Lipomatous lesions of the head and neck region: imaging findings in comparison with histological type

Cappabianca, Salvatore; Colella, Giuseppe; Pezzullo, Martina; Russo, Anna; Iaselli, Francesco; Brunese, Luca; Rotondò, Antonio

doi:10.1007/s11547-008-0258-5

Cited by 48 publications

(29 citation statements)

References 29 publications

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“…Liposarcomas, of which there are many histologic subtypes, are malignant adipocytic tumors. Well-differentiated liposarcoma and atypical lipomatous tumor are locally aggressive lesions with intermediate malignant potential (7,27).…”

Section: Adipocytic Tumorsmentioning

confidence: 99%

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Soft Tissue Tumors of the Head and Neck: Imaging-based Review of the WHO Classification

Razek

Huang²

2011

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The World Health Organization (WHO) system for defining and classifying soft tissue tumors is usually applied to lesions that occur in the trunk and extremities, but it also provides an excellent framework for characterizing nonepithelial extraskeletal tumors of the head and neck. Although nonepithelial extraskeletal tumors are in the minority among head and neck lesions, they are by no means rare. The WHO classification system recognizes nine major types based on histologic differentiation: adipocytic, fibroblastic or myofibroblastic, fibrohistiocytic, smooth muscle, skeletal muscle, vascular, pericytic, and chondro-osseous tumors, as well as soft tissue tumors of uncertain differentiation. Tumors of each histologic type may be further subclassified on the basis of their biologic behavior as benign, intermediate (ie, having malignant potential), or malignant. Imaging plays an important role in the noninvasive diagnosis and characterization of nonepithelial soft tissue tumors of the head and neck, providing clues about tumor grade, composition, extent, and involvement of adjacent structures. Although the imaging characteristics of many such tumors are nonspecific, consideration of the clinical history in concert with the imaging findings may help limit the differential diagnosis or even allow reliable diagnosis of some of these tumors.

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Section: Adipocytic Tumorsmentioning

confidence: 99%

“…On fat-suppressed images, the signal within lipomas drops out completely. Thin septa occasionally can be seen within the tumors, but simple lipomas rarely present a diagnostic challenge (27)(28)(29).…”

Section: Lipomamentioning

confidence: 99%

Soft Tissue Tumors of the Head and Neck: Imaging-based Review of the WHO Classification

Razek

Huang²

2011

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126

108

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“…8,9 In our case, CT showed a low-intensity CT signal, and MRI was not carried out. Okada et al in their review of sialolipomas have compared the clinical and histopathogical features.…”

Section: Discussionmentioning

confidence: 62%

Sialolipoma of Hard Palate: A Rare Variant of Lipoma

Manjunath¹,

Sharada²,

Smitha³

et al. 2011

World Journal of Dentistry

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The designation 'sialolipoma' is given to a recently described histologic variant of lipoma characterized by well-demarcated proliferation of mature adipocytes with secondary entrapment of salivary gland elements. Nagao et al from Japan first described this new variant. These tumors have been observed in both the major and minor salivary glands with around 35 cases being reported in the English literature. The most common site for the tumor is the parotid (17 cases, 60.7%) followed by the hard palate (four cases, 14.2%). We report a similar case of sialolipoma arising in the hard palate presenting in a 45-year-old male. Diagnosed as an ordinary lipoma of the hard palate, complete surgical removal of the tumor was done. The histopathological features showed a well-encapsulated lesion exhibiting both adipose tissue and glandular epithelium, and based on the recent criteria of histological findings of sialolipoma, the tumor was diagnosed as sialolipoma of the hard palate. Because of its rarity, it was fitting to report this entity.

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“…Microscopically, lipoma is seen as aggregation of mature adipose cells which is coated by a thin capsule. Lipoma may be divided into several subclasses based on histology, that are classic lipoma (either solitary or multiple), fibrolipoma [18], angiolipoma, infiltrating lipomas, intramuscular lipoma, hibernoma, pleimorphic lipoma, lipoblastomastosis, and diffuse lipoblastomatosis [19]. Post-surgery, tissue was sent for pathological examination anatomy revealed macroscopic and microscopic pattern suitable for retropharyngeal fibrolipoma [20,21].…”

Section: Discussionmentioning

confidence: 99%

Giant Retropharyngeal Lipoma

2015

Int J Otorhinolaryngol

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Lipomatous lesions of the head and neck region: imaging findings in comparison with histological type

Cited by 48 publications

References 29 publications

Soft Tissue Tumors of the Head and Neck: Imaging-based Review of the WHO Classification

Soft Tissue Tumors of the Head and Neck: Imaging-based Review of the WHO Classification

Sialolipoma of Hard Palate: A Rare Variant of Lipoma

Giant Retropharyngeal Lipoma

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