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Article |
Description
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Congestive hepatopathy (CVC liver) |
Micrograph showing chronic venous congestion of liver
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Chronic venous congestion of spleen |
Micrograph showing chronic venous congestion of spleen. Sinusoids are dialated. Organized foci of old hemorrhage seen as areas of fibrosis containing brown pigment (hemosiderin).
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Chronic venous congestion of lung |
Lung showing congestion with plenty of alveolar macrophages containing phagocytosed brownish granular hemosiderin pigment.
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Cavernous hemangioma |
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Atheroma aorta |
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Emphysema |
Micrograph of empysema lung showing dialated, large alveoli separated by thin septa. Some septae are ruptured and appear to be floating in the alveloar spaces. Grossly emphysematous lung appears pale and voluminous.
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Squamous cell carcinoma of lung |
Micrograph of squamous Cell Carcinoma Lung. A lobule of polygonal squamous cells with moderate amount of eosinophilic cytoplasm and hyperchromatic nuclei are seen. The islands show abnormal keratinization in the form of epithelial pearls in the centre. These epithelial pearls are whorls or eddies of malignant cells with pink keratin in the centre.
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Bronchoalveolar carcinoma |
Lepidic pattern of growth of tumor cells along the alveolar wall resembling butterfly sitting on fence. Normal alveoli is seen towards right side.
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Tuberculosis of lung |
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Aspergilloma of lung |
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Small cell carcinoma of lung |
Micograph of small Cell Carcinoma Lung. The tumor appears blue because the malignant epithelial cells are small with scanty cytoplasm, nuclei shows finely granulated chromatin. Cells are seen in clusters. There is nuclear overlapping with moulding and crushing.
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Lobar pneumonia |
Lung tissue showing numerous neutrophils with minimal exudates in the alveolar space with septal wall congestion.
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Adenocarcinoma colon |
Micrograph of carcinoma colon showing malignant glands.Nuclei are small and vesicular, located at the bottom of the cell. The cells show increased nucleocytoplasmic ratio.
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Chronic gastric ulcer |
Acute stress ulcer of stomach in erosive gastritis.
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Adenocarcinoma stomach |
Micrograph of carcinoma stomach. The glands are seen infiltrating the muscle layer. The neoplastic cells are arranged in cords and in glandular pattern. The cells show dysplastic features. Signet rings with nucleus pushed to the periphery are seen in some types of adenocarcinoma.
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Squamous cell carcinoma (well-differentiated) |
Well-differentiated squamous cell carcinoma skin showing malignant cells with mild atypia resembling normal squamous epithelial cells with intercellular bridges, individual cell keratinisation and nests of keratin pearls.
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Squamous cell carcinoma (moderately-differentiated) |
Moderately differentiated squamous cell carcinoma showing sheets of malignant squamous cells with marked pleomorphism and individual cell keratinisation. No keratin pearls seen.
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Squamous cell carcinoma (poorly-differentiated) |
Poorly differentiated squamous cell carcinoma showing diffuse sheets of markedly pleomorphic squamous cells with minimal resemblance to squamous differentiation. No definite evidence of keratinisation noted.
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Pleomorphic adenoma |
Micrograph of Pleomorphic Adenoma of Salivary gland. The section shows a cellular area interspersed with islands of lighter stained bluish myxoid tissue. The cellular area is the epithelial element and is composed of cells arranged in sheets and trabeculae. The myxoid areas may resemble cartilage and represent the mesenchymal element.
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Cirrhosis of liver |
Micrograph of liver showing nodules of parenchymal liver cells engulfed by broad bands of fibrous tissue. The liver has lost its normal architecture.
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Fatty liver |
Hepatic parenchymal cell cytoplasm containing clear vacuoles containing fat of varying sizes, displacing the nucleus towards the periphery.
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Serous cystadenoma |
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Mucinous cystadenoma |
Micrograph showing Mucinous Cystadenoma of ovary. The cyst wall is lined by tall columnar epithelium and filled with mucin.
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Dysgerminoma |
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Vesicular mole |
Micrograph of vesicular mole showing oedematous chorionic villus with circumferential proliferation of trophoblasts.
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Products of gestation |
Micrograph showing products of conception. Chorionic villi and decidual tissue are seen.
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Benign cystic teratoma |
Micrograph of Teratoma Ovary showing areas of cartilage, mucous glands, squamous epithelium and hair follicle.
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Seminoma testis |
Micrograph of seminoma testes showing lobules of uniform cells separated by delicate septae of fibrous tissue. These cells can have a distinct outline with clear cytoplasm. The nuclei are large, with central prominent nucleolus.
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Proliferative phase endometrium |
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Leiomyoma uterus |
Micrograph of leiomyoma uterus showing bundles of smooth muscle cells of uniform size and shape. The cells are spindle shaped with oval nucleus.
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Squamous cell carcinoma of cervix |
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Cystic hyperplasia of endometrium |
Micrograph showing cystic hyperplasia of endometrium. Cystically dialated glands are lined by proliferative type of epithelium. Stroma also resembles proliferative phase. No atypia is seen in the cells.
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Secretory endometrium |
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Neuroblastoma |
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Nephroblastoma |
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Retinoblastoma |
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Osteoclastoma |
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Osteosarcoma |
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Plasmacytoma |
Plasma cell showing eccentrically placed round nucleus with cart wheel like chromatin.
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Osteochondroma |
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Hashimoto's thyroiditis |
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Papillary carcinoma thyroid |
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Nodular colloid goitre |
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Glioblastoma multiformae |
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Meningoma |
Concentrically calcified basophilic structure in the centre of the field in a meningioma.
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Fibrocystic disease of breast |
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Infiltrative ductal carcinoma |
Atypical cells with moderate amount of eosinophilic cytoplasm and round to oval dark nucleus with moderate pleomorphism (Papanicolaou, 400X)
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Fibroadenoma |
A well circumscribed lesion showing proliferation of intralobular stroma compressing and distorting the epithelium.
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Phyllodes tumor |
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Lipoma |
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Basal cell carcinoma |
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Malignant melanoma |
Malignant spindle cell neoplasm, showing numerous mitotic figures, including atypical tripolar mitotic figure, in the centre.
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Squamous papilloma |
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Renal cell carcinoma |
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Cresenteric glomerulonephritis |
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Transitional cell carcinoma |
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