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Carrasco R.,Ramon y Cajal University Hospital | Pascual J.M.,La Princesa University Hospital | Medina-Lopez D.,Ramon y Cajal University Hospital | Burdaspal-Moratilla A.,Ramon y Cajal University Hospital
Surgical Neurology International | Year: 2012

Background: Acute neurological deterioration and death in a patient harboring a colloid cyst of the third ventricle remains a poorly understood phenomenon. Sudden neurological derangement caused by spontaneous bleeding within a colloid cyst is a rare and potentially fatal event, usually requiring immediate diagnosis and emergency surgical treatment. Case Description: A 47-year-old male presented with acute right-sided hemiparesis and speech impediment, followed by rapid deterioration of consciousness. Neuroimaging studies showed a rounded mass at the roof of the anterior third ventricle, causing biventricular hydrocephalus along with a left-sided basal ganglia hematoma. The lesion showed scattered foci of a recent hemorrhage which extended into the left lateral ventricle. Surgical treatment involved emergency external ventricular drainage followed by the prompt elective total resection of the lesion via a transcallosal route. Pathological findings confirmed the diagnosis of a colloid cyst with focal areas of vascular congestion and blood extravasation within its wall. Conclusions: Spontaneous bleeding into a colloid cyst of the third ventricle may cause acute obstructive hydrocephalus and intracranial hypertension due to rapid enlargement of the lesion. This event may account for the sudden neurological deterioration and/or death observed in a previously asymptomatic patient. The diagnosis of hemorrhagic phenomena within a colloid cyst represents a challenge due to the variable signal usually displayed by these lesions on computed tomography (CT) and magnetic resonance imaging (MRI). Emergency ventricular drainage followed by elective tumoral removal constitutes a valid and safe treatment strategy. Copyright © 2012 Carrasco R. Source


Prieto R.,University of San Carlos | Pascual J.M.,La Princesa University Hospital | Subhi-Issa I.,University of San Carlos | Jorquera M.,University of San Carlos | And 2 more authors.
World Neurosurgery | Year: 2013

Background: Recurrence of craniopharyngiomas (CPs) represents a frequent and unpredictable incident. Rapid tumor recurrence within a few months after surgery has been rarely reported. Nondefinitive predictive factors for rapid CP recurrence have been identified to date. We have systematically analyzed the tumor factors that presumably influence in CP recurrence. Methods: We present the histologic and immunohistochemical analysis of an infundibulo-tuberal CP that was operated twice within a 3-month interval due to rapid recurrence. We investigated the differential characteristics of the subgroup of CPs that recurred in large surgical series published in the literature, along with cases reporting rapid tumor recurrence after surgery. Results: Specimens of our patient showed an adamantinomatous CP with whorl-like arrays and thick peritumoral gliosis. Ki-67 labeling index in primary and recurrent samples was 20% and 15%, respectively. p53 labeling index was 18% and 15%, respectively. The thorough analysis of literature showed that presence of tumor remnants and missing radiotherapy treatment after subtotal removal are strong predictors of tumor recurrence. Third ventricle involvement, large tumor size, tight adherence to surrounding structures, and presence of whorl-like arrays might also foster recurrence. High Ki-67 levels, p53 expression, and an intense reactive gliosis might point to rapid tumor growth. Conclusions: Reliable tumor markers that predict CP recurrence are still lacking. The CP features presumably related to a higher risk of its recurrence are thought to be a larger tumor size, a tight adherence to the hypothalamus, the presence of whorl-like arrays, and high Ki-67 and p53 levels. © 2013 Elsevier Inc. All rights reserved. Source


Ramos-Levi A.M.,La Princesa University Hospital | Matia P.,Complutense University of Madrid | Cabrerizo L.,Complutense University of Madrid | Barabash A.,Complutense University of Madrid | And 4 more authors.
Journal of Diabetes | Year: 2014

Background: Type 2 diabetes (T2D) remission may be achieved after bariatric surgery (BS), but rates vary according to patients' baseline characteristics. The present study evaluates the relevance of several preoperative factors and develops statistical models to predict T2D remission 1 year after BS. Methods: We retrospectively studied 141 patients (57.4% women), with a preoperative diagnosis of T2D, who underwent BS in a single center (2006-2011). Anthropometric and glucose metabolism parameters before surgery and at 1-year follow-up were recorded. Remission of T2D was defined according to consensus criteria: HbA1c <6%, fasting glucose (FG) <100mg/dL, absence of pharmacologic treatment. The influence of several preoperative factors was explored and different statistical models to predict T2D remission were elaborated using logistic regression analysis. Results: Three preoperative characteristics considered individually were identified as the most powerful predictors of T2D remission: C-peptide (R2=0.249; odds ratio [OR] 1.652, 95% confidence interval [CI] 1.181-2.309; P=0.003), T2D duration (R2=0.197; OR 0.869, 95% CI 0.808-0.935; P<0.001), and previous insulin therapy (R2=0.165; OR 4.670, 95% CI 2.257-9.665; P<0.001). High C-peptide levels, a shorter duration of T2D, and the absence of insulin therapy favored remission. Different multivariate logistic regression models were designed. When considering sex, T2D duration, and insulin treatment, remission was correctly predicted in 72.4% of cases. The model that included age, FG and C-peptide levels resulted in 83.7% correct classifications. When sex, FG, C-peptide, insulin treatment, and percentage weight loss were considered, correct classification of T2D remission was achieved in 95.9% of cases. Conclusion: Preoperative characteristics determine T2D remission rates after BS to different extents. The use of statistical models may help clinicians reliably predict T2D remission rates after BS. © 2014 Ruijin Hospital, Shanghai Jiaotong University School of Medicine and Wiley Publishing Asia Pty Ltd. Source


Castro-Dufourny I.,Sureste University Hospital | Carrasco R.,Ramon y Cajal University Hospital | Prieto R.,Puerta Of Hierro University Hospital | Barrios L.,Computing Center | Pascual J.M.,La Princesa University Hospital
Pituitary | Year: 2015

Purpose: Infundibulo-tuberal syndrome groups endocrine, metabolic and behavioral disturbances caused by lesions involving the upper neurohypophysis (median eminence) and adjacent basal hypothalamus (tuber cinereum). It was originally described by Henri Claude and Jean Lhermitte in 1917, in a patient with a craniopharyngioma. This study investigates the clinical, pathological and surgical evidence verifying the infundibulo-tuberal syndrome caused by craniopharyngiomas (CPs). Methods: A systematic retrospective review of craniopharyngiomas reported in French literature between 1705 and 1973 was conducted. A total of 128 well described reports providing a comprehensive clinical and pathological description of the tumors were selected. This series represents the historical French cohort of CPs reported in the pre-CT/MRI era. Results: Three major syndromes caused by CPs were categorized: pituitary syndrome (35 %), infundibulo-tuberal syndrome (52 %) and hypothalamic syndrome (49 %). CP topography was significantly related to the type of syndrome described (p < 0.001). Infundibulo-tuberal syndrome occurred in CPs which replaced or invaded the third ventricle floor. In contrast, the majority of sellar/suprasellar CPs growing below the third ventricle showed a pituitary syndrome (82 %). Cases with hypothalamic syndrome were characterized by anatomical integrity of the pituitary gland and stalk (p = 0.033) and occurred predominantly in adults older than 41 years old (p < 0.005). Among infundibulo-tuberal symptoms, abnormal somnolence was not related with the presence of hydrocephalus. All squamous-papillary CPs presented psychiatric disturbances (p < 0.001). Conclusion: This historical CP cohort evidences a clinical-topographical correlation between the patient’s type of syndrome and the anatomical structures involved by the tumor along the hypophysial-hypothalamic axis. © 2014, Springer Science+Business Media New York. Source


Lewis R.B.,American Institute for Radiologic Pathology | Lewis R.B.,Uniformed Services University of the Health Sciences | Mehrotra A.K.,The Joint Pathology Center | Rodriguez P.,La Princesa University Hospital | And 3 more authors.
Radiographics | Year: 2014

Gastrointestinal (GI) lymphoma encompasses a heterogeneous group of neoplasms that have a common lymphoid origin but variable pathologic and imaging features. Extranodal marginal zone B-cell lymphoma (ENMZL) and diffuse large B-cell lymphoma (DLBCL) are the most common. ENMZL usually occurs in the stomach, where it is associated with chronic infection by Helicobacter pylori, and is typically a superficial spreading lesion that causes mucosal nodularity or ulceration and mild wall thickening. DLBCL may arise de novo or from transformation of ENMZL or other low-grade lymphomas. This form of lymphoma produces extensive wall thickening or a bulky mass, but obstruction is uncommon. Mantle cell lymphoma is the classic cause of lymphomatous polyposis, but multiple polyps or nodules can also be seen with ENMZL and follicular lymphoma. Burkitt lymphoma is usually characterized by an ileocecal mass or wall thickening in the terminal ileum in young children, often in the setting of widespread disease. Primary GI Hodgkin lymphoma, which is rare, may be manifested by a variety of findings, though stenosis is more common than with non-Hodgkin lymphoma. Enteropathy-associated T-cell lymphoma is frequently associated with celiac disease and is characterized by wall thickening, ulceration, and even perforation of the jejunum. Accurate radiologic diagnosis of GI lymphoma requires a multifactorial approach based on the clinical findings, site of involvement, imaging findings, and associated complications. © RSNA, 2014. Source

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