Retroperitoneal ganglioneuroma extending across the midline: MR features

Ichikawa, Tomoaki; Koyama, Akihiro; Fujimoto, Hajime; Honma, Mitsuo; Saiga, Toshio; Matsubara, Nagaki; Osuga, Yutaka; Arimizu, N

doi:10.1016/0899-7071(93)90006-9

Cited by 24 publications

(15 citation statements)

References 6 publications

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“…Dynamic study (f before gadolinium injection, g 40 s after injection, h 5 min after injection) confirms the progressive contrast uptake pattern was present in six of our cases, characterized by a delayed heterogeneous contrast uptake, resulting in an incomplete filling of the tumor without any centripetal characteristic. This pattern has already been reported by Ichikawa et al [3] who attributed this type of enhancement to the presence of abundant myxoid matrices, explaining the progressive accumulation of contrast medium in the extracellular space.…”

Section: Discussionsupporting

confidence: 52%

“…One particular feature, present in three of our seven cases, has also been reported [3,5], consisting of a tendency of the tumor to surround major blood vessels, resulting in absent or mild compromise of the lumen. It has to be noted that, in our series, this pattern never led to an incomplete surgical resection of the mass, since the wall of the vessels was not infiltrated by the tumor.…”

Section: Discussionmentioning

confidence: 81%

“…This pathologic characteristic may also explain, according to Ichikawa et al [3], the MRI appearance of ganglioneuroma, which consists of a low signal intensity on T1-weighted images and inhomogeneous but marked high intensity on T2-weighted images. We have no explanation for the relatively moderate hypersignal of two of the three ganglioneuromas that we could explore with MRI, although abundant myxoid matrices were also noted at pathological examination.…”

Section: Discussionmentioning

confidence: 95%

“…Neuroblastoma is a neoplasm of high malignancy, ganglioneuroblastoma of an intermediate degree of malignancy. Ganglioneuromas are benign neoplasms, but 25 % of them have proved to contain poorly differentiated components such as ganglioneuroblastoma, neuroblastoma, or pheochromocytoma [1,2,3]. Retroperitoneum is the first or the second most common location of ganglioneuroma (32±52 %).…”

Section: Discussionmentioning

confidence: 99%

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Imaging of retroperitoneal ganglioneuroma

et al. 2001

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The aim of this study was to describe the radiological appearance of retroperitoneal ganglioneuroma. We retrospectively reviewed seven cases of histologically proven retroperitoneal ganglioneuroma. Ultrasound and enhanced CT were obtained in all cases, and MRI in three cases. The masses were well-circumscribed, ranged in size from 5 x 3 x 3 to 10 x 6 x 4 cm. In three cases close relationships between the tumor mass and major blood vessels were noted, resulting in vessel displacement or surrounding, but without compression or occlusion. On ultrasound examination the tumor showed a heterogeneous solid echostructure. Non-enhanced CT showed homogeneous or mildly heterogeneous low attenuation, and a punctate calcification was seen in one case. Contrast uptake was absent (n = 1) or delayed (n = 6). Progressive but incomplete enhancement was observed in three cases. On MRI, T2-weighted images showed a high signal intensity. Dynamic studies depicted the same enhancement pattern as described on CT. Ganglioneuroma is a rare tumor which should nevertheless be included in differential diagnosis of retroperitoneal masses when presenting as a well-delimited tumor with possible tendency to surround or displace major blood vessels, low density on non-enhanced CT, and delayed progressive enhancement on CT and MRI.

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Section: Discussionsupporting

confidence: 52%

Section: Discussionmentioning

confidence: 81%

Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

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Imaging of retroperitoneal ganglioneuroma

et al. 2001

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“…GNs may arise in any region of the paravertebral sympathetic plexus (1)(2)(3)(4), but are typically observed in the posterior mediastinum (39-43%) or the retroperitoneum (32-52%). By contrast, the neuromas rarely occur in the adrenal glands (5,6). The majority of patients with adrenal GNs (AGNs) do not exhibit any clinical symptoms.…”

Section: Introductionmentioning

confidence: 99%

Laparoscopic resection of primary adrenal ganglioneuroma: A case report and review of the literature

Zhou

Liang

et al. 2015

Oncology Letters

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Retroperitoneal ganglioneuroma: A report of diagnosis by fine-needle aspiration cytology

Yen¹,

Cobb²

1998

Diagn. Cytopathol.

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Ganglioneuroma is a rare benign tumor composed of nerve fibers and mature ganglion cells. Because it shares morphologic features with other neural tumors, both benign and malignant, accurate preoperative diagnosis is often difficult, but nonetheless, critical for proper management. The use of fine‐needle aspiration (FNA) cytology in the diagnosis of ganglioneuroma has been rarely documented. In this report, a 25‐yr‐old man presented with a large retroperitoneal ganglioneuroma that was initially diagnosed by FNA cytology. This case illustrates the utility of FNA cytology in the diagnosis of ganglioneuroma and supports the routine incorporation of FNA cytology in the evaluation of retroperitoneal masses. Diagn. Cytopathol. 1998;19:385–387. © 1998 Wiley‐Liss, Inc.

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Retroperitoneal ganglioneuroma extending across the midline: MR features

Cited by 24 publications

References 6 publications

Imaging of retroperitoneal ganglioneuroma

Imaging of retroperitoneal ganglioneuroma

Laparoscopic resection of primary adrenal ganglioneuroma: A case report and review of the literature

Retroperitoneal ganglioneuroma: A report of diagnosis by fine-needle aspiration cytology

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