How rare is isolated rheumatic tricuspid valve disease?

The incidence of rheumatic fever (RF) has markedly decreased in Europe since the beginning of the 20th century due to improved living conditions, early antibiotic therapy in streptococcal pharyngitis, and changes in serotypes of circulating streptococci. Isolated outbreaks of RF are still found in various parts of the world and the disease has changed its presentation with milder joint symptoms and subclinical carditis that make the correct diagnosis more difficult. Patients can present many years later with severe valve disease and significant disability. This article presents a case of isolated rheumatic tricuspid valve disease that presented with signs and symptoms of right heart failure and severe valve damage. Isolated involvement of the tricuspid valve is rarely found in rheumatic fever and a thorough differential diagnosis is needed

Huge Mesenteric Lymphangioma – A Rare Cause of Acute Abdomen

Lymphangiomas are benign congenital masses which occur most commonly in head and neck of children and incidence of mesenteric lymphangiomas is very rare. We report such a case of huge mesenteric lymphangioma in a 20 year old male who presented to us with acute abdomen. Pre-operative diagnosis is difficult due to silent clinical course and lack of awareness of the clinical and morphological features of this disease.Keywords: Benign tomours; Congenital masses; Lymphangioma

Comportamiento Biológico de Implantes Tendinosos Autógenos Intraarticulares. Interfase con los distintos medios receptores

En el presente trabajo se ha efectuado un estudio experimental de la respuesta biológica de implantes intraarticulares de tendones autógenos insertados en canales óseos. Se ha seguido, mediante microscopía óptica y electrónica, la revascularización de los implantes, los cambios tendinosos intrínsecos y, fundamentalmente, la interfase establecida entre la estructura tendinosa y los distintos medios del lecho receptor. En las zonas bañadas por líquido sinovial se produce "sinovialización", con presencia de sinoviocitos A (aspecto macrofágico) y B (aspecto fibroblástico). En las zonas que delimitan con cartílago aparece una hendidura, cuya superficie tendinosa es también sinovializada. En la interfase hueso-tendón se pueden diferenciar zonas de aposición lateral y termino-terminales. Las primeras muestran fenómenos de remodelación (presencia de abundantes osteoblastos y osteoclastos) y dispositivos arciformes de las fibras colágenas que "anclan" el tendón a trabéculas óseas. En las zonas término-terminales se establece continuidad entre la colágena del tendón y del hueso. En las regiones en que el tendón se relaciona con el tejido adiposo de la médula ósea, se produce también continuidad entre fibras colágenas pertenecientes a ambos componentes.The authors presented an experimental work in rabbits. They rewiewed the revascularization an morfology ("Sinovialization" and "Ligamentation") of tendon autograft used to replace the anterior cruciate ligament (18 rabbits studied) by histological techniques

How rare is isolated rheumatic tricuspid valve disease?

The incidence of rheumatic fever (RF) has markedly decreased in Europe since the beginning of the 20th century due to improved living conditions, early antibiotic therapy in streptococcal pharyngitis, and changes in serotypes of circulating streptococci. Isolated outbreaks of RF are still found in various parts of the world and the disease has changed its presentation with milder joint symptoms and subclinical carditis that make the correct diagnosis more difficult. Patients can present many years later with severe valve disease and significant disability. This article presents a case of isolated rheumatic tricuspid valve disease that presented with signs and symptoms of right heart failure and severe valve damage. Isolated involvement of the tricuspid valve is rarely found in rheumatic fever and a thorough differential diagnosis is needed

Comportamiento Biológico de Aloinjertos Tendinosos Intraarticulares.

En el presente trabajo, los autores han efectuado un estudio experimental de la respuesta biológica de aloinjertos tendinosos, implantados en el interior de la articulación de la rodilla. Se ha seguido mediante microscopía óptica y micoscopía electrónica, la revascularización de los implantes y los cambios tendinosos intrínsecos, tanto en la serie de aloinjertos en "fresco", como de aloinjertos congelados. En los aloinjertos en fresco, predomina la intensa respuesta inflamatoria -inmunitaria, siendo la respuesta reparadora de escasos signos de orientación del tejido fibroso definitivo. En la serie de injertos congelados, los fenómenos inflamatorios son escasos, predominando la angiogénesis.In this paper, the authors have studied the biological respons e of tendinous allografts, implanted inside the kne e articulation, in a experimental study. The revascularization of the grafts, and the intrinsic tendinous change s in both series, frozen and no frozen allografts, is studied with optical and electron microscopy. In the no frozen allografts, is more important the intensive inflamatory inmunitary response, with few signs of orientation of the definitive fibrous tissue. In the serie of frozen allografts, the inflamatory response is limited with predominanc e of the angiogénesis process

Fundamentals Of Image Compression & Comparative Study Of Relative Study Of JPEG & Hybrid(DWT+DCT) Model

ABSTRACT-In this paper we have discussed the fundamentals of image compression and compared the results of JPEG and a Hybrid model. In hybrid model we have used DWT (Discrete Wavelet Transform) and DCT (Discrete cosine Transform) for transform mapping. As we know that DWT has its multi resolution property which is helpful for image compression. As in JPEG 2000 also DWT is used but EBCOT (Embedded Block Code for Optimal Truncation) coding has high computational complexity. For JPEG we have taken results for different quality factor values and for hybrid model also we have taken results for different quality factor values and compared it is observed that for very less variation in PSNR value compression ratio has increased considerably

Triterpenes from Calophyllum inophyllum Linn.

Chemical investigation of the dichloromethane extracts of Calophyllum inophyllum Linn. afforded friedelin (1), squalene (2), canophyllic acid (3), and a mixture of canophyllalic acid (4a) and canophyllol (4b) from the leaves; and 1 and taraxasterol (5) from the twigs. The structures of 3-5 were elucidated by extensive 1D and 2D NMR spectroscopy, while those of 1 and 2 were identified by comparison of their NMR data with those reported in the literature