Mesenteric lipoma: report of a case with emphasis on US findings

Sato, Michiko; Ishida, Hideaki; Konno, Kunihiko; Komatsuda, Tomoya; Naganuma, Hiroko; Segawa, Daisuke; Watanabe, Sumio; Ishida, J.

doi:10.1007/s003300101026

Cited by 33 publications

(30 citation statements)

References 8 publications

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“…3) [12]. These findings are non-specific and may also be seen in various other conditions with mesenteric involvement, such as mesenteric lipomatous tumors [13]. CT is therefore always recommended to analyze any US-found mesenteric abnormalities.…”

Section: Us Featuresmentioning

confidence: 97%

Mesenteric panniculitis: US and CT features

Vriesman

Schuttevaer

Coerkamp³

et al. 2004

Eur Radiol

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Mesenteric panniculitis is an aseptic inflammation of mesenteric fat. Before the age of ultrasonography (US) and computed tomography (CT), mesenteric panniculitis was rarely diagnosed, but today the disorder is more commonly encountered, often as an incidental imaging finding. Its exact cause remains unknown. This review illustrates the characteristic US and CT features of mesenteric panniculitis and discusses its differential diagnosis.

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Section: Us Featuresmentioning

confidence: 97%

Mesenteric panniculitis: US and CT features

Vriesman

Schuttevaer

Coerkamp³

et al. 2004

Eur Radiol

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“…Thin fibrous septa may be present within the lesion, and the color Doppler examination shows no intra or perilesional vascularization. Another typical characteristic of lipomas is their mobility when pressure is exerted on the abdomen with the US transducer [5].…”

Section: Discussionmentioning

confidence: 99%

Retroperitoneal lipomas: A case report

Byl

Cerica

Sala

2012

Journal of Ultrasound

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Lipomas are mesenchymal tumors characterized by the abnormal proliferation of adipocytes. We describe a case of retroperitoneal lipomas in a patient with chronic lymphatic leukemia, who was referred to our sonography unit for a regular (6-month) follow-up scan. She had no abdominal symptoms of note. The sonographic examination revealed two well-defined, hyperechoic, oval-shaped masses: the first situated between the posterior wall of the stomach, the duodenum, and the head of the pancreas; the second lying craniomedial to the left kidney. Neither of the masses exhibited intralesional vascularization on color Doppler imaging. Retrospective examination of previous CT scans revealed that the lesions had been present for the past 4 years. Their slow growth was consistent with the suspicion of retroperitoneal lipomas, and this diagnosis was confirmed by magnetic resonance imaging. CT and MRI are the imaging studies of choice for diagnosing retroperitoneal lipomas, but ultrasonography is ideal for the follow-up of these patients because it is repeatable and relatively low in cost.Sommario Il lipoma è un tumore ad origine mesenchimale, caratterizzato da un'abnorme proliferazione locale di cellule adipose. Presentiamo il caso di una paziente, affetta da leucemia linfatica cronica, giunta alla nostra osservazione per il follow-up semestrale, in assenza di sintomi addominali. All'esame ecografico abbiamo osservato la presenza di due formazioni iperecogene, a margini netti; una compresa tra la parete posteriore dello stomaco, duodeno e testa pancreatica e una posta cranialmente e medialmente rispetto al rene sinistro. L'indagine color Doppler ha evidenziato l'assenza di segnali vascolari intralesionali. Retrospettivamente abbiamo analizzato due TC precedenti, eseguite nel corso dei precedenti 4 anni, che hanno confermato l'ipotesi di lipomi retroperitoneali, per la lenta crescita mostrata. Una successiva risonanza magnetica confermava la diagnosi. La TC e la RM rappresentano gli esami di scelta per porre la diagnosi di lipoma retroperitoneale, tuttavia l'ecografia è l'esame ideale nel follow-up dei pazienti, considerando l'economicità e la ripetibilità di questa metodica. ª

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“…However, previous studies have reported cases of deep lipomas located in the thorax, mediastinum, chest wall and retroperitoneum. Cases of intraperitoneal lipoma are extremely rare (12,14,15).…”

Section: Fat-containing Tumors In the Pelvic Cavitymentioning

confidence: 99%

Pelvic tumors with normal-appearing shapes of ovaries and uterus presenting as an emergency (Review)

et al. 2012

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Abstract. Abdominal pain with an associated pelvic mass is a common problem in everyday practice. Concerns about ectopic pregnancy, torsion of an enlarged ovary or malignancy usually dominate the diagnostic evaluation. On physical and imaging examination, when a palpable painful mass is present in the pelvis and the two ovaries and uterus are detected in their normal anatomical locations, the content and origin of the lesions may be significant in narrowing the pre-operative differential diagnosis. Thus, the emergent pelvic indications discussed in this review should be considered. The causes of acute abdominal pain are few in number and therefore an accurate diagnosis may be most frequently made at the time of exploratory laparotomy. Contents1. Introduction 2. Ovarian fibroma 3. Fat-containing tumors in the pelvic cavity 4. Pedunculated myoma 5. Tumor within an accessory ovary 6. Pelvic hematoma 7. Other problems 8. Conclusion IntroductionAbdominopelvic pain with an associated pelvic mass is a common emergency. These patients create a management dilemma for most emergency physicians. This problem usually stems from the inability of the physical examination to reliably differentiate between a potential surgical problem (i.e., torsion of an enlarged ovary, pelvic abscess) and a non-surgical etiology (i.e., ovarian cyst, uterine myoma). Ultrasonograpy (US), magnetic resonance (MR) and/or computed tomography (CT) are the gold standard imaging modalities used to differentiate pelvic masses in female patients presenting with abdominopelvic pain as an emergency.Ovarian tumors and uterine myoma constitute the most common masses in the female pelvis (1,2). The torsion of enlarged ovaries is one of the most common surgical gynecological emergencies (1). The differential diagnosis includes twisted exophytic ovarian fibroma, pedunculated myoma, peritoneal lipoma and accessory ovary although it should be noted that these conditions rarely cause acute abdominopelvic pain. The purpose of this review was to summarize the differential diagnosis of pelvic masses associated with acute abdominal pain when normal-appearing ovaries and uterus are detected. Ovarian fibromaOvarian fibromas are the most commonly encountered subtype of sex cord-stromal tumors, accounting for 4-5% of all ovarian tumors (3-6). It is well known that MR imaging is useful in diagnosing ovarian fibromas, due to the characteristically low T1-and T2-weighted signal intensities of the tumors, caused by the presence of densely packed connective tissue (3-6). The main differential diagnosis of a solid adnexal mass with T2 hypointensity includes a uterine pedunculated myoma and an ovarian fibroma. In a retrospective analysis, crescentshaped ovarian tissue may be detected along the periphery of the tumor in approximately 50% of ovarian fibroma cases and a normal-appearing ovary closely attached to the tumor in certain lesions may be misdiagnosed as a subserosal leiomyoma (5-8). Thus, careful evaluation of the ipsilateral ovary may aid the differentiation between ova...

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Mesenteric lipoma: report of a case with emphasis on US findings

Cited by 33 publications

References 8 publications

Mesenteric panniculitis: US and CT features

Mesenteric panniculitis: US and CT features

Retroperitoneal lipomas: A case report

Pelvic tumors with normal-appearing shapes of ovaries and uterus presenting as an emergency (Review)

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