Tender Soft Tissue Mass on the Base of the Neck.

Abstract

A 47-year-old man presented with a tender soft tissue mass on the upper back with increasing discomfort over the last 4 weeks. He noted that he felt feverish a few times. Physical examination revealed a 3×4-cm area of induration involving the upper mid back with faint erythema of the overlying skin; no drainage was noted. A prominent left posterior cervical lymph node also was appreciated, and a punch biopsy of the mass was performed.