Colo-Colonic Intussusception Caused by Lipoma

Wulff, C H; Jespersen, N.

doi:10.1080/02841859509173412

Cited by 9 publications

(5 citation statements)

References 6 publications

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“…The pathogenic finding of lipoma upon barium enema is a "squeeze sign," that is, the lipoma changes shape with palpitation, position of patient, and peristalsis (10,12). 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.…”

Section: Discussionmentioning

confidence: 98%

Intussuscepted Sigmoid Colonic Lipoma Mimicking Carcinoma

et al. 2006

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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-

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Section: Discussionmentioning

confidence: 98%

Intussuscepted Sigmoid Colonic Lipoma Mimicking Carcinoma

et al. 2006

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“…CT scans of colonic lipomas can provide a definite diagnosis because the mass typically has characteristic fatty densitometric values [18,19] . On CT, lipomas appear ovoid or pear shaped, with sharp margins and absorption densities of -40 to -120 Hounsfield units, typical of fatty composition [20,21] . However, these features are evident only in large lesions, as smaller tumors are not detectable due to artifacts and partial volume averaging [22] .…”

Section: Discussionmentioning

confidence: 99%

Cecal lipoma with pseudomalignant features: A case report and review of the literature

Katsinelos¹,

Chatzimavroudis²,

Zavos³

et al. 2007

WJG

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Colonic lipoma is a well-documented benign neoplasia, endoscopically appearing as a smooth round yellowish polyp with a thick stalk or broad-based attachment. We describe a 63-year old woman with persistent abdominal pain, in whom colonoscopy revealed a cecal mass with malignant features. Based on the colonoscopy findings, right hemicolectomy was laparoscopically performed for a presumptive diagnosis of a cecal adenocarcinoma, but histological examination revealed a colonic lipoma with overlying mucosal ulceration.

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“…Sonography may also be useful in the diagnosis, particularly in the hands of skilled and experienced operators. 4,5 Because of its low cost, easy applicability, and versatility, it may allow quick assessment of patients, even at the bedside. The applicability of sonography at the bedside increases its importance in critically ill patients.…”

Section: Discussionmentioning

confidence: 99%

Sonographic Findings of Colonic Lipoma Causing Intussusception

Karaosmanoğlu

Temízöz

Karçaaltıncaba

et al. 2007

Journal of Ultrasound in Medicine

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ipomas are common gastrointestinal (GI) tract lesions, predominantly in the colon. They are rarely symptomatic and are incidentally detected at colonoscopy, cross-sectional imaging, and autopsy.1 They rarely cause symptoms, but their rate of detection has gradually increased with the widespread use of radiologic studies.In most symptomatic patients, the clinical findings are due to large-bowel obstructions secondary to intussusception. Computed tomography (CT) is one of the first imaging studies to be performed and the workhorse of emergency abdominal imaging in patients with bowel obstruction, and the diagnosis is not generally problematic in patients with complicated colonic lipomas. Sonography is also a widely applied imaging modality in emergency settings, and the diagnosis of GI tract lipomas is highly probable in skilled hands.In this report, we describe the sonographic imaging findings of a patient with a symptomatic colonic lipoma who came to the emergency department with obstructive bowel symptoms.Received June 27, 2007, Case ReportA 44-year-old woman came to the emergency department with the chief symptoms of abdominal pain and distension for the previous 12 hours. Physical examination findings were positive for abdominal tenderness and a lack of bowel sounds in all 4 quadrants. Examination findings of the other organ systems were unremarkable. Upright abdominal radiography showed distended small-and large-bowel segments, although no free intraperitoneal air was detected. The patient's history was unremarkable except for intermittent colicky abdominal pain followed by spontaneous improvement in the previous 2 years, but this occurrence was the most painful and without relief. Abdominal sonography revealed a large hyperechoic solid lesion in the supraumbilical portion of the abdomen, leading to intussusception in addition to dilated bowel segments (Figure 1). On a transverse section,

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Colo-Colonic Intussusception Caused by Lipoma

Cited by 9 publications

References 6 publications

Intussuscepted Sigmoid Colonic Lipoma Mimicking Carcinoma

Intussuscepted Sigmoid Colonic Lipoma Mimicking Carcinoma

Cecal lipoma with pseudomalignant features: A case report and review of the literature

Sonographic Findings of Colonic Lipoma Causing Intussusception

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