Solid-pseudopapillary neoplasm of the pancreas (SPPNP) is a primary epithelial neoplasm of the exocrine pancreas with borderline malignant potential. The unusual features included the ‘giant’ size and the absence of metastases/ capsular or vascular invasion despite the large size and predominantly solid nature. At two years following complete excision, she is asymptomatic and the imaging shows ...

epithelioid hemangioendothelioma (ehe) is a rare neoplasm of vascular origin which arises preferentially in soft tissue and bone, and rarely in the liver. its vascular nature is confirmed by positive staining for factor viii-related antigen and other endothelial cell markers (cd31, cd34) in addition to the pathologic characteristics of well-developed basal lamina, pinocytotic vesicles, and, mor...

Malignant epithelioid hemangioendothelioma (MEH), also known as high-risk epithelioid hemangioendothelioma, is a low- to intermediate-grade vascular malignancy originally described as a vascular neoplasm of endothelial origin. This very rare vascular neoplasm has been described mainly in soft tissue, but also in various organs and locations, including the liver, lung, brain, colon, lymph nodes,...

A 47-year-old man presented with intussusception of the colon and was found to have a large tubulo-villous adenoma high grade dysplasia, transforming into adenocarcinoma. The bowel adjacent polyp showed florid vascualr proliferation, mimicking vascular neoplasm. However, there were no signs atypia or malignancy in lesion. We illustrate an example chronic obstruction inducing hypoxia, leading ne...

PURPOSE The aim of this study was to explore the feasibility of image classification of liver cancer surrounding right hepatic pedicle (RHP) and its guide to precise liver resection. METHODS Twenty-five patients with single liver cancer surrounding RHP were collected. According to the adjacent relationship between neoplasm and RHP shown in CT or MRI, the liver neoplasms were divided into the ...

Leiomyoma is a rare benign neoplasm deriving from smooth muscle. Vascular leiomyoma is its most common subtype in the oral cavity. It may appear at any age with the greatest incidence in the 4th and 5th decade of life. The common manifestation is a slow-growing, asymptomatic, submucousal mass. The diagnosis is only through microscopic examination requiring special staining...

Leiomyosarcoma (LMS) of inferior vena cava (IVC) is a rare neoplasm affecting approximately 1/100,000 people. The prognosis is poor and potential curative intent occurs through challenging operations, such as vena cava resection, occasionally multivisceral when required, and vascular reconstruction. There are few retrospective series regarding this retroperitoneal neoplasm, and the aim of the p...

leiomyoma is a rare benign neoplasm deriving from smooth muscle. vascular leiomyoma is its most common subtype in the oral cavity. it may appear at any age with the greatest incidence in the 4th and 5th decade of life. the common manifestation is a slow-growing, asymptomatic, submucousal mass. the diagnosis is only through microscopic examination requiring special staining. treatment of choice ...

BACKGROUND Littoral cell angioma (LCA) is a recently described primary vascular neoplasm of the spleen that may be associated with other malignancies and may itself also have malignant potential. CASE PRESENTATION We present a case of LCA that was discovered incidentally in a 52-year-old woman who presented with biliary colic at the time of consultation for cholecystectomy. This vascular neop...