title: Aberrant thymus tissue in rat and mouse thyroid.
mesh_terms: D000818:Animals; D051379:Mice; D008853:Microscopy; D051381:Rats; D013194:Staining and Labeling; D013950:Thymus Gland / Q000166:cytology / Q000196:embryology* / Q000276:immunology; D013961:Thyroid Gland / Q000196:embryology*