Histology and Classification of TumorsNeoplasia (tumors) are abnormal tissue proliferations, which develop exceeding normal tissue, uncoordinated with it. This uncontrolled tissue growing may continue even after cessation of the etiologic factor (self-maintaine… Read More
Histology and Explanation of acute PyelonephritisAcute pyelonephritis is an exudative purulent localized inflammation of kidney and renal pelvis. The renal parenchyma presents in the interstitium abscesses (suppurative necrosis), consisting in purulent exudate (pus): neutro… Read More
Histology and Explanation of Squamous cell PapillomaSquamous cell papilloma (verruca vulgaris) is a benign epithelial tumor. Tumor cells proliferate and produce finger-like or warty projections; secondary, the subjacent vessels and connective tissue (fibrovascular core) grows … Read More
Histology and Explanation of Tuberculous LymhadenitisTuberculous lymphadenitis is a chronic specific granulomatous inflammation with caseation necrosis. The characteristic morphological element is the tuberculous granuloma (caseating tubercule) : giant multinucleated cells (Lan… Read More
Histology and Explanation of Purulent MeningitisPurulent leptomeningitis (suppurative leptomeningitis) is a diffuse purulent inflammation. The leptomeninges (arachnoida and piamater) contain purulent exudate (pus): leukocytes (neutrophils), fibrin, germs, proteins, necroti… Read More
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