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Bronchoalveolar Lavage (BAL) and sputum are commonly used respiratory specimens. Still, they differ significantly in terms of source, quality, diagnostic value, and clinical utility, especially in patients with tuberculosis, fungal infections, pneumonia, and oncology. Basic Definition Feature BAL Sample Sputum Sample Definition Expectorated respiratory secretion …
Introduction Ovarian cancer is a malignant tumor arising from ovarian tissues and is a leading cause of gynecologic cancer–related mortality worldwide. It is often called a “silent killer” because early-stage disease is frequently asymptomatic, resulting in late diagnosis and poorer outcomes. Types of Ovarian Cancer …
Introduction Sabouraud Dextrose Agar (SDA) is a commonly used culture medium in clinical mycology laboratories for the isolation of fungi, particularly yeasts and molds. Due to its acidic pH and high dextrose concentration, SDA favors fungal growth; however, bacteria and yeasts may also grow, especially …
1. Introduction Head and neck cancers (HNCs) are a heterogeneous group of malignancies arising from the upper aerodigestive tract, including the oral cavity, pharynx, larynx, nasal cavity, paranasal sinuses, salivary glands, and thyroid. The majority are squamous cell carcinomas (HNSCC) originating from mucosal epithelium. These …
1. Introduction Kidney cancer, also called renal cancer, arises from the malignant transformation of renal parenchymal cells. The most common form is renal cell carcinoma (RCC), originating from the renal tubular epithelium. It represents one of the top urological malignancies worldwide and is increasingly detected …
1. Introduction Prostate cancer is a malignant tumor arising from the epithelial cells of the prostate gland. It is one of the most common cancers in men, particularly affecting older age groups. The disease often progresses slowly but may become aggressive in advanced stages. 2. …
1. Introduction Rectal cancer is a malignant tumor arising from the epithelial lining of the rectum, the terminal part of the large intestine. It accounts for a significant proportion of colorectal cancers and is a major cause of cancer-related morbidity and mortality worldwide. Early detection …
Introduction Pancreatic cancer is a highly aggressive malignancy arising from the exocrine or endocrine pancreas, most commonly from the pancreatic ductal epithelium. It is associated with a poor prognosis due to late presentation and early metastasis. Types of Pancreatic Cancer Pathogenesis Laboratory Diagnosis Treatment Prevention …