A Comparison of Treatments and Outcomes for Medullary versus Nonmedullary Colon Cancer: A Single Institutional Experience Showing a Worse Prognosis for Stage 3 Disease

Table 2

Treatments for MCC vs. NMC and MCC vs. PD/UD NMC.

	MCC	NMC	MCC vs. NMC	MCC vs. PD/UD NMC
	Total (n = 33)	Total (n = 1775)	PD/UD (n = 292)	valuea	valueb
Surgery				0.424	0.553
No surgery	2 (6.1%)	227 (12.8%)	32 (11%)
Surgery	31 (93.9%)	1544 (87%)	260 (89%)
Unknown	0	4 (0.2%)	0
Radiation				0.484	0.449
No	33 (100%)	1,749 (98.5%)	287 (98.3%)
Yes	0	26 (1.5%)	5 (1.7%)
Chemotherapy				0.529	0.008
None	27 (81.8%)	1,200 (67.6%)	157 (53.8%)
Neoadjuvant	0	13 (0.7%)	3 (1%)
Adjuvant	6 (18.2%)	547 (30.8%)	132 (45.2%)
Neoadjuvant + adjuvant	0	12 (0.7%)	0
Intraop with other therapies	0	3 (0.2%)	0

MCC, medullary colon cancer; NMC, nonmedullary colon cancer; PD, poorly differentiated; UD, undifferentiated.