Spontaneous pathological complete regression of high-grade triple-negative breast cancer with axillary metastasis

Autor: László Markó, Gábor Cserni, Orsolya Serfozo, László Krenács, Éva Ambrózay
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Polish Journal of Pathology, Vol 70, Iss 2, Pp 139-143 (2019)
ISSN: 2084-9869
1233-9687
Popis: We report on a breast carcinoma with medullary features diagnosed by core needle biopsy in a 72-year-old woman. Both the primary tumour and its fine needle aspiration-proven, rapidly growing axillary metastasis regressed completely in less than 2 months, by the time surgery was performed. The biopsy of the primary tumour demonstrated a dense stromal infiltrate of CD8+/granzyme B+ activated cytotoxic T-cells suggestive of a robust antitumour immune response. Paradoxically, both tumour cells and tumour infiltrating immune cells demonstrated a diffuse PD-L1 expression, revealing that antitumour immune response has the ability to spontaneously overcome inhibitory mechanisms induced by cancerous growth.
Databáze: OpenAIRE