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Transplantation:
Prostatic carcinoma implants on the greater omentum of
a dog (arrowheads).
Peritoneal mesothelioma in a calf. This malignant neoplasm
of mesothelial cells typically spreads across the serosal surfaces rather
than by haematogenous or lymphatic routes.
Scirrhous mammary adenocarcinoma (breast cancer) implanted
on the visceral pleura of the lung in a human. Cords of neoplastic cells
appear as basophilic lines (black arrows). These are surrounded by fibrous
tissue (red arrow). The malignancy had metastasised via lymphatics to
the lungs and then penetrated the pleura. Note that there is minimal invasion
of the underlying lung by the neoplastic tissue.
Peritoneal carcinomatosis due to implantation of an
exocrine pancreatic carcinoma in a dog. Pale nodules of tumour are also
implanted on the surface of the spleen (yellow arrow).
Transplantaion case:
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