Giant Solitary Fibrous Tumor of the Pleura: An Analysis of Five Patients

Ó The Author(s) 2010. This article is published with open access at Springerlink.com Background Solitary fibrous tumor of the pleura (SFTP) represents a clinical entity rarely encountered, especially in giant forms. Complete surgical resection for giant tumor of pleura is a challenge. The aim of this article is to present five new cases of giant SFTP, and to discuss their clinical characteristics and the treatment strategy of such neoplasms. Methods We performed a retrospective review of the clinical records of five patients who underwent surgery for a huge SFTP ([18 cm in diameter) between 2007 and 2009. Results Four patients were symptomatic. All five patients underwent angiography and embolization of the tumorsupplying vessels within 24 h of surgery. All giant tumors were removed completely by extended postlateral thoracotomy with moderate intraoperative bleeding. Two wedge resections and one lobectomy were performed in three cases where the parenchyma had been encroached. Tumors in three patients were pathologically benign; those in the other two were malignant. The symptoms disappeared in all cases after surgery. Conclusions Complete resection remains the mainstay of cure for giant SFTP. We recommend preoperative angiography and embolization for giant SFTP which can reduce the risk of hemorrhage and can contribute to piecemeal removal for radical excision

Persistent Place-Making in Prehistory: the Creation, Maintenance, and Transformation of an Epipalaeolithic Landscape

Most archaeological projects today integrate, at least to some degree, how past people engaged with their surroundings, including both how they strategized resource use, organized technological production, or scheduled movements within a physical environment, as well as how they constructed cosmologies around or created symbolic connections to places in the landscape. However, there are a multitude of ways in which archaeologists approach the creation, maintenance, and transformation of human-landscape interrelationships. This paper explores some of these approaches for reconstructing the Epipalaeolithic (ca. 23,000–11,500 years BP) landscape of Southwest Asia, using macro- and microscale geoarchaeological approaches to examine how everyday practices leave traces of human-landscape interactions in northern and eastern Jordan. The case studies presented here demonstrate that these Epipalaeolithic groups engaged in complex and far-reaching social landscapes. Examination of the Early and Middle Epipalaeolithic (EP) highlights that the notion of “Neolithization” is somewhat misleading as many of the features we use to define this transition were already well-established patterns of behavior by the Neolithic. Instead, these features and practices were enacted within a hunter-gatherer world and worldview

Meningiomas and hormonal receptors: immunohistochemical study in typical and non-typical tumors Meningiomas e receptores hormonais: estudo imuno-histoquímico em tumores típicos e não típicos

The authors assessed 116 cases of meningiomas classified as typical, atypical and anaplastic and they used an immunohistochemical technique for estrogen and progesterone receptors attempting to determine if there is any difference between typical and non-typical tumors in relation to hormone receptors. The immunohistochemical technique to estrogen receptors was negative in all meningiomas studied. Progesterone receptors were detected in 58.3% of typical, and in 48.2% of non-typical meningiomas. This difference was not statistically significant. However, individually considering the criteria used for selection of non-typical tumours, those that concurrently displayed brain invasion and increased mitotic activity or necrosis, as well as the summation of those three features, were predominantly negative for progesterone receptors (respectively p=0.038; p=0.001; and p=0.044). The authors conclude that estrogen receptors were not present in meningiomas; that progesterone receptors in isolation are not enough to predict a higher tumoral malignancy but can be useful associated with other histological features.<br>Os autores avaliam 116 meningiomas classificados em típicos, atípicos ou anaplásicos usando técnica imuno-histoquímica para receptores de estrógeno (ER) e progesterona (PR) com o objetivo de determinar se existe diferença entre tumores típicos e não típicos em relação aos receptores hormonais. Todos os tumores estudados foram negativos para ER. Os receptores de progesterona foram detectados em 58,3% dos meningiomas típicos e em 48,2% dos tumores não-típicos. Essa diferença não foi estatisticamente significativa. Entretanto, considerando os critérios utilizados para seleção dos não-típicos, os tumores que apresentavam, de forma concomitante, invasão do sistema nervoso central e aumento da taxa mitótica ou necrose, bem como a soma das três características, foram predominantemente negativos para PR (p=0,038; 0,01 e 0,044, respectivamente). Os autores concluem que: ERs não estão presentes em meningiomas; PRs estão presentes na maioria dos meningiomas; a negatividade para PR isoladamente não é suficiente para predizer maior malignidade mas pode ser útil se associada a outras características histológicas