No abstract available.
Hemangioma/*blood supply ; Hepatic Artery/radiography ; Humans ; *Liver Circulation ; Liver Neoplasms/*blood supply ; Male ; Middle Aged ; Portal Vein/radiography

Face ; blood supply ; Hemangioma ; classification ; diagnosis ; therapy ; Humans ; Jaw ; blood supply ; Lymphatic Abnormalities ; classification ; diagnosis ; therapy ; Mouth ; blood supply ; Vascular Malformations ; classification ; diagnosis ; therapy

Acupuncture Therapy ; Hemangioma, Cavernous ; surgery ; Humans ; Male ; Postoperative Complications ; therapy ; Spinal Cord ; blood supply ; Young Adult

Face ; blood supply ; Hemangioma ; therapy ; Humans ; Vascular Malformations ; therapy ; Vasculitis ; therapy

OBJECTIVEThe purpose of this study was to compare MRI findings of solitary hypovascular hepatic nodules, benign and malignant, to identify their MRI characteristics.

METHODSWe retrospectively assessed solitary hypovascular hepatic nodules ≤ 3 cm in 135 patients, among them there were 55 malignant nodules [29 peripheral nodules of cholangiocarcinoma, PCC, and 26 hepatic metastases, HM] and 80 benign nodules [48 inflammatory myofibroblastic tumors, IMT, and 32 hepatic hemangioma, HG], proved by surgery, biopsy or follow-up imaging. Unenhanced and dynamic enhanced MRI findings of the 135 patients were analyzed retrospectively. Statistical analysis included Chi-square test or Fisher's exact test, and receiver operating characteristic (ROC) curve.

RESULTSThere was significant difference (P < 0.05) between the malignant group and benign group in terms of location, margin, T2WI signal intensity, heterogeneity or homogeneity of the nodule, and type and degree of peritumoral and intratumoral enhancement. Area under the curve at the first film reading by three radiologists was 0.678 ± 0.047, 0.920 ± 0.022 at the second time, and there was a significant difference (Z = 5.22, P < 0.05) between them.

CONCLUSIONSOur data indicated that solitary hypovascular hepatic nodules show unenhanced and dynamic enhanced MRI features. Therefore, MR imaging combined with clinical and biochemical data does provide reliable information for a proper diagnosis of such hepatic lesions and differentiation of malignant from benign nodules.

Cholangiocarcinoma ; pathology ; Diagnosis, Differential ; Hemangioma ; pathology ; Humans ; Liver ; blood supply ; pathology ; Liver Neoplasms ; blood supply ; pathology ; Magnetic Resonance Imaging ; ROC Curve ; Retrospective Studies

Child ; Child, Preschool ; Face ; blood supply ; Female ; Hemangioma, Capillary ; congenital ; diagnosis ; therapy ; Humans ; Infant ; Lymphatic Abnormalities ; diagnosis ; therapy ; Male ; Mouth ; blood supply ; Vascular Malformations ; diagnosis ; therapy

OBJECTIVETo try to find the best method of laser therapy for the management of venous malformation and hemangioma in oral and maxillofacial regions.

METHODSFrom June, 1999 to July, 2002, 2 481 cases of venous malformations and hemangiomas were treated by several kinds lasers in our department. The lesions included port-wine stains, venous malformations, telangiectasia and hemangioma. The lasers used were continuous wave CO(2), Nd:YAG and Krypton lasers, pulsed dye laser and ultra-pulsed CO(2) lasers. The treatment modalities were direct irradiation, irradiation after surgical flap raising and photodynamic therapy.

RESULTSFollow up between 2 - 5 years revealed the treatment results as follows: excellent is 79.24%, good is 14.31% and poor is 6.45%.

CONCLUSIONSLaser therapy is one of the best method to treat venous malformations and hemangiomas. The key point is to apply different lasers properly.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Arteriovenous Malformations ; surgery ; Child ; Child, Preschool ; Face ; blood supply ; Follow-Up Studies ; Hemangioma ; surgery ; Humans ; Infant ; Infant, Newborn ; Jaw ; blood supply ; Laser Coagulation ; methods ; Middle Aged ; Mouth ; blood supply ; Young Adult

Adult ; Hemangioma, Cavernous ; surgery ; Humans ; Intestinal Neoplasms ; surgery ; Intestine, Small ; blood supply ; transplantation ; Male ; Mesentery ; surgery ; Pancreaticoduodenectomy ; methods ; Transplantation, Autologous

OBJECTIVE: To treat superficial hemangioma in children according to the local blood flow. METHODS: A total of 98 children with superficial hemangiomas admitted to our hospital from January 2005 to June 2009, and their clinical data were analyzed. RESULTS: According to the local blood flow velocity, 98 children were treated with injections or injection plus surgical treatment, respectively. Ninety-four children (95.9%) were cured. CONCLUSION Injection therapy is effective for children with superficial hemangioma, but we should arrange individualized treatment according to the local blood flow in children.
Adolescent ; Bleomycin ; administration & dosage ; analogs & derivatives ; Child ; Child, Preschool ; Female ; Glucocorticoids ; administration & dosage ; Hemangioma ; blood supply ; therapy ; Humans ; Infant ; Injections, Intralesional ; Male ; Regional Blood Flow ; Skin Neoplasms ; blood supply ; therapy

OBJECTIVETo study the characteristics of blood flow in common hepatic tumors by 256-slice spiral CT whole-liver perfusion imaging.

METHODSSeventy-one patients with hepatic tumors were examined retrospectively by 256-slice spiral CT whole-liver perfusion. Among them, twenty-seven cases were of primary hepatic cancer, twenty-four cases of hepatic hemangioma, and twenty cases of hepatic metastases.Regions of interest (ROIs) were placed in the tumor parenchyma (Area A), peritumoral hepatic parenchyma (Area B), and normal hepatic parenchyma (Area C), respectively. The time density curves (TDC) were drawn, and perfusion parameters including hepatic arterial perfusion(HAP), portal venous perfusion(PVP), total liver perfusion(TLP) and hepatic erfusion index(HPI) were obtained. The values of ROIs were measured, and the perfusion parameters in the areas A, B, C of different hepatic tumors were statistically analyzed.

RESULTSThe values of HAP, PVP, HPI in the tumor parenchyma of primary hepatic carcinoma were (20.00 ± 11.41)ml · min(-1) · 100 ml(-1,) (32.31 ± 21.06)ml · min(-1) · 100 ml(-1,) (52.31 ± 30.55)ml · min(-1) · 100 ml(-1,) and (39.67 ± 11.19)%, showing significant difference as compared with those in peritumoral hepatic parenchyma and in normal hepatic parenchyma(P<0.05). The values of HAP, TLP, and HPI in the tumor parenchyma of hepatic hemangioma were (40.39 ± 29.23)ml · min(-1) · 100 ml(-1,) (132.72 ± 132.65) ml · min(-1) · 100 ml(-1,) and (35.51 ± 15.12)%, were significantly different as compared with those in the peritumoral hepatic parenchyma and in normal hepatic parenchyma(P<0.05). The values of HAP, PVP, HPI in the tumor parenchyma of hepatic metastases were (17.43 ± 12.27)ml · min(-1) · 100 ml(-1,) (36.19 ± 34.99) ml · min(-1) · 100 ml(-1,) and (37.86 ± 14.49)%, significantly different as compared normal hepatic parenchyma (P<0.05). The HAP, PVP, and TLP of tumor tissue and the PVP and HPI of peritumoral tissue in different hepatic tumors were statistically significantly different (P<0.05).

CONCLUSIONSThe multi-slice spiral CT whole-liver perfusion has certain value in the diagnosis of common hepatic tumors. Perfusion parameters in different areas of common hepatic tumors have their own hemodynamic characteristics.

Carcinoma, Hepatocellular ; blood supply ; diagnostic imaging ; Hemangioma ; blood supply ; diagnostic imaging ; Hepatic Artery ; diagnostic imaging ; physiology ; Humans ; Liver ; blood supply ; Liver Neoplasms ; blood supply ; diagnostic imaging ; secondary ; Perfusion Imaging ; Portal Vein ; diagnostic imaging ; physiology ; Regional Blood Flow ; Retrospective Studies ; Tomography, Spiral Computed