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Inflammatory Myoglandular Colonic Polyp with Adenomatous Changes Mimicking Malignant Tumor

 

Inflammatory Myoglandular Colonic Polyp with Adenomatous Changes Mimicking Malignant Tumor

Sneha R Adidam1, Seenath M2 and Chalapathi R Adidam Venkata3*

1Resident Internal Medicine, Howard University Hospital, Washington DC, USA
2Consultant Surgeon, Eric Williams Medical Sciences Complex, Trinidad, WI
3Professor of Pathology, University of the West Indies, Trinidad, WI

*Corresponding author: Chalapathi Rao Adidam Venkata, Professor of Pathology, UWI, St. Augustine, Trinidad, West Indies, E-mail: avcraouwi@gmail.com

Received: August 30, 2021; Accepted: September 09, 2021; Published: September 17, 2021

Citation: Adidam SR, Seenath M, Adidam Venkata CR, et al. Inflammatory Myoglandular Colonic Polyp with Adenomatous Changes Mimicking Malignant Tumor. Clin Image Case Rep J. 2021; 3(8): 182.

.Abstract

Inflammatory myoglandular polyps (IMGPs) are rare intestinal polyps that occur frequently in the left colon and may present with hematochezia. Only a small number of cases have been reported in the right colon (2%). We present a case of IMGP in the proximal ascending colon. A 46-year-old woman of mixed ethnicity presented with a history of abdomino-pelvic pain and constipation. CT scan suggested possibility of malignancy. On colonoscopy, a non-obstructive polyp in proximal ascending colon was biopsied followed by right hemicolectomy. Patient also underwent total abdominal hysterectomy at the same time for fibroids. The colonic polyp revealed features of IMGP with focal adenomatous changes. The polyp was characterized by epithelial erosion, inflamed granulation tissue, hyperplastic and dilated glands, and proliferating smooth muscle. IMGP needs to be distinguished from other non-neoplastic colonic polyps, which includes Peutz-Jeghers polyps, inflammatory pseudopolyps, juvenile polyps, and inflammatory fibroid polyps. We report a large sized inflammatory myoglandular polyp with suspicious imaging findings and presence of adenomatous changes that mimicked malignancy that requires comprehensive evaluation and follow up.

Keywords: Inflammatory myoglandular polyp; Adenomatous changes; Non-neoplastic; Malignancy

https://www.literaturepublishers.org/archive/Inflammatory-Myoglandular-Colonic-Polyp-with-Adenomatous-Changes-Mimicking-Malignant-Tumor.html

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