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Superior vena cava syndrome (SVCS), is a group of symptoms caused by obstruction of the superior vena cava ("SVC"), a short, wide vessel carrying circulating blood into the heart. The majority of cases are caused by malignant tumors within the mediastinum , most commonly lung cancer and non-Hodgkin's lymphoma , directly compressing or invading ...
A positive Pemberton's sign is indicative of superior vena cava syndrome (SVC), commonly the result of a mass in the mediastinum.Although the sign is most commonly described in patients with substernal goiters where the goiter "corks off" the thoracic inlet, [4] the maneuver is potentially useful in any patient with adenopathy, tumor, or fibrosis involving the mediastinum.
The malformation increases greatly in size with age, although the mechanism of the increase is unknown. [3] Dilation of the great cerebral vein of Galen is a secondary result of the force of arterial blood either directly from an artery via an arteriovenous fistula or by way of a tributary vein that receives the blood directly from an artery.
There is also primary mediastinal B-cell lymphoma with exceptionally good prognosis. [5] [6] [7] Common symptoms of a mediastinal lymphoma of include fever, weight loss, night sweats, and compressive symptoms such as pain, dyspnea, wheezing, Superior vena cava syndrome, pleural effusions. Diagnosis usually by CT showing lobulated
Skin conditions in dogs are very common, so it's important to recognize the symptoms and understand the factors that cause them. Dr. Rebecca MacMillan, a vet with over 15 years of experience, says ...
[4] Adolescent males with the condition have shown to presents with symptoms such as spontaneous lower extremity DVT, leg swelling, leg pain, varices in the lower extremities, hepatic thrombosis and hematochezia. [4] [5] Chylothorax has been observed rarely as a symptom of congenital stenosis of the superior vena cava in infant patients.
Diagnosis of Valley Fever may include multiple tests, including serology and radiology. According to a study performed in the Tucson and Phoenix area, 28% of dogs will test positive for exposure to the fungus by two years of age, but only 6% of the dogs will be ill with clinical disease. [18]
Some dogs are lactose intolerant, but a few dogs are actually allergic to lactose. Those with an allergy will experience more severe symptoms than those who are simply intolerant, though some of ...