Fig. 4

Follow-up bronchoscopic findings after removal of the solitary bronchial myelolipoma. (a and b) Granulation tissue overgrowth suspected at the previous base of the solitary bronchial myelolipoma was found on follow-up bronchoscopy 3 months later and was removed by biopsy forceps. (c) Microscopic findings of the granulation tissue show proliferation of fibroblasts and blood vessels with inflammatory cell infiltration (H&E stain, × 100). (d) Follow-up bronchoscopy performed 12 months after tumor resection revealed scar tissue on the previous tumor bed but no tumor recurrence