Vascular leiomyoma of an extremity: MR imaging-pathology correlation.

Hwang, Jae Woong; Ahn, Joong Mo; Kang, Heung Sik; Suh, Jin Suck; Kim, Sung Moon; Seo, Jeong‐Wook

doi:10.2214/ajr.171.4.9762979

Cited by 84 publications

(85 citation statements)

References 6 publications

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“…However, as presented in our case, at US the lesion usually appears hypoechoic, clivated from the tendons, but MR can better delineate the lesion and define its relationship to the adjacent structures allowing a better pre-excisional planning [5]. Hwang et al [6] found that the smooth muscle and numerous vessels within vascular leiomyomas corresponded to hyperintense areas on T2-weighted MR images. In addition, the fibrous capsule was identified as a well-defined peripheral hypointense area on T2-weighted MR.…”

Section: Discussionmentioning

confidence: 59%

Vascular leiomyoma presenting as medial joint line pain of the knee

Cantisani

D’Ambrosio

Olive

et al. 2009

Journal of Ultrasound

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Vascular leiomyoma or angioleiomyoma is a rare benign solitary smooth muscle tumor that occurs mostly in the extremities. Most of these tumors are composed of venous vessels, but in some reports small arteries have been detected in the tumors.We present a rare case of a 60-year-old man with a subcutaneous vascular leiomyoma of the right knee. Clinical findings, ultrasound (US), magnetic resonance (MR), and histopathologic features are reported, and the literature is reviewed. The knowledge of specific imaging findings allows to include vascular leiomyoma in the differential diagnosis of lower extremity subcutaneous masses and to achieve an early accurate diagnosis.Sommario Il leiomioma vascolare e o angioleiomioma e è un raro tumore benigno, solitario che si localizza soprattutto a livello delle estremità. Gran parte di questi tumori sono composti di vasi venosi, ma in alcuni reprt sono state trovate delle piccole arterie.Presentiamo qui il caso di un uomo di 60 anni con un leiomioma vascolare sottocutaneo del ginocchio. Rivisitiamo qui la presentazione clinica, l'iconografia, le caratteristiche istopatologiche e la letteratura pertinente. La conoscenza delle caratteristiche specifiche di imaging permette di includere i leiomiomi vascolari nella diagnosi differenziale delle masse sottocutanee dolenti delle estremità e di ottenere una diagnosi precoce e mirata. ª

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Section: Discussionmentioning

confidence: 59%

Vascular leiomyoma presenting as medial joint line pain of the knee

Cantisani

D’Ambrosio

Olive

et al. 2009

Journal of Ultrasound

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“…Hwang's group reported that diŠerential diagnosis of schwannoma is not easy because of the well deˆned capsules and mixed signal intensities. 7 Stoller and associates also reported that hypervascular tumors had quite similar characteristics, even though hemangiopericytomas and some hemangiomas are often characterized by the presence of serpiginous vessels and a slight hyperintensity on T1-weighted images. 10 Because the tumors in both of our cases were hypervascular and larger than any previously reported, they had to be distinguished from malignant tumors, for example, from malignantˆbrous histiocytoma or hemangiopericytoma.…”

Section: Discussionmentioning

confidence: 91%

“…Hwang's group compared MR images of vascular leiomyomas of an extremity with histopathologicˆndings in 4 patients. 7 The smooth muscle and numerous vessels corresponded to the hyperintense areas on T2-weighted MR images, and the toughˆbrous tissue appeared isointense to skeletal muscle on T2-weighted MR images. On the T2-weighted images, the appearance was variable, probably caused by the vessels, revealing a myxomatousˆbrous content.…”

Section: Discussionmentioning

confidence: 93%

Giant Angioleiomyoma in Extremity: Report of Two Cases

et al. 2006

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Angioleiomyomas are smooth muscle tumors that occur most often in the extremities and are usually less than 2 cm in diameter. We present 2 case reports of giant angioleiomyoma. Case 1 was a 51-year-old woman with a 5-year history of a slowly growing mass 12×10 cm in diameter in the right posterior thigh. The tumor was larger than any previously reported. Case 2 was a 72-year-old man with an 8-year history of a slowly growing mass 6×6 cm in diameter in the left palm. The tumor was unique in that it grew to a giant size in the hand of the elderly patient. Magnetic resonance imaging of both cases conˆrmed the tumors' presence in the subcutis. T 1 -weighted images showed homogenous signal isointense to muscle. On T 2 -weighted images, areas of hyperintensity and hypointensity intermingled. Three-dimensional gadolinium-enhanced magnetic resonance angiography showed rapid initial enhancement followed by a gradual increase in enhancement, suggesting that the tumors were rich in vessels. Microscopic examination revealed numerous vascular channels embedded within a huge smooth muscle component.

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“…9-12 Hwang et al 10 suggested that the smooth muscle and the numerous vessels corresponded to the high signal intensity areas, while the fibrous tissue appeared iso signal intensity on T2-weighted MR images. Yoo et al 11 suggested that the presence of tortuous vascular channels surrounded by smooth muscle bundles and areas of myxoid change could explain the heterogenicity of signal intensity of the tumor on T2-weighted images.…”

Section: Discussionmentioning

confidence: 99%

Two Case Reports of Angioleiomyoma of the Finger

Kobashi¹,

Munetomo²,

Baba³

et al. 2016

Radiol Open J

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Angioleiomyoma represents a benign stromal tumor, which usually occurs in the subcutaneous tissue of the extremities. The angioleiomyoma in the finger is rare. We report 2 rare cases of an angioleiomyoma in finger. Case one, was a 72-year-old man with a mass on the radial side of distal phalanx of the left third finger. Case two, was a 70-year-old man with a mass on the ulnar side of interphalangeal joint of the left thumb. Both cases showed isointense to hypointense mass lesion on both T1 and T2-weighted images and were pathologically diagnosed with an angioleiomyoma. Heterogeneously isointense to hypointense on T2-weighted MR image showed two components: smooth muscle tissue punctuated with thick-walled vessles and/or hyalization on pathological finding. When much hyalization is included, it will not be enhanced on gadolinium-enhanced fat suppressed T1-weighted magnetic resonance (MR) image. Both T2-weighted and gadolinium-enhanced fat suppressed T1-weighted MR image findings should considered to predict tumor composition.

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Vascular leiomyoma of an extremity: MR imaging-pathology correlation.

Cited by 84 publications

References 6 publications

Vascular leiomyoma presenting as medial joint line pain of the knee

Vascular leiomyoma presenting as medial joint line pain of the knee

Giant Angioleiomyoma in Extremity: Report of Two Cases

Two Case Reports of Angioleiomyoma of the Finger

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