Here is a selection of new images from our free, online textbook:
Placenta > Exaggerated placental site
High power image of mononucleate and multinucleate intermediate trophoblasts containing abundant eosinophilic cytoplasm with hyperchromatic and irregular nuclei.
Contributed by Raavi Gupta, M.D. and Absia Jabbar, M.D.
Soft tissue > Inflammatory myofibroblastic tumor
Loosely arranged spindle cells growing in haphazardly arranged fascicles, interspersed by abundant chronic inflammatory cells (400x).
Contributed by Carina Dehner, M.D., Ph.D.
Thyroid & parathyroid > Langerhans cell histiocytosis
Thyroid gland, Langerhans cell histiocytosis: histiocytes with convoluted, folded nuclei and pale eosinophilic cytoplasm.
Contributed by Somboon Keelawat, M.D. and Jijgee Munkhdelger, M.D., Ph.D.
Appendix > Well differentiated neuroendocrine tumor
Low power image showing nested growth of tumor cells.
Contributed by Kwun Wah Wen, M.D., Ph.D.
Liver & intrahepatic bile ducts > Cirrhosis
Cut surface of a macronodular cirrhotic liver with multiple regenerative nodules.
Contributed by Anthony W.H. Chan, M.B.Ch.B.