Figure 2.

Histological Analysis. (A) Low-power (×100) micrograph showing pigment accumulation in an interstitial peribronchovascular distribution. (B) Higher-power (×200) view showing pigment in the interstitium around the airway; the alveolar air spaces are empty. (C) High-power (×400) view showing the 'golden granules' of haemosiderin.