Color and duplex Doppler sonography of hemangiopericytoma

Juan, Chun-Jung; Huang, Guo-Shu; Chin, Shy-Chy; Hsueh, Chun-Jen; Wu, Ching-Jiunn; Hsiao, Hai-Sung; Jen, Tsu-Kang; Chao, Dai-Guang; Lee, San-Kan

doi:10.1002/1097-0096(200101)29:1<51::aid-jcu9>3.0.co;2-4

Cited by 8 publications

(4 citation statements)

References 18 publications

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“…Ultrasound and Doppler investigation may be used to assess vascularity prior to biopsy. 9 In the presented case, histological diagnosis was aided by the typical appearance of spindle cell fascicles with eosinophilic cytoplasm and a pericytoma-like vascular pattern in staghorn configuration. Haemangiopericytoma is not thought to be associated with any particular immunohistochemical staining profile, though typically lesions are positive for the vascular marker cluster of differentiation 34 protein, and also for vimentin and cluster of differentiation 99 protein.…”

Section: Discussionmentioning

confidence: 99%

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Infantile haemangiopericytoma: a rare congenital cervical tumour

et al. 2014

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Haemangiopericytoma can follow an aggressive course in adults, including local recurrence and metastasis. The infantile variant is rare but typically follows a distinct clinical course, and is associated with more benign behaviour compared with similar tumours in adults and children over one year. Congenital haemangiopericytoma can be effectively treated with surgery, without requiring adjuvant therapy.

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Section: Discussionmentioning

confidence: 99%

“…Given the vascular nature of the tumour and the associated risk of bleeding, complete excision may be preferable to less invasive biopsy methods. Ultrasound and Doppler investigation may be used to assess vascularity prior to biopsy 9 …”

Section: Discussionmentioning

confidence: 99%

Infantile haemangiopericytoma: a rare congenital cervical tumour

et al. 2014

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“…Color Doppler evaluation can illus-Thrita. 2013; 2(4) trate intra-tumoral arteriovenous connections and is a proper tool for guidance in preoperative biopsy in some cases (11).…”

Section: Discussionmentioning

confidence: 99%

Malignant Retroperitoneal Hemangiopericytoma: Report of a 73 Years Old Woman and Review of Literature

et al. 2013

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Introduction: Hemangiopericytomas (HPCs) are rare neoplasms which account for approximately 1% of primary vascular tumors. Case Presentation: We report a 73 years old woman with vague abdominal pain who did not have further significant symptoms and was diagnosed to have retroperitoneal hemangiopericytoma. Discussion: The tumor was initially diagnosed by ultrasound evaluation. MRI showed a lobulated mass at lower lateral quadrant of the abdomen, adjacent to left psoas muscle with small cystic components. Successful surgical resection of the tumor indicated a solitary large encapsulated 10 × 7 × 4 centimeter retroperitoneal multiloculated mass. Subsequent pathologic studies confirmed the tumor to be malignant hemangiopericytoma. The patient is currently well and is evaluated by periodic CT scans.

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“…We think that there are two possible causes of the dilated intratumoural vessels. First, the presence of intratumoural arteriovenous shunting may be suspected, as indicated on colour Doppler sonography by large internal vessels with low vascular impedance and arterialisation of the venous flow with increased pulsatility [8]. Second, the dilated vessels maybe associated with a neoplasm.…”

Section: Discussionmentioning

confidence: 99%

Atypical radiological features of a leiomyosarcoma that arose from the ovarian vein and mimicked a vascular tumour

Kim

Kwon²,

Cho³

et al. 2010

BJR

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ABSTRACT. Leiomyosarcomas of the ovarian vein are extremely rare tumours. Most tumours are hypervascular and typically have a large avascular centre of necrosis. We experienced a case of a retroperitoneal leiomyosarcoma that arose from the ovarian vein with marked vascular proliferation and dilatation within the tumour. To the best of our knowledge, this is the first case report of a retroperitoneal leiomyosarcoma with an atypical vascular structure in the clinical literature. A leiomyosarcoma is a rare malignant tumour of the smooth muscle that arises in the alimentary tract, retroperitoneum, genitourinary tract or soft tissue. A primary leiomyosarcoma of vascular origin is a rare tumour, which arises most often from the inferior vena cava [1]. A few cases of leiomyosarcoma of the ovarian vein have been reported in previous studies [2][3][4]. Commonly, a retroperitoneal leiomyosarcoma is seen as a large mass containing a prominent cystic necrotic area. Recently, we experienced a case of a retroperitoneal leiomyosarcoma that arose from the right ovarian vein and had multiple intratumoural dilated vessels. In this case report, we describe the imaging findings of this tumour and review the relevant literature. Case reportA 58-year-old woman visited our hospital because of the presence of a palpable mass in the right lower abdomen. Laboratory findings, including tumour markers, were all normal.Ultrasound of the right lower quadrant showed the presence of a large echogenic, partially cystic mass. A colour Doppler sonogram demonstrated increased blood flow within the mass. A duplex Doppler sonogram also demonstrated increased blood flow and pulsatile venous waveforms within the tumour (Figure 1). Contrastenhanced CT revealed the presence of a 9 cm wellcircumscribed, heterogeneous retroperitoneal mass containing central low attenuation. Characteristically enhancing tortuous tubular structures, thought to be dilated vessels, were seen within the mass (Figure 2a). The vascular structures seemed to be connected to the right ovarian vein, and the upper portion of the right ovarian vein was distended (Figure 2b). The mass seemed separated from the kidney, small bowel and inferior vena cava. The differential diagnoses should include a retroperitoneal mass with a large area of central low attenuation and intratumoural vessels, such as a haemangiopericytoma, angiosarcoma or leiomyosarcoma.The patient underwent resection of the retroperitoneal mass. The mass was attached and was connected to the right ovarian vessels (Figure 3a). There was no definite invasion of the adjacent organs and the mass was found to originate in the right ovarian vein. Upon examination of a gross specimen, abundant large-calibre, thin-walled vascular spaces were found throughout the mass (Figure 3b). A microscopic examination revealed a tumour composed of interlacing fascicles of spindle cells with blunt-ended nuclei. The tumour cells showed moderate to severe nuclear atypia and frequent mitoses. The central portion of the tumour showed necrosis, hyal...

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Color and duplex Doppler sonography of hemangiopericytoma

Cited by 8 publications

References 18 publications

Infantile haemangiopericytoma: a rare congenital cervical tumour

Infantile haemangiopericytoma: a rare congenital cervical tumour

Malignant Retroperitoneal Hemangiopericytoma: Report of a 73 Years Old Woman and Review of Literature

Atypical radiological features of a leiomyosarcoma that arose from the ovarian vein and mimicked a vascular tumour

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