LAB OSE Papillary carcinoma of thyroid Thyroid Cytology Powdery chromatin Pseudo inclusion Nuclear groove Nucleolus Nuclear crowding Nuclear molding Sputum - Alveolar macrophage Respiratory Cytology Nuclear enlargement High N:C Multinucleation Nucleolus Vacuolated cytoplasm BAL - CMV Respiratory Cytology Nuclear enlargement High N:C Large eosinophilic intranuclear viral inclusions Prominent halo Metastatic papillary carcinoma of the thyroid Thyroid Cytology Psammoma body Powdery chromatin Nuclear crowding Nucleolus Nuclear grooves Intranuclear pseudo inclusion Bronchial washing - bronchial cells Respiratory Cytology Ciliated columnar cells Central located nucleus Cohesive sheets Small cell undifferentiated carcinoma Respiratory Cytology Nuclear molding Small cells Small to indistinct nucleoli Even, powdery chromatin No cytoplasm Medullary carcinoma of the thyroid Thyroid cytology Coarse chromatin Hyperchromatic Round or elongated nucleus Inconspicuous nucleolus Bronchial washing -...