Glomus tumors of the left hallux and right thumb: a rare case report.

Glomus tumors commonly manifest as solitary, painful digital nodules. The synchronous occurrence in both a hallux and a thumb is exceedingly rare. We report a 35-year-old woman with subungual glomus tumors in her left hallux and right thumb, diagnosed through clinical evaluation and high-resolution ultrasonography. A novel nail-preserving technique, "tripartite zonal localization and excision," was employed. This involved transverse reflection of the nail plate for complete tumor excision under microscopic guidance. The procedure achieved complete pain resolution and satisfactory nail regrowth without recurrence. This case highlights the potential for multifocal glomus tumors and introduces a surgical technique that optimally balances complete excision with excellent functional and cosmetic results.