Angiographic and Histologic Studies of the Vascularization of Peripheral Nerve Tumors

Stener, Bertil; Angervall, Lennart; Nilsson, Lars; Wickbom, Ingmar

doi:10.1097/00003086-196909000-00017

Cited by 28 publications

(6 citation statements)

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“…Angiography of deep PNSTs demonstrates displacement of major vascular structures owing to the site of origin of the lesion within the neurovascular bundle. The degree of increased vascularity is variable and more prominent in malignant PNSTs (81)(82)(83)(84)(85). A characteristic at angiography that should suggest a neurogenic neoplasm is the identification of corkscrew-type vessels at the upper or lower poles of the tumor, which represent hypertrophy of nutrient nerve vasculature (Fig 9b) (81,82).…”

Section: Imaging Of Pnstsmentioning

confidence: 99%

From the Archives of the AFIP

et al. 1999

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Numerous neurogenic tumors can affect the musculoskeletal system, including traumatic neuroma, Morton neuroma, neural fibrolipoma, nerve sheath ganglion, neurilemoma, neurofibroma, and malignant peripheral nerve sheath tumors (PNSTs). The diagnosis of neurogenic tumors can be suggested from their imaging appearances, including lesion shape and intrinsic imaging characteristics. It is also important to establish lesion location along a typical nerve distribution (eg, plantar digital nerve in Morton neuroma, median nerve in neural fibrolipoma, large nerve trunk in benign and malignant PNSTs). Traumatic and Morton neuromas are commonly related to an amputation stump or are located in the intermetatarsal space, respectively. Neural fibrolipomas show fat interspersed between nerve fascicles and are often associated with macrodactyly. Nerve sheath ganglion has a cystic appearance and commonly occurs about the knee. Radiologic characteristics of neurilemoma, neurofibroma, and malignant PNST at computed tomography (CT), ultrasonography, and magnetic resonance imaging include fusiform shape, identification of entering and exiting nerve, low attenuation at CT, target sign, fascicular sign, split-fat sign, and associated muscle atrophy. Although differentiation of neurilemoma from neurofibroma and of benign from malignant PNST is problematic, recognition of the radiologic appearances of neurogenic tumors often allows prospective diagnosis and improves clinical management of patients.

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Section: Imaging Of Pnstsmentioning

confidence: 99%

From the Archives of the AFIP

et al. 1999

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“…"gefäßreich", beruht. Der Zusammenhang von Tumordurchblutung und Dignität konnte aufgrund angiografischer Studien für periphere Nervenscheidentumoren [29] [30]. Zusammenfassend könnte der farbkodierten Duplex-Sonografie aufgrund deren hoher Genauigkeit in der Primär-und Rezidivdiagnostik von Weichteiltumoren eine Schlüsselstellung für das weitere diagnostische und therapeutische Prozedere zukommen.…”

Section: Patientenkollektivunclassified

Sonografische Klassifikation solider Weichteiltumoren

Schulte¹,

Baer²,

Schultheiß³

et al. 2010

TumorDiagn u Ther

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“…Some benign tumours and most malignant ones show increased vascularity in angiograms (Stener et al, 1969). In benign tumours this takes the form of contrast filling of small but otherwise normal vessels.…”

Section: Discvssiosmentioning

confidence: 99%

“…In malignant lesions there is frequently diffuse opacification due t o filling of abundant fine tunicur vessels too small to be seen individually. When separate vessels are shown in malignant nerve sheath tumours, they are irregular with pooling, and arteriovenous shunting may be present (Shields, 1967 ;Stener et al, 1969). The angiographic appearances, however, are not sufficiently distinctive to discriminate with absolute certainty a benign from a malignant tumour in every instance.…”

Section: Discvssiosmentioning

confidence: 99%