title: Distinguishing lymphoma and small cell anaplastic carcinoma of the thyroid by immunocytochemistry.
mesh_terms: D018288:Carcinoma, Small Cell / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D008223:Lymphoma / Q000175:diagnosis*; D013964:Thyroid Neoplasms / Q000175:diagnosis*