PMC7229418_01
(a) Islands of mucinous lakes infiltrating the stromal tissue (H&E stain, x40). (b) The infiltrating lakes of mucin and infiltrating tumour glands are also evident (H&E stain, x100).
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Microscopically, the tissue was infiltrated by a tumour which was richly composed of islands of mucinous lakes (Fig. 1a) and in other areas malignant glands (Fig. 1b) were evident.