Intussuscepted colonic lipomas: loss of fat attenuation on CT with pathologic correlation in 10 cases

Buetow, P C; Buck, J L; Carr, Norman J.; Pantongrag-Brown, Linda; Ros, Pablo R.; Cruess, David F.

doi:10.1007/s002619900033

Cited by 55 publications

(30 citation statements)

References 9 publications

(22 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…On CT, lipomas appear ovoid or pear shaped, with sharp margins and with absorption densities of -40 to -120 houns field units, typical of fatty composition (13)(14)(15). Not all intussuscepted lipomas are characterized by homogeneous low attenuation on CT, and a study by Buetow and colleagues (16) showed that they might be mistaken for other neoplastic causes of intussusception such as adenocarcinoma, lymphoma, and metastasis. The changes in CT attention were directly related to the degree of infarction and fat necrosis seen within the lipoma, but the size and location of the intussuscepted lipoma were otherwise unrelated to CT findings.…”

Section: Discussionmentioning

confidence: 97%

Intussuscepted Sigmoid Colonic Lipoma Mimicking Carcinoma

et al. 2006

View full text Add to dashboard Cite

KEY WORDS: intussusception; sigmoid lipoma; mimicking carcinoma.Colonic lipomas are the most common nonepithelial tumor, and they are the third most common tumor, after hyperplastic and adenomatous polyps (1). The majority of colonic lipomas are small and asymptomatic (2). Large lesions may be significant because of their related symptoms, and especially, intussuscepted colonic lipomas are often confused with malignant tumors, so that most of them are diagnosed after intervention (3). We present a case of an intussuscepted lipoma mimicking a malignant tumor in a 62-year-old man. Intussuscepted colonic lipoma is uncommon, and a right-side intussuscepted colonic lipoma is especially rare. The malignant transformation of lipoma is extremely rare, and recurrent lipoma has never been reported. Nonetheless, operative or endoscopic intervention may be required to differentiate this lesion from a malignant or premalignant lesion. This case is very unique in the aspects of the lipoma's shape and size and the location in which it was found. CASE REPORTA 62-year-old man was admitted to the hospital because of left lower quadrant abdominal pain that had lasted for 1 month, with intermittent hematochezia. The patient said he did not have any fever or weight loss. Upon physical examination, he had pale conjunctiva, and there was left lower quadrant tenderness without rebound tenderness. There was also a relatively highpitched sound on abdominal examination. The rectal examination showed dark blood-tinged stool. The other findings from the physical examination were normal. The results of laboratory investigation, including the level of carcinoembrionic anti-

show abstract

Section: Discussionmentioning

confidence: 97%

Intussuscepted Sigmoid Colonic Lipoma Mimicking Carcinoma

et al. 2006

View full text Add to dashboard Cite

show abstract

“…En général, ils sont de petite taille et asymptomatiques [1]. Cependant, une minorité parmi eux peut être symptomatique et la fré-quence des symptômes est directement corrélée à la taille du lipome quand il est supérieur à 2 cm [3][4]. Nous venons d'en rapporter deux cas symptomatiques de localisation transverse et angulaire gauche.…”

Section: Discussionunclassified

“…Néanmoins, des images scannographiques atypiques liées à une composante nécro-tique du lipome, favorisée par l'invagination de ce dernier, ont été rapportées. Il peut alors être difficile de le différen-cier d'une tumeur maligne [3]. Pour nos patients, la TDM était suggestive du diagnostic et elle a permis de mettre en évidence l'invagination colocolique pour le deuxième cas.…”

Section: Discussionunclassified

Lipomes géants coliques

2010

View full text Add to dashboard Cite

“…Considering the age and symptoms of these patients, malignant tumors are also a matter of concern [11] . For the diagnosis, colonoscopy allows direct visualization of the submucosal lipoma, which appears as a mass covered by normal mucosa, but it can also show ulcerated or necrotic overlying mucosa [6,12,13] .Colonoscopic biopsy confirms the nature, but inadequate tissue samples often indicate nonspecific colitis with mucosal inflammation…”

Section: Discussionmentioning

confidence: 99%