Hemangioma hepático gigante / Giant Hepatic Hemangioma

Introducción: Los hemangiomas hepáticos son lesiones no epiteliales que se observan con mucha frecuencia en piezas quirúrgicas resecadas por otras razones. Los hemangiomas que miden 10 cm o más, denominados "hemangiomas gigantes", pueden producir síntomas, como dolor y manifestaciones de un síndrome de reacción inflamatoria y coagulopatía. Los hemangiomas hepáticos son los tumores hepáticos primarios más frecuentes y están presentes en un 0,4-20 por ciento de la población general y es característico que se detecten de manera accidental durante la evaluación de síntomas abdominales inespecíficos. Objetivo: Presentar a una paciente portadora de un hemangioma gigante y características anatómicas peculiares intervenida quirúrgicamente con buenos resultados y evolución excelente. Caso clínico: Paciente de sexo femenino de 24 años de edad, portadora de un Hemangioma hepático gigante en segmento lateral, con variante anatómica vascular que dificultó la embolización y facilitó la cirugía. Se realizó una lobectomía hepática izquierda con una evolución clínica satisfactoria y sin complicaciones. Conclusiones: Las resecciones quirúrgicas de hemangiomas gigantes sintomáticos son una opción terapéutica segura y muy válida ante el fracaso de la embolización(AU)

Introduction: Hepatic hemangiomas are nonepithelial lesions much frequently observed in surgical specimens resected for other reasons. Hemangiomas ten centimeters or more, called "giant hemangiomas," can cause symptoms such as pain, as well as manifestations of an inflammatory reaction syndrome and coagulopathy. Hepatic hemangiomas are the commonest primary hepatic tumors, are present in 0.4-20 percent of the general population, and are typically accidentally detected during the evaluation of nonspecific abdominal symptoms. Objective: To present the case of a patient with a giant hemangioma and unusual anatomical characteristics, who underwent surgery with good outcome and excellent evolution. Clinical case: 24-year-old female patient with a giant hepatic hemangioma in the lateral segment, with a vascular anatomical variant that made embolization difficult and facilitated surgery. A left hepatic lobectomy was performed with satisfactory and uncomplicated clinical evolution. Conclusions: Surgical resections of symptomatic giant hemangiomas are a safe and very valid therapeutic option in case of embolization failure(AU)

Surgical Treatment of Cavernous Angiomas in the Pineal Gland ­ Case Report

Pineal cavernous angioma is a vascular malformation that has a prevalence lower than 1%. The etiology is debated. It is believed that it is originated from an autosomal dominant inheritance or from radiotherapeutic treatment. Complete resection enables the cure and prevents complications of the natural evolution of the lesion, mainly hemorrhagic events. A female patient, with 67 years of age, presented mental confusion and visual acuity deficit, which evolved to periods of psychomotor agitation. A magnetic resonance imaging (MRI) scan of the head showed a lobulated mass lesion in the pineal region with hypersignal on T1 and hyposignal on the susceptibility weighted imaging (SWI) sequence. Hydrocephalus was also noticed. The patient underwent a microsurgery for complete lesion resection though a supracerebellar/ supratentorial access. The anatomopathology revealed an arteriovenous malformation compatible with cavernous angioma. The pineal cavernous angioma is a rare malformation that should be considered in the differential diagnosis of expansive lesions of the pineal gland.

Hemangioma cavernoso mediastinal / Mediastinal cavernous hemangiomas

Hemangiomas mediastinais são raras lesões intratorácicas, correspondendo a aproximadamente 0,5% de todos os tumores mediastinais. Geralmente, apresentam-se nas primeiras quatro décadas de vida. O tumor descrito neste relato de caso foi diagnosticado em uma mulher de 30 anos assintomática, de forma incidental em um RX de tórax. É um tumor extremamente raro, que se enquadra no diagnóstico diferencial de tumores primários do mediastino, cujo tratamento é cirúrgico. Discutem-se a abordagem diagnóstica e a estratégia terapêutica (AU)

Mediastinal hemangiomas are rare intrathoracic lesions, representing approximately 0.5% of all mediastinal tumors. Generally, they present in the first four decades of life. The tumor described in this case report was diagnosed in an asymptomatic 30-year-old woman, incidentally on a chest x-ray. It is an extremely rare tumor, which falls in the differential diagnosis of primary mediastinal tumors, whose treatment is surgical. Diagnostic approach and therapeutic strategy are discussed (AU)

Cavernous Hemangioma of the Ilium Mimicking Aggressive Malignant Bone Tumor with Increased Activity on 18F-FDG PET/CT

Osseous hemangioma is a benign vascular tumor, and it usually occurs in the vertebrae and the skull. However, hemangiomas of flat bones are rare, and there are very few reports that describe the radiologic findings of osseous hemangioma of the ilium. We report a unique case of large cavernous hemangioma mimicking a chondrogenic malignant bone tumor originated from the ilium in a 22-year-old female. The mass showed stippled calcifications, heterogeneous enhancement with thick septa and enhanced soft tissue components on CT and MR, and also this mass demonstrated heterogeneous 2-fluoro [fluorine-18]-2-deoxy-D-glucose (18F-FDG) uptake on 18F-FDG PET/CT.

Cavernous angioma of the knee: a case report

Cavernous hemangiomas are uncommon lesions and, as such, may enter the differential diagnosis of other lesions encountered more frequently in clinical practice, including pigmented villonodular synovitis and traumatic hemarthrosis. We report an illustrative case in a young patient in the Rheumatology Department of University Hospital of Fez in Morocco. The aim of our work is: To present to the reader this rare pathology. Of which the diagnosis can be late or misdiagnosed because of the non specificity of symptoms and the underestimation of this pathological entity. To assess the contribution of magnetic resonance imaging [MRI] in the diagnosis and surgical planning of synovial hemangioma of the knee. A 19 year old single Morrocan woman who presented a non specific chronic knee tumefaction secondary to cavernous angioma confirmed radiologically and histologically, with a good evolution after surgery. Cavernous hemangioma of the knee is a frequently misdiagnosed lesion. MRI is the exploration of choice for this vascular tumor of the synovial membrane, although a pathology study is needed to confirm the diagnosis. Early surgical treatment with excision of the tumor within wide margins of uninvolved normal synovial tissue as partial or total synovectomy is the therapy of choice

Accuracy of gray-scale and color doppler sonography in diagnosis of hepatic hemangioma, hepatocellular carcinoma and liver metastasis

Distinguishing cavernous hemangioma from malignant neoplasms represents a diagnostic challenge. Knowledge of the entire spectrum of gray-scale ultrasonography [US] and color Doppler appearances of these tumors is important. The objective of this study was to determine the diagnostic accuracy of gray-scale US and color Doppler appearances of liver tumors. 88 patients with 93 focal hepatic lesions were prospectively studied with gray-scale and color Doppler US. The final diagnoses of the liver lesions as confirmed by pathology or 99mTc-red blood cell scintigraphy were 41 hemangiomas, 15 hepatocellular carcinomas [HCCs] and 37 metastases. 87.8% of hemangiomas and 66.7% of HCCs were hyperechoic, while 54.1% of metastases were hypoechoic. In lesions < 3 cm in diameter, the sensitivity and specificity of the hyperechoic pattern for differentiation of hemangioma from metastasis and HCC were 94.1% and 80.0%, respectively. They were higher than the lesions with a diameter ?3 cm [83.3% and 45.9%, respectively, both P=0.001]. Posterior acoustic enhancement was seen in 78% of hemangiomas [P<0.001], as compared to 24.4% in metastases and 13.3% in HCCs. 10 hemangiomas had an echogenic rim. The peripheral hypoechoic rim, named as the target sign, was seen in 37.8% of metastases, 26.7% of HCCs and 2.4% of hemangiomas [P<0.001]. Most hemangiomas [85.4%] showed no lesional blood flow, while most HCCs [80%] had both intraand peri-lesional vascularity [P<0.001]. There was intratumoral blood flow in 86.7% of HCCs. Lesional flow, whether intratumoral or peritumoral or both, was seen in all 14 patients with HCC while absence of the lesional flow was not noted in any of the HCCs. Most hemangiomas had no detectable blood flow in color Doppler US. Almost all HCCs had intra- and/or peri-tumoral vascularity in color Doppler sonography, so the probability of hepatocellular carcinoma is low in a hepatic mass without intra- or peri-lesional vascular blood flow. So these findings together with morphological criteria may help narrow down the differential diagnosis in certain clinical conditions

Hemodynamical Assessment of Cavernous Hemangioma in Cavernous Sinus Using MR-DSA and Conventional DSA

We report a hemodynamical assessment of the blood turnover pattern as well as the imaging of cavernous hemangioma in a cavernous sinus using time-resolved contrast enhanced 2D projection MRA, also known as MR-DSA, and conventional digital subtraction angiography (DSA), before and after radiotherapy. MR-DSA showed very fast dynamical images of a contrast turnover pattern and was well matched with the findings obtained from DSA. MR-DSA is a non-invasive study, and can replace DSA in examining a vascular tumor for the initial work-up and follow-up examination.

Radiologic Findings of Renal Hemangioma: Report of Three Cases

Renal hemangioma is an uncommon benign tumor which usually causes painless or painful gross hematuria. Its preoperative diagnosis is extremely difficult or even impossible. We experienced three cases of renal hemangioma, located mainly at the pelvocalyceal junction or in the inner medulla. US demonstrated variable echogenecity, and CT revealed a lack of significant enhancement. Where there is gross hematuria in a young adult, especially when the renal mass located in the pelvocalyceal junction or inner medulla shows little enhancement on CT, renal heman-gioma should form part of the differential diagnosis.

Diffuse hepatic hemangiomatosis in an adult

Diffuse hepatic hemangiomatosis without extrahepatic lesions is extremely rare in adults. A case of diffuse hepatic hemangiomatosis involving right lobe in a 50-year-old woman was presented. The hemangiomatosis was demonstrated by ultrasonography, computerized tomography (CT) and magnetic resonance image (MRI), and was confirmed histopathologically. Although diffuse hepatic hemangiomatosis is a rare disease in adults, its diagnosis should be considered in patients with diffuse tumor growth in one or both hepatic lobes and distinguished from malignant tumors. The present case is the first documented case of diffuse hepatic hemangiomatosis in an adult in Korea.

Diffuse hepatic hemangiomatosis in an adult

Diffuse hepatic hemangiomatosis without extrahepatic lesions is extremely rare in adults. A case of diffuse hepatic hemangiomatosis involving right lobe in a 50-year-old woman was presented. The hemangiomatosis was demonstrated by ultrasonography, computerized tomography (CT) and magnetic resonance image (MRI), and was confirmed histopathologically. Although diffuse hepatic hemangiomatosis is a rare disease in adults, its diagnosis should be considered in patients with diffuse tumor growth in one or both hepatic lobes and distinguished from malignant tumors. The present case is the first documented case of diffuse hepatic hemangiomatosis in an adult in Korea.