals characteristic fibrous tissue wall without a synovial lining (H&E, ×20).

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