Biopsy specimen of yolk sac tumor with<unk> , H&E stain<unk>  is a cellular structure seen by microscope in endodermal sinus tumors (yolk sac tumors) which are the most common testicular cancer in children.<unk><unk>  bodies are present in approximately 50% of these tumors, and if found are pathognomonic. They are named for Mathias-Marie<unk>  and Walter<unk>  who described them in the late nineteenth century.<unk> es are said to resemble a glomerulus. They have a mesodermal core with a central capillary, all lined by flattened layers of both visceral and parietal cells. Immunofluorescent stain may show eosinophilic hyalin-like globules both inside and outside the cytoplasm that contain AFP and alpha 1-antitrypsin.
Schiller–Duval body
Nissl body
Councilman body
Schaumann body
Heinz body
Hirano body
Verocay body
Aschoff body