Malignant Effusion
Malignant Effusion - Related Videos
03:48
Behavior of Gas Molecules: Molecular Diffusion, Mean Free Path, and Effusion
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2020
Although gaseous molecules travel at tremendous speeds (hundreds of meters per second), they collide with other gaseous molecules and travel in many different directions before reaching the desired target. At room temperature, a gaseous molecule will experience billions of collisions per second. The mean free path is the average distance a molecule travels between collisions. The mean free path increases with decreasing pressure; in general, the mean free path for a gaseous molecule will be...
01:25
Pleural Effusion I: Introduction
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2025
Pleural effusion is an abnormal fluid accumulation in the pleural cavity, a narrow space between the lungs and the chest wall. It is not a disease per se but rather a symptom or indication of an underlying disease. In normal circumstances, this space contains a small amount of fluid (5 to 15 mL), a lubricant facilitating the non-frictional movement of the pleural surfaces. There are two main types of pleural effusion: transudative and exudative. They are differentiated using Light's criteria,...
01:28
Pleural Effusion II: Symptoms and Management
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2024
Pleural Effusion Overview A pleural effusion is the abnormal collection of fluid between the parietal and visceral pleura layers of tissue that form the lining of the lungs and chest cavity. It can occur independently or due to surrounding parenchymal diseases, such as infection, malignancy, or inflammatory conditions. Clinical Manifestations: • Pneumonia-Related Effusion: Patients may experience fever, chills, and pleuritic chest pain, indicative of an infection-related effusion. •...
08:32
Isolating Malignant and Non-Malignant B Cells from lck:eGFP Zebrafish
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Cited by 9 •
2019
Transgenic lck:eGFP zebrafish express GFP highly in T lymphocytes, and have been used to study T cell development and acute lymphoblastic leukemia. This line can be used to study B cells, which express lck at lower levels. This protocol describes purification of malignant and non-malignant B cells from lck:eGFP zebrafish.
03:22
Local Anesthetic Thoracoscopy for Undiagnosed Pleural Effusion
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Cited by 4 •
2023
Local anesthetic thoracoscopy (LAT) is essential for diagnosing recurrent, undiagnosed pleural effusion when a guideline-based workup fails to provide a specific cause. LAT can be performed as a day-case procedure by chest physicians. Here, we present a step-by-step approach for a successful and safe procedure.
FAQs
Tumors can promote fluid buildup through several interacting mechanisms. Cancer cells may invade the lining of a body cavity, interfere with lymphatic drainage, or provoke inflammation that alters normal fluid production and removal. Because these mechanisms disrupt fluid balance rather than reflecting a single process, the clinical presentation can vary according to the affected cavity and the underlying cancer.
The location of the fluid collection influences the symptoms and clinical concerns. Pleural involvement may be associated with breathlessness, pericardial involvement reflects disease around the heart, and peritoneal involvement can contribute to abdominal distension. Examining the specific cavity helps clinicians connect symptoms with the disease process and select appropriate imaging, fluid testing, and symptom-relieving measures.
Malignant effusion often signals advanced disease because cancer has affected a body cavity or disrupted its normal fluid-handling systems. This finding therefore has significance beyond the fluid itself: it can help clinicians assess disease progression and determine how aggressively to address the underlying cancer. Interpretation still depends on imaging and laboratory evaluation rather than symptoms alone.
Evaluation combines imaging with analysis of the collected fluid. Imaging helps identify and characterize the abnormal accumulation, while laboratory testing examines the fluid’s cellular and biochemical features. Cytology, which looks for cancer cells, can support identification of malignant involvement, and biochemical testing helps characterize the fluid. Together, these findings contribute to diagnosis and treatment planning.
These tests answer complementary questions. Cytology examines whether cancer cells are present in the fluid, supporting assessment of malignant involvement. Biochemical testing characterizes the fluid itself and adds information that cytology cannot provide alone. Used together with imaging and the clinical situation, the results help establish the diagnosis and clarify the significance of the effusion.
Management can address both immediate symptoms and the underlying cancer. Drainage may relieve problems such as breathlessness or abdominal distension, while local procedures can provide additional cavity-directed treatment. Systemic anticancer therapy may target the disease more broadly, and supportive care can be used when symptom control is the primary goal. The selected approach depends on clinical findings and treatment objectives.