Iatrogenic intratendinous ganglion cyst of the extensor digitorum tendon following intravenous cannulation

Abstract

Peripheral venous cannulation is one of the most commonly performed medical procedures in hospital medicine. The dorsal metacarpal veins are typically used for cannulation as they are easily accessible. We present the first case of an iatrogenic intratendinous ganglion cyst of the extensor digitorum tendon of the middle finger following intravenous cannulation.

Intratendinous Ganglion Cyst of the Hand: A Case Report and Review of the Literature

“…The initial search revealed 36 records, and nine articles were included in the review ( Figure 3 ). One article was level IV evidence [ 8 ] and eight articles level V [ 1 – 7 , 9 ]. The same independent investigators extracted data from the studies for the final descriptive data synthesis.…”

“…Ten studies, including our case, revealed 18 patients with 22 intratendinous hand ganglia ( Table 1 ) [ 1 – 9 ]. Women are affected more frequent than men (75% Vs 25%).…”

“…It is worth noting that 18 out of 19 patients had an age between 43 and 66 yrs (94.5%), and only one patient was 71 yrs old. Regarding the tumor location, the vast majority was appeared in extensor tendons (18 cases, 82%) [ 1 , 2 , 4 – 9 ]. Apart from EDC (14 cases) [ 1 , 4 , 5 , 7 , 8 ], the ganglion cysts were affected by the extensor pollicis longus (EPL) (2 cases) [ 5 , 6 ] and the extensor pollicis brevis (EPB) (2 cases) [ 2 , 9 ].…”

“…Intratendinous ganglion of the hand is a very rare entity, and only few cases have been reported so far in the literature [ 1 – 9 ]. The pathogenesis behind the intratendinous ganglion formation is still obscure, and various theories have been suggested [ 3 ].…”

“…The pathogenesis behind the intratendinous ganglion formation is still obscure, and various theories have been suggested [ 3 ]. It is believed that ganglion cysts may arise “internally” from mucoid degeneration of the tendon ground substance, forming cavities full of viscous fluid, or “externally” as the result of tendon invasion by tenosynovitis [ 1 , 2 , 7 , 9 ]. Despite its benign character, the lesion can be locally aggressive and impair tendons and hand function.…”