Nwadiokwu , J.; Okebalama, V.; Olayemi , R.; Omokore, O.; Joe-Ikechebelu , B.; Duru , H.; Nwudele, U.; Okoawoh, A.; Sunday, O.; Manzoor, A. A Rare Case of Poorly Differentiated Neuroendocrine Carcinoma of the Descending Colon With Regional Lymph Node Involvement Presenting in a Young Adult Nigerian Male: A Case Report. Niger Med J 2025, 65, 1160-1170.