Table 2:
Differences in cytomorphological features on conventional CSs and LBC preparations.
| S. No. | Cytological diagnosis | Cytological features on CSs | Cytological features on LBC |
|---|---|---|---|
| 1. | Reactive lymphadenitis | Florid mixed maturing population of lymphoid cells against a hemorrhagic background | Clear background showing only maturing lymphoid cells with no blood in the background |
| 2. | Necrotizing granulomatous lymphadenitis | Epithelioid cell granulomas and Langhans giant cells against large areas of necrosis in the background | Clearer background, occasional scattered epithelioid cell granulomas and giant cells. No necrosis in the background |
| 3. | Neoplasms | Cytomorphological features and arrangements are easily appreciated on CSs. However, obscuration by blood or tumor diathesis may result in difficult interpretation | Nuclear details are better appreciated on LBC due to a cleaner background and monolayered sheets. In addition, it is easier to perform ancillary techniques like immunocytochemistry on LBC slides |
LBC: Liquid-based cytology, CS: Conventional smear