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- W2081567669 abstract "Background: Various histopathological changes have been observed following neoadjuvant chemotherapy in individual tumors in the literature. Aims and Objectives: To observe histopathologic changes seen after neoadjuvant chemotherapy in breast malignancies, squamous cell carcinomas, adenocarcinomas, and Wilms′ tumor using breast cancer predominantly as the model. Materials and Methods: The present prospective study was carried out on 60 patients including 40 patients with carcinoma breast and 20 patients with other malignancies who received neoadjuvant chemotherapy. Results: Post neoadjuvant chemotherapy, mastectomy specimens revealed nuclear enlargement, nuclear shrinkage, necrosis, vacuolation of nucleus, vacuolation of cytoplasm, dyscohesion, and shrinkage of tumor cells with nuclear changes of nonviability like karyorrhexis, karyolysis, and pyknosis. Stromal reactions manifested as fibrosis, elastosis, collagenization, hyalinization, microcalcification, and neovascularization. Areas of necrosis included both vascular and avascular pattern. The stroma also revealed fibrinoid necrosis and mucinous change. Hyalinization of the blood vessel wall was a common finding. The most common inflammatory host response observed in the present study was lymphocytic; others included mixed inflammation, plasmacytic, prominent histiocytic, and giant cell types. Giant cell reaction was significantly correlated to all types of tumor responses (P < 0.05). Similar changes were also observed in other malignancies. A detailed review of the literature has also been done and presented. Conclusion: The tumor grade decreases and differentiation improves, in addition to the retrogressive changes and increase in stromal component, as a result of chemotherapy in carcinoma breast as well as in other malignancies." @default.
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- W2081567669 date "2012-01-01" @default.
- W2081567669 modified "2023-09-26" @default.
- W2081567669 title "Histopathologic changes following neoadjuvant chemotherapy in various malignancies" @default.
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- W2081567669 doi "https://doi.org/10.4103/2229-516x.106353" @default.
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