Giant angioleiomyoma of the sacral foramina: an unusual location

Abstract

Angioleiomyoma is a benign, vascular smooth muscle tumor originating from the tunica media of the vessel wall. In general, it typically arises in the cutaneous, subcutaneous tissue or fascia of the lower extremities in middle-aged women and is less than 2 cm in diameter. We report an unusual case of an angioleiomyoma of the sacral foramina in an 82-year-old man. MRI revealed a well-defined irregular-shaped deep-seated mass in the sacral foramina, showing branching pattern of growth associated with pressure bony erosion of the adjacent bones, with isointense to hypointense signal on T2-weighted images. Surgical excision was performed and the mass was diagnosed as angioleiomyoma on pathological examination. To the best of our knowledge, there has been no report of an angioleiomyoma involving the sacral foramina.

Point Tracking Technology of Sports Image Sequence Marks Based on Fuzzy Clustering Algorithm

“…In the proposed method, the color histogram is extracted from the characteristic information of each moving object, and the histogram is continuously accumulated to avoid being sensitive to noise or changes, and the average value is obtained and stored. Finally, some comparison experiments prove the feasibility and applicability of the proposed algorithm [ 5 ]. Object detection and tracking are necessary and challenging activities in multiple PC vision scenarios such as security, motor vehicle navigation, and independent robot navigation.…”

Angioleiomyoma of the sacrum: a case report and literature review of similar sacral lesions

“…The only case was published by Sang Min Lee et al. [2] . They showed that a giant mass was detected in the foramen of the sacrum, accompanied by a branching pattern of growth and bone erosion of adjacent bones, but there was no significant bone destruction.…”

“…Angioleiomyoma, a rare tumor consisting of mature smooth muscle cells and prominent vascular components, is classified by the World Health Organization (WHO) in 2013 as benign pericytic (perivascular) tumors [3] . It usually happens in the subcutaneous tissue of the limbs, presenting as painful, small, isolated solid mass [2] . Incidence peaks in people aged 40 to 60 years, mainly in women.…”

“…In our study, the patient felt pain in the lumbosacral and right lower extremity, accompanied by radiation pain. Although suspected etiologies such as trauma, infection and hormone have been put forward, the definite etiology of angioleiomyoma (ALM) is not exact yet [2] .…”