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Case Reports
. 2022 Sep 28;2022(9):rjac440.
doi: 10.1093/jscr/rjac440. eCollection 2022 Sep.

Colonic lipoma of the hepatic flexure causing invagination in an adult

Mauricio Fabian Palacios  1 , Alex Guachilema Ribadeneira  1 , Sandra Morocho Imbacuan  2 , Andrea Lisintuña Cisneros  1 , Andrea Daniela Basantes  3
Affiliations
Case Reports

Colonic lipoma of the hepatic flexure causing invagination in an adult

Mauricio Fabian Palacios et al. J Surg Case Rep. .

Abstract

Intussusception is a rare condition in adults that can lead to intestinal obstruction due to malignant or benign lesions in the wall of the colon. Among the benign causes, lipomas are adipose tissue tumors that are most frequently located in the ascending colon. Invagination is characterized by nonspecific symptoms and normal laboratory test results. The exact point of invagination can be detected using advanced imaging studies such as abdominal computed tomography and colonoscopy. Invagination is treated surgically. Here, we presented the case of a female patient with colo-colonic invagination caused by a large lipoma diagnosed by computed tomography who underwent right hemicolectomy with primary ileocolonic anastomosis.

Keywords: colonic intussusception; hemicolectomy; intestinal obstruction; lipoma of the colon.

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Figures

Figure 1
Figure 1
Computed tomography scan shows colo-colonic invagination with the ‘target sign’ or ‘doughnut sing’.
Figure 2
Figure 2
(A) The presence of an invaginating mass in the colon. (B) Colo-colonic intussusception involving the ascending colon, hepatic flexure and transverse colon.
Figure 3
Figure 3
Histopathology results showing an expansive growth pattern, with invasion of the muscularis propria and serosa and extension towards the pericolonic adipose tissue. Immunohistochemical results were negative for MDM2 and Ki67.
See this image and copyright information in PMC

References

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