Diffuse Lipomatosis of the Thyroid Gland

Pathology Reporting of Resected Pancreatic/Periampullary Cancer Specimen

Pancreatic specimens have always been a great challenge for surgical pathologists due to their anatomic complexity and the difficulty of becoming familiar with these specimens. However, pancreatic specimens are becoming more and more common in many hospitals because of the improvements in surgical techniques and perioperative care that have dramatically reduced the postoperative mortality rate.

Evaluación de la calidad de los diagnósticos premortem de causas de muerte en las autopsias del Hospital Clínico Universitario de Valencia (1985-1992)

Se estudiaron 998 autopsias realizadas en el Servicio de Anatomía Patológica del Hospital Clínico Universitario de Valencia entre 1985 y 1992, introducidas y procesadas en el Sistema Automatizado de Registro y Control de Anatomía Patológica (SARCAP) en el Hospital «Hermanos Ameijeiras» de La Habana, Cuba. Los principales resultados fueron: predominio del sexo masculino y las edades avanzadas; las principales causas básicas de muerte fueron los tumores malignos, la ateromatosis coronaria, la cirrosis hepática y el SIDA, y las principales causas directas de muerte fueron la bronconeumonía, la extensión del cáncer y el tromboembolismo pulmonar. Hubo 10,6% de discrepancias diagnósticas premorte…

Immunocytochemical typification of mesothelial cells in effusions: in vivo and in vitro models.

We have performed immunocytochemical, immunoelectron microscopy, Western blot, and culture techniques using monoclonal antibodies against cytokeratin, vimentin, and desmin on 17 benign and 20 malignant effusions of pleural and ascitic origin. Triple coexpression of these three antigens was observed in benign reactive mesothelial cells as well as in one case of mesothelioma. All metastatic adenocarcinoma cells were consistently negative to desmin and positive to cytokeratin and vimentin. Present results were helpful to distinguish reactive and malignant mesothelioma from metastatic carcinoma cells in effusions.

Quistes de uraco en adultos. Presentación de 3 casos y revisión de la literatura

Resumen El uraco es un grueso cordon fibroso que aparece a partir del quinto mes de gestacion como consecuencia de la obliteracion de la alantoides. Los quistes de origen uracal se producen como consecuencia de un defecto en la obliteracion de dicho conducto, anomalia que se detecta principalmente en ninos y raramente en adultos. Presentamos 3 casos de quistes uracales en adultos, uno de ellos detectado durante el estudio de dolor abdominal y los otros 2 hallados de forma incidental durante el estudio de otras patologias. En ningun caso se sospecho clinicamente la posibilidad de quistes uracales. Histologicamente, estas lesiones se encuentran revestidas por epitelio de tipo urotelial con ex…

mRNA expression profiles obtained from microdissected pancreatic cancer cells can predict patient survival

// Ana-Barbara Garcia-Garcia 1, 2, * , M. Carmen Gomez-Mateo 3, 7, * , Rebeca Hilario 2 , Pilar Rentero-Garrido 2 , Alvaro Martinez-Domenech 4 , Veronica Gonzalez-Albert 2 , Andres Cervantes 5 , Pablo Marin-Garcia 6 , Felipe Javier Chaves 1, 2 , Antonio Ferrandez-Izquierdo 3 and Luis Sabater 4 1 CIBER of Diabetes and Associated Metabolic Diseases (CIBERDEM), Madrid, Spain 2 Unidad de Genomica y Diagnostico Genetico. Fundacion Investigacion Clinico de Valencia, Instituto de Investigacion Sanitaria Clinico de Valencia (INCLIVA), Valencia, Spain 3 Department of Pathology, Faculty of Medicine and Odontology, University of Valencia and Clinical Hospital of Valencia, and Instituto de Investigacio…

Borderline resectable pancreatic cancer. Challenges and controversies.

Abstract Pancreatic cancer is a dismal disease with an increasing incidence. Despite the majority of patients are not candidates for curative surgery, a subgroup of patients classified as borderline resectable pancreatic cancer can be selected in whom a sequential strategy of neoadjuvant therapy followed by surgery can provide better outcomes. Multidisciplinary approach and surgical pancreatic expertise are essential for successfully treating these patients. However, the lack of consensual definitions and therapies make the results of studies very difficult to interpret and hard to be implemented in some settings. In this article, we review the challenges of borderline resectable pancreatic…

Scanning electron microscopic evidence for neural differentiation in Ewing's sarcoma cell lines.

A number of recent studies have suggested a relationship between Ewing's sarcoma (ES) and other small round cell tumours of childhood such as peripheral neuroepithelioma (PN). We report scanning electron microscopic studies on the character of induced neural differentiation in ES, neuroblastoma, PN, osteosarcoma and colon carcinoma. We found evidence of neural differentiation in both neural lines and in one of two Ewing's lines before treatment. After differentiation, both Ewing's and neural lines developed neuritic processes with varicosities and little arborization, except for the initially undifferentiated Ewing's line (A4573) which displayed extensive lateral sprouting from neuritic pro…

Srebf2 Locus Overexpression Reduces Body Weight, Total Cholesterol and Glucose Levels in Mice Fed with Two Different Diets

Macronutrients represent risk factors for hyperlipidemia or diabetes. Lipid alterations and type 2 diabetes mellitus are global health problems. Overexpression of sterol regulatory element-binding factor (Srebf2) in transgenic animals is linked to elevated cholesterol levels and diabetes development. We investigated the impact of increased Srebf2 locus expression and the effects of control and high-fat, high-sucrose (HFHS) diets on body weight, glucose and lipid metabolisms in transgenic mice (S-mice). Wild type (WT) and S-mice were fed with both diets for 16 weeks. Plasma glucose, insulin and lipids were assessed (n = 25). Immunostainings were performed in liver, pancreas and fat (N = 10).…

Immunohistochemical Characterization of 130 Cases of Primary Hepatic Carcinomas

Primary liver carcinoma (PLC) may express a certain number of markers. Here we communicate results of an analysis of five such markers (alpha-1-antitrypsin--AAT--, carcino-embryonic antigen --CEA--, alpha-fetoprotein --AFP--, and superficial --HBsAg-- and core --HBcAg-- antigens of hepatitis B virus) by means of PAP techniques in 130 cases of PLC, comparing the neoplastic tissue and the non-tumorous liver. Three variants of PLC are distinguished: hepatocarcinoma (HC) (108 cases); cholangiocarcinoma (CC) (19 cases); and three cases of hepatocholangiocarcinoma (HCC). AAT was positive in 29 HC, 2 HCC, and negative in all 19 CC. CEA appeared positive in 16 HC, 16 CC and only one HCC. AFP was po…