Abstract
Digital mucous cysts are benign ganglion cysts of the digits typically located on the dorsal aspect of the interphalangeal joint and distal phalanx of the digits. Usually the clinical diagnosis is straightforward, though sometimes it may mimic other lesions and diagnosis becomes a challenge. We present a series of three digital mucous cysts with a repeatable dermoscopic pattern consisted of linear branched and serpentine vessels when no compression is applied and translucent aspect with white bright areas and loss of vascular pattern when compression is applied.
Highlights
Digital mucous cysts are benign ganglion cysts of the digits typically located at the distal interphalangeal (DIP) joints or in the proximal nail fold [1]
We present a series of three digital mucous cysts with a repeatable dermoscopic pattern consisted of linear branched and serpentine vessels when no compression is applied and translucent aspect with white bright areas and loss of vascular pattern when compression is applied
Polarized light dermoscopy without compression (Figure 1B) revealed flesh-colored aspect and linear branched and serpentine vessels originating from the periphery, while with compression (Figure 1C) the lesion turned more translucent with the presence of bright white structures and less prominent vascularization
Summary
Digital mucous cysts are benign ganglion cysts of the digits typically located at the distal interphalangeal (DIP) joints or in the proximal nail fold [1]. The clinical diagnosis is straightforward, though sometimes it may mimic other lesions and diagnosis becomes a challenge [2,3]. Dermatoscopy may be helpful in the clinical recognition of these benign lesions
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