a: Eosinophilic conspicuous nucleoli (case 1). b: Fine granular chromatin (case 4). c: Round/oval nuclei (case 4). d: Naked nucleus-like cells (case 3). e: Abundant translucent cytoplasm (case 3). f: Sheet-like arrangement (case 4). g: Hobnail/peg-shaped appearance (case 1). h: Basement membrane-like substance (case 2). i: Mirror ball cluster (case 4).

Figure 1: Cytological findings in Papanicolaou-stained smears (original objective magnification: 40x).