PMC5033499_01
MRI (T2 weighted) showing an enlarged irregular prostate gland and prostate-rectal fistula (white arrow).. Abbreviation: MRI, magnetic resonance imaging.
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A part of the prostate gland protruded to the bladder, and a fistula existed between the prostate and rectum (Figure 1).
Photomicrograph showing large numbers of foamy macrophages (black arrow) involved in the lesion (hematoxylin and eosin, x400).
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Moreover, fibroplasias can also be seen (Figure 2).
The histiocytes and giant cells show intense reactivity for CD68 (hematoxylin and eosin, x200).
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The immunohistochemical stains showed CD68 (+) (Figure 3) and PSA (-).