A Pink Dome on the Digit: Diagnostic Clues to a Digital Myxoid Cyst

A 74-year-old female presented with a solitary, dome-shaped, translucent nodule on the distal phalanx of the right index finger, which was asymptomatic except for an occasional pain [Figure 1]. Dermoscopy revealed pink to translucent background, with bright white areas, and a peripheral arrangement of arborizing and short curved linear vessels, findings which are characteristic of a digital myxoid cyst [Figure 2]. On needle puncture followed by gentle pressure, a gelatinous mucinous material admixed with blood extruded from the lesion. Complete surgical excision was performed for diagnosis and treatment. This represents a classic example of a deceptively simple lesion of digital myxoid cyst with distinctive dermoscopic features. These benign mucin-rich lesions may communicate with underlying osteoarthritic joints and compress the nail matrix.[1]Figure 1: Solitary, dome-shaped, translucent nodule on the distal phalanx of the right index fingerFigure 2: Dermoscopic image revealing a pink to translucent background, with bright white areas, and a peripheral arrangement of arborizing vessels (yellow asterisk) and short curved linear vessels (blue asterisk) [Dermlite DL5, 10×]Authors’ contributions The manuscript has been read and approved by all authors. All authors meet authorship criteria and the manuscript represents honest work. Declaration of patient consent The authors certify that they have obtained all appropriate patient consent forms. In the form the patient has given her consent for her images and other clinical information to be reported in the journal. The patient understands that her name and initials will not be published and due efforts will be made to conceal her identity, but anonymity cannot be guaranteed. Financial support and sponsorship Nil. Conflicts of interest There are no conflicts of interest. Use of artificial intelligence (AI) The preparation of this manuscript was carried out entirely by the authors without the use of artificial intelligence technologies.