Pathoanatomy exam c-3

Ameloblastoma (№511)– H&E ✅Parenchyma tumor is built from complexes of odontogenic epithelium. The central part of the complexes forms a network of star cells, the peripheral part - a series of cylindrical epitheliocytes. Cysts are visible in the center of the complexes. The tumor stroma is repres…

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Mixed tumor of the salivary gland (Pleomorphic adenoma) (№500)– H&E ✅ The tumor is constructed of three components: epithelial, mixoid and chondroid. Epithelial and myoepitelic cells form tubular and glandular structures. These structures are placed in a mixoid mass with islets of cartilage-like ti…

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Adrenal gland in meningococcal infection (№272)– H&E ✅Histological structure is not determined, layers are not differentiated, founded focuses of necrosis, edema, hemorrhagic necrotizing masses infiltration

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Purulent fibrinous pleurisy (№265)– H&E ✅There is pink fibrinous exudate with leucocytes on the pleural surface. The pleura contains some nonspecific chronic inflammatory cells, chiefly lymphocytes, plasma cells and macrophages.

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Ischemic cerebral infarction (№257) – H&E ✅There is coagulative necrosis of the cerebrum in the affected area. This form of necrosis identified by nuclear changes of karyolysis, pyknosis and karyorrhexis.

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Phlegmon of the subcutaneous fat (№232) – H&E ✅The hypodermic cellular and intermuscular tissue infiltrated by polymorphonuclear leucocytes. The vessels are plethoric

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The kidney in diabetes (PAS-reaction) (№225) ✅There are diffuse involvement of all parts of glomeruli, thickening of hyaline, diffuse increase in mesangial matrix. Capsular drop is an eosinophilic hyaline thickening of the parietal layer of Bowmaǹ̀′s capsule and bulges into the glomerular space. …