Sonography of soft tissue masses of the neck

Gritzmann, N.; Hollerweger, Alois; Macheiner, Peter; Rettenbacher, Thomas

doi:10.1002/jcu.10073

Cited by 108 publications

(84 citation statements)

References 73 publications

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“…However, the soft tissue characterization with ultrasonography is less specific than CT or MRI. When the mass is difficult to identify on ultrasonogram, CT or MRI is necessary [1,16,17]. Lipoma has a characteristic radiographic appearance.…”

Section: Discussionmentioning

confidence: 99%

Lipoma in the Soft Tissues of the Floor of the Mouth: A Case Report

Annibali¹,

Cristalli²,

Monaca³

et al. 2009

TOOTORJ

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Lipomas are common benign soft tissue neoplasms of mature adipose tissue. Most of lipomas develop in the subcutaneous tissues but deeper tissues may be involved as well; the oral cavity is not commonly affected. The overall incidence in the oral cavity is thought to be between 1% and 4.4% of all benign oral lesions. Oral lipomas can occur in various anatomic sites including the major salivary glands, buccal mucosa, lip, tongue, palate, vestibule, and floor of mouth. Although benign in nature, their progressive growth may cause interference with speech and mastication due to tumour's dimension. The present report shows the case of a 58-year old female who presented with a large intraoral lipoma.

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Section: Discussionmentioning

confidence: 99%

Lipoma in the Soft Tissues of the Floor of the Mouth: A Case Report

Annibali¹,

Cristalli²,

Monaca³

et al. 2009

TOOTORJ

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“…[1][2][3] One of the most common sites of schwannomas is the head and neck region, but these tumours are rarely observed in the extracranial region. 4,5 Among the extracranial schwannomas, lesions in the carotid sheath are common; however, schwannomas in other sites are extremely rare.…”

Section: Introductionmentioning

confidence: 99%

Imaging findings of neurogenic tumours in the head and neck region

Kami¹,

Chikui²,

Okamura³

et al. 2012

Dentomaxillofacial Radiology

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Objective: The aim of this study was to describe the CT, MRI and ultrasonography findings of five cases of neurogenic tumours in the head and neck region. Methods: Five neurogenic tumours were analysed with respect to their CT value, the presence of cystic change, target sign, lobulation, connection to the nerve and vascularity. Results: The contrast-enhanced CT (ECT) of the schwannomas demonstrated either a mass with low enhancement (two out of three cases), which reflected the predominant Antoni B components, or a mass with cystic changes, which was an Antoni A-based schwannoma displaying cystic changes (one out of three cases). On MRI, all tumours showed homogeneous and isointense signals for muscle on T 1 weighted images (T 1 WIs). T 2 weighted images (T 2 WIs) and gadolinium (Gd)-enhanced T 1 WIs demonstrated target sign in both schwannomas. Ultrasound examination showed a well-defined, ovoid or round hypoechoic mass. The direct connection to the nerve was demonstrated in two of the five cases. Lobulation was observed in only one of the five cases and cystic changes were observed in one of the five cases. In all of the cases, no vascularity was seen in power Doppler images (PDIs) obtained percutaneously. Conclusions: Low-enhanced areas on ECTs can be specific for schwannomas, which suggests the predominance of Antoni B components. The target sign on T 2 WIs and Gdenhanced T 1 WIs can be specific, which can be used to differentiate the two different components (Antoni A and Antoni B). The direct connection to the nerve can be a specific finding for neurogenic tumours; however, at present the sensitivity is 40%.

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“…However, these methods do not clearly distinguish between malignancy and benignity nor accurately predict the specific diagnosis of a neck lump. 1 Thus, fine-needle aspiration (FNA) is commonly the first diagnostic tool employed to obtain tissue samples for these lesions. Although yielding a sensitivity and specificity of approximately 90% to 95%, FNA unfortunately supplies nondiagnostic material in 10% to 15% of procedures despite a good puncture technique.…”

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confidence: 99%