title: Letter: Leydig tumor-cell rosettes.
mesh_terms: D000818:Animals; D002462:Cell Membrane / Q000276:immunology; D007104:Immune Adherence Reaction; D007984:Leydig Cell Tumor / Q000276:immunology*; D007985:Leydig Cells / Q000276:immunology; D008214:Lymphocytes / Q000276:immunology; D008297:Male; D051379:Mice; D051381:Rats