PMC5829446_01
CT scan of the pelvis with (a) and without contrast (b) shows lesion on the anterior wall of the vagina, adjacent to the bladder (denoted by white arrow).
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fig1
An MRI revealed a lesion measuring 3.1 x 2.4 x 2.2 cm shown along the anterior wall of the vagina, adjacent to the base of the bladder (Figure 1).
Gross specimen of sling.
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fig2
Specimens of the mesh and surrounding mass were sent to pathology for evaluation (Figure 2).
(a) Large numbers of giant cells present in a fibroblastic background (H&E stain-intermediate power; denoted by black arrows). (b) Osteoid-like material in a fibrous background (H&E stain-intermediate power; denoted by black arrows). (c) Dystrophic calcifications (H&E stain-intermediate power; denoted by a black arrow). (d) Ingestion of foreign material by a giant cell (H&E stain-high power; denoted by a black arrow).
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fig3
Histologically, specimens demonstrated a marked fibroblast reaction with large numbers of giant cells (Figure 3(a)). Osteoid-like substance and dystrophic calcifications resembling bone formation were noted in one specimen (Figures 3(b) and 3(c)), and several giant cells were found to surround nonpolarizable foreign material (Figure 3(d)).