title: Annular nucleolus in Leydig cells of mouse.
mesh_terms: D000818:Animals; D001835:Body Weight; D002454:Cell Differentiation; D002466:Cell Nucleolus; D002467:Cell Nucleus; D004721:Endoplasmic Reticulum; D002479:Inclusion Bodies; D007985:Leydig Cells / Q000166:cytology*; D008297:Male; D051379:Mice; D008853:Microscopy; D008854:Microscopy, Electron; D012270:Ribosomes