50.0 MB (4.4 MB compressed)
4730 x 3695 pixels
40.1 x 31.2 cm ⏐ 15.8 x 12.3 in (300dpi)
WEBPATHOLOGY / SCIENCE PHOTO LIBRARY WEBPATHOLOGY / SCIENCE PHOTO LIBRARY
Hairy cell leukaemia, light micrograph. Histiocytic sarcoma is a malignant tumour with histiocytic differentiation. It shows a diffuse growth pattern with partial or total effacement of the native architecture by a proliferation of high-grade malignant cells resembling histiocytes. The degree of pleomorphism is variable and mitotic activity is increased. The background stroma contains small lymphocytes, plasma cells, eosinophils, and benign histiocytes.
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