. Author manuscript; available in PMC: 2015 Apr 1.

Published in final edited form as: Am J Surg Pathol. 2014 Apr;38(4):437–447. doi: 10.1097/PAS.0000000000000169

Table 2.

Clinicopathologic Features of Small Cell and Large Cell Subtypes

	Small Cell (n=17, 39%)	Large Cell (n=27, 61%)

Mean Age (range)	57.5 (21–82)	60.4 (29–79)
Male:Female	0.9	1.9
Tumor Location
Head	12	15
Body	1	2
Tail	3	8

Median Tumor Size (cm) (range)	3.5 (2.3–18)	4 (2–14.5)

*Mitoses/10HPF^(range)**	51 (21–92)	37 (21–83)

Ki67 Labeling Index (range)	75% (50–98%)	66% (40–95%)

T Stage
T1	0	1
T2	1	1
T3	12	20

Only Lymph Node Metastasis at Presentation	10	16

Any Metastasis at Presentation
Present	14	23
Absent	2	3

Median Survival (Months) (95% CI)	6 (5, 20)	16 (11, 18)

2-year DSS^**	24.2% ± 11.7%	22.2% ± 8.7%

5-year DSS^**	16.2% ± 10.2%	16.6% ± 8.1%

HPF High power field

^**

DSS disease-specific survival (expressed as mean ± standard error)