Phymatous Rosacea - Rhinophyma

A 65-year-old male fisherman with a 15-year history of untreated rosacea presents with progressive nasal disfigurement and mild nasal obstruction. On examination, the nose is diffusely thickened, enlarged, and bulbous with a lobulated irregular surface and coarse pitted follicular ostia. The skin shows prominent sebaceous gland hypertrophy with thick yellowish sebum, multiple telangiectasias, and background erythema on the cheeks. There are no ulcerated nodules, pearly borders, or bleeding. The structure marked **B** in the diagram demonstrates these characteristic findings. Which of the following best describes the pathophysiology of this condition?