Prominent meningeal enhancement adjacent to meningioma on Gd-DTPA-enhanced MR images: histopathologic correlation.

Tokumaru, Aya M.; O’uchi, Toshihiro; Eguchi, Tsuneyoshi; Kawamoto, Satomi; Kokubo, T; Suzuki, Mitsuaki; Kameda, Tomohiro

doi:10.1148/radiology.175.2.2326470

Cited by 124 publications

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“…10,14 Others argue that the DTS is mainly caused by the proliferation of connective tissue and dilation of blood vessels. 5,13 According to the present study, gross morphological observation of the DTS indicated that 14 (77.8%) cases were obviously accompanied by an invasion of tumor cells, whereas 34 (94.4%) dural specimens displayed tumor invasion, vascular proliferation, and dilation under microscope. The longest invasion distance reached 21.6 mm (Fig.…”

Section: Discussionsupporting

confidence: 49%

“…Wilms et al 14 found that the thickened dura is accompanied by an invasion of tumor cells and, for the first time, considered the DTS to be a marker for tumor invasion. In contrast to the study by Wilms and colleagues, Tokumaru et al 13 believed that the DTS was mainly caused by the proliferation of connective tissue and dilation of blood vessels. Although in some patients there was found to be dural invasion by tumor cells, the invasion was confined to only within 1 mm.…”

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confidence: 75%

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Application of contrast-enhanced T1-weighted MRI-based 3D reconstruction of the dural tail sign in meningioma resection

You

Cheng

Zhang

et al. 2016

JNS

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abbreviatioNs DTS = dural tail sign; T1W = T1-weighted. submitted November 4, 2014. accepted May 7, 2015. iNclude wheN citiNg Published online December 11, 2015; DOI: 10.3171/2015.5 obJective The goal of this study was to investigate the significance of contrast-enhanced T1-weighted (T1W) MRIbased 3D reconstruction of dural tail sign (DTS) in meningioma resection. methods Between May 2013 and August 2014, 18 cases of convexity and parasagittal meningiomas showing DTS on contrast-enhanced T1W MRI were selected. Contrast-enhanced T1W MRI-based 3D reconstruction of DTS was conducted before surgical treatment. The vertical and anteroposterior diameters of DTS on the contrast-enhanced T1W MR images and 3D reconstruction images were measured and compared. Surgical incisions were designed by referring to the 3D reconstruction and MR images, and then the efficiency of the 2 methods was evaluated with assistance of neuronavigation. results Three-dimensional reconstruction of DTS can reveal its overall picture. In most cases, the DTS around the tumor is uneven, whereas the DTS around the dural vessels presents longer extensions. There was no significant difference (p > 0.05) between the vertical and anteroposterior diameters of DTS measured on the contrast-enhanced T1W MR and 3D reconstruction images. The 3D images of DTS were more intuitive, and the overall picture of DTS could be revealed in 1 image, which made it easier to design the incision than by using the MR images. Meanwhile, assessment showed that the incisions designed using 3D images were more accurate than those designed using MR images (ridit analysis by SAS, F = 7.95; p = 0.008). Pathological examination showed that 34 dural specimens (except 2 specimens from 1 tumor) displayed tumor invasion. The distance of tumor cell invasion was 1.0-21.6 mm (5.4 ± 4.41 mm [mean ± SD]). Tumor cell invasion was not observed at the dural resection margin in all 36 specimens. coNclusioNs Contrast-enhanced T1W MRI-based 3D reconstruction can intuitively and accurately reveal the size and shape of DTS, and thus provides guidance for designing meningioma incisions.

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confidence: 49%

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confidence: 75%

Application of contrast-enhanced T1-weighted MRI-based 3D reconstruction of the dural tail sign in meningioma resection

You

Cheng

Zhang

et al. 2016

JNS

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“…NPC usually arises in the 1atera1 pharyngea1 recess, and can invade in al1 directions (13); it can invade superiorly into the crania1 cavity through severa1 anatomic routes including either bony apertures ofthe petroclinoid fissure, foramen 1acerum, foramen ova1e, carotid cana1 or jugu1ar fossa, or by direct bony invasion (12 -15). In this study, histopatho1gic findings agreed with those of a previous report (2) which claimed that the tai1s indicated not tumor spread a10ng the meninges but congestion of the venous p1exus along the greater wing of the sphenoid bone, clivus or tentorium cerebelli. In our patiens, the most common direction oftumor invasion was 1ateraL since the site at which NPC most frequent1y arises is the 1ateral pharyngea1 recess (14 -16), followed by the petro-cliva1 깨 extension.…”

Section: Discussionsupporting

confidence: 92%

Dural Tail Sign in MR Imaging of Nasopharyngeal Cancer

Lee

Kim

Choi

et al. 1997

J Korean Radiol Soc

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Purpose : To describe the dural tail sign in contrast-enhanced MR images of nasophary ngeal carcinoma (NPC).Materials and Methods : MR images of 19 consecutive patients, in whom three years previously squamous cell type NPC had been pathologically proven, were reviewed for the presence or absence, location and direction of the dural tail sign and the relationship between this sign and the skull base invasion. Histopathologic specimens obtained in two patients were also described .Results : 1n ten patients (53 %), there was bony invasion ofthe skull base; in sevenof these (37 %), dural tails were found. 1n seven, this tail extended along the floor of the middle cranial fossa; in 5, along the petro-clivus, and in 4, along the tentorium. 1n all these cases, the adjacent skull base was involved. Histopathologic examination in two patients with dural tails in the middle cranial fossa revealed fibrosis and hypervascularity ofthe dura mater without evidence oftumor cell infiltration.Conclusion : The dural tail sign appears to be not infrequent in patients with advanced NPC. The dural tail may be a good indicator ofintracranial tumor spread.Index Words : Nasopharynx, neoplasms Meninges, MRThe dural tail sign was first described by Wilms (1 씨 1) ， , thickening of the dura in continuity with convexity me 얹 ningioma 잃 s a 잃 s seen on contrast-enhanced MRI. . Tokuma consisted of histopat 산 ho 이 logica 떠 lly loose connective tissue, and showed hypervascularity and vascular dilatation. They could be found not only in meningioma, but also in meningioma, but also in various pathologies such as acoustic schwannoma (3), meningeal metastasis (4), adenoid cystic carcinoma (5), cerebral gumma (6), aggressiv e papillary middle-ear tumor (6), superficial glioma (7) and pituitary apoplexy (8). To our knowledge, no report has described the presence of the dural tail sign in nasopharyngeal carcinomas (NPC).

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“…However, some typical features distinguish meningiomas from gliomas. According to reports described previously [2,4,11,19], meningiomas tend to have a broad-based, extra-axial attachment, exhibit distinct tumor margins, and have contrast-enhanced signs (dural tail sign). These findings were also observed in this case.…”

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confidence: 89%

“…Several reports [1,4,11,19] describe the dural tail sign associated with meningiomas and occasionally with other lesions in veterinary medicnie. Dural tail sign has been observed in 40-60% of meningiomas, and has occasionally been observed in other diseases.…”

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confidence: 99%

Long-Term Chemotherapy with Lomustine of Intracranial Meningioma Occurring in a Miniature Schnauzer

Jung

Kim

Park

et al. 2006

The Journal of Veterinary Medical Science

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ABSTRACT. A 14-year-old male miniature schnauzer was referred to us because it was circling to the right. A mass in the diencephalon was noted on brain magnetic resonance images. The dura was thickened with marked linear enhancement after contrast administration. Based on diagnostic image analysis, this lesion strongly suggested meningioma. The patient's symptoms were well controlled by a combination therapy of prednisolone and lomustine (CCNU), and survived for thirteen months after diagnosis. This case was diagnosed as a meningioma based on histopathological findings. This report describes the clinical findings, imaging characteristics, and pathologic features of a diencephalic and mesencephalic meningioma and long-term survival after lomustine and prednisolone therapy. KEY WORDS: lomustine (CCNU), magnetic resonance imaging (MRI), meningioma.J. Vet. Med. Sci. 68(4): 383-386, 2006 Primary brain tumors include neoplasms that arise from brain parenchymal tissue, cells comprising the outer and inner lining of the brain, and vascular elements. Intracranial neoplasia is well described in the dog, and the incidence of brain tumors in this species may approach 3.0%. It has been reported that primary central nervous system tumors arising from mesodermal origin (meningioma) are the most common intracranial tumors in dogs, followed by neuroectoderm a l ( g l i a l ) t u m o r s ( e . g . , a s t r o c y t o m a a n d oligodendroglioma) [2,9,12].Diagnosis of specific tumor types from magnetic resonance imaging (MRI) characteristics is sometimes difficult in both people and animals, and a definitive diagnosis may depend upon incisional or excisional biopsies. Brain tumors exert their pathologic effects both by directly encroaching on and/or invading brain tissue and by such secondary effects as peritumoral edema, inflammation, obstructive hydrocephalus, and hemorrhaging. Treatment of dogs and cats with primary brain tumors can be divided conceptually into supportive and definitive therapy [2].A 14-year-old male miniature schnauzer with body weight of 5.8 kg was presented to the Veterinary Medical Teaching Hospital of Konkuk University due to a 4-week history of circling to the right and anorexia. Intermittent circling was observed first, and clinical signs worsened progressively. Neurological examination revealed continuous clock-wise circling. Cranial nerve deficits included both bilaterally decreased menace response (MR) and pupillary light reflex (PLR). Based on the neurological examination, clinical signs were likely due to a structural brain lesion. The results of complete blood count (CBC) profiles were within the reference range. Serum chemistry profiles showed increased alkaline phosphatase (581 U/L; reference range: 0 to 142 U/L) and alanine aminotransferase (82 U/L; reference range: 13 to 53 U/L).Thus, we performed a brain MR scan (E-scan; ESAOTE, Italy) using 0.2T unit. T1-and T2-weighted images and postcontrast T1-weighted images were obtained. MR scanning confirmed a mass in diencephalon and mesencephalon ...

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Prominent meningeal enhancement adjacent to meningioma on Gd-DTPA-enhanced MR images: histopathologic correlation.

Cited by 124 publications

References 0 publications

Application of contrast-enhanced T1-weighted MRI-based 3D reconstruction of the dural tail sign in meningioma resection

Application of contrast-enhanced T1-weighted MRI-based 3D reconstruction of the dural tail sign in meningioma resection

Dural Tail Sign in MR Imaging of Nasopharyngeal Cancer

Long-Term Chemotherapy with Lomustine of Intracranial Meningioma Occurring in a Miniature Schnauzer

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