Fig. 13.

Granulomatous mastitis: a 30-year-old woman, postpartum, presenting with erythema, skin thickening and draining sinus. Grey-scale ultrasound image (a, b) showed irregular hypoechoic mass with peripheral vascularity. Biopsy was performed; high power image (40×) (c) showed non-necrotising granulomas, lymphocytes and plasma cells in the background. Special stains for fungus and mycobacterium were negative. Follow-up after conservative treatment and steroids were done. The follow-up ultrasound image (d) revealed significant improvement. Findings were consistent with granulomatous mastitis