The size of reported gastric angiolipoma
ranges from 0.5 up to 5 cm (Table).
Williams, "Intraosseous angiolipoma
of the mandible: a case report and review of the literature," Journal of Oral and Maxillofacial Surgery, vol.
On a contrast-enhanced study, an angiolipoma
shows marked enhancement as a result of its intense vascularity.
On the other hand, as for angiolipoma
with bleeding, MRI seems to show an inhomogenous isointense mass on T1-weighted images.
Based on microscopical features they are classified into classic lipoma, fibro lipoma, angiolipoma
, spindle cell lipoma, and pleomorphic, myxoid, sialolipoma, and intramuscular lipomas .
is a rare variant of lipoma; its distinctive feature is prominent vascularity.
The radiological differential diagnosis of both benign and malignant fat containing tumours, including atypical lipoma, haemangioma, angiolipoma
, and liposarcoma, therefore warrants histological characterisation prior to excision.
On histology, the IAC tumor showed nerve tissue with fatty infiltration (figure 2), while the forearm tumor showed an angiolipoma
. At the 6-month followup, the patient's tinnitus had disappeared, her facial weakness had improved to House-Brackmann grade II status, and a repeat MRI detected no evidence of tumor recurrence.
(1) According to histopathological findings, they are sub classified into conventional lipoma, fibrolipoma, angiolipoma
, fusiform cell lipoma, myolipoma and pleomorphic lipoma.
The benign hemangioma group consisted of 13 typical hemangiomas, 6 atypical hemangiomas, 1 angiolipoma
, and 1 angiomatosis.
Lipomas can occasionally be altered by the presence of other mesenchymal elements, such as fibrous tissue (fibrolipoma), smooth muscle (myolipoma), capillaries (angiolipoma
), and collagen-forming spindle cells (spindle-cell lipoma).