case_images: PMC10020937_01
case_images: Tender flesh-colored nodule with lichenification of the right 3rd finger hyponychium/distal tip.
case_images: cde-2023-0015-0001-529568_f1.jpg
case_images: PMC10020937_01_cde-2023-0015-0001-529568_f1.jpg
case_images: F1
case_images: Physical examination revealed a tender lichenified flesh-colored nodule involving the distal right 3rd finger and hyponychium (Fig. 1).
case_images: a Circumscribed neoplasm with myxomatous background matrix (H&E. x20). b Suspended in basophilic material were singly disposed epithelioid round cells arranged in single cells and cords (H&E. x200). c Distinct monocytoid cells, with oval-reniform-shaped nuclei eccentrically disposed with lightly eosinophilic cytoplasm (H&E. x400).
case_images: cde-2023-0015-0001-529568_f2.jpg
case_images: PMC10020937_01_cde-2023-0015-0001-529568_f2.jpg
case_images: F2
case_images: Cytoplasm of both the rounded and spindled cells was abundant and eosinophilic (Fig. 2).
case_images: Tumor cells stained positively for EMA (DAB. x200), CD34 (DAB. x200), and P63 (DAB. x200).
case_images: cde-2023-0015-0001-529568_f3.jpg
case_images: PMC10020937_01_cde-2023-0015-0001-529568_f3.jpg
case_images: F3
case_images: Only rare cells exhibited nuclear staining for Ki-67 (Fig. 3).