Inflammatory Myoglandular Polyps: A Case Series of Four Patients and Review of the Literature

Table 1

Characteristics of inflammatory myoglandular polyp, juvenile polyp, and inflammatory fibroid polyp.

Polyp [references]	Color	Shape	Common site	Incidence of hematochezia	Incidence of blood in the stool	Histological findings
IMGP [8]	Red	Ip	Distal Colon	23%	29%	Inflammatory granulation
						Proliferation of smooth muscle
						Hyperplastic glands with cystic changes
Juvenile Polyp [13, 14]	Red	Ip	Distal Colon	100%	Not described	Cystic architecture
						Mucus-filled glands
						Infiltration of inflammatory cells
IFP [15, 16]	Red or covered with normal mucosa	Ip	Proximal Colon	14%	14%	Proliferation of fibroblasts
						Infiltration of inflammatory cells (plasma cells and eosinophils)

IMGP: inflammatory myoglandular polyp.
IFP: inflammatory fibroid polyp.