Inflammatory myoglandular colorectal polyps: a case series of nine patients.
Inflammatory myoglandular polyp is an uncommon benign colorectal polyp. We treated nine cases of histologically verified inflammatory myoglandular polyp. The polyps were identified as a pedunculated protrusion located in the distal part of the large intestine. On colonoscopy, eight polyps had a smooth, spherical, and hyperemic surface, accompanied by a patchy mucous exudate. Magnification endoscopy revealed a rugged surface composed of smooth nodules. These colonoscopic findings corresponded to hyperplastic glands with occasional cystic dilation and inflamed stroma with proliferation of smooth-muscle fibers. Inflammatory myoglandular polyp appears to be a distinctive clinical entity, with a unique appearance on colonoscopy.
Moriyama
T
T
Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan. morimori@intmed2.med.kyushu-u.ac.jp
Matsumoto
T
T
Hizawa
K
K
Tada
S
S
Fuchigami
T
T
Iwai
K
K
Yao
T
T
Iida
M
M
D000328:Adult; D000368:Aged; D003111:Colonic Polyps / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012002:Rectal Diseases / Q000175:diagnosis / Q000473:pathology / Q000601:surgery