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In situ carcinoma of the uterine cervix

In situ carcinoma of the uterine cervix

In situ carcinoma of the uterine cervix   Atypical cell proliferation , which affects the entire thickness of the multilayered squamous epithelium , without destroying the basement membrane . If  multiple histological sections confirm...
Choriocarcinoma

Choriocarcinoma – pathology and pictures

Choriocarcinoma – pathology and pictures   Malignant tumor of trophoblastic epithelium. It is built up of strands of atypical trophoblast cells without stroma. Among areas with extensive necroses and hemorrhages are found large...
Molar pregnancy

Molar pregnancy

Molar pregnancy The three morphological signs for molar pregnancy are: 1. Extremely swollen chorionic villi -  with mucoid edema, and the formation of  intrachorionic ‘lakes’ (arteficial phenomenon  from the technical processing of...
Seminoma of the testis

Seminoma of the testis

Seminoma of the testis     Malignant  tumor of the germ cell epithelium of seminiferous tubules. It is composed of uniform, round or polygonal cells, with bright cytoplasm and a big located at the centre of the cell nucleus ...
Adenocarcinoma of prostate gland

Adenocarcinoma of prostate gland

Adenocarcinoma of prostate gland Atypical glands of prostate carcinoma are  densely packed (‘back to back’) . They have irregular shape, and their basal membranes are destroyed at some places. Tumor glands and single cells infiltrate...
Transitional cell carcinoma of urinary bladder

Transitional cell carcinoma of urinary bladder

Transitional cell carcinoma of urinary bladder   Tumor occurs from the mucosa of the urinary bladder. It is composed of a large number of branched papillae, covered with multilayered epithelium, often with anastomoses. They are built...
Renal cell carcinoma

Renal cell carcinoma – pathology and pictures

Renal cell carcinoma – pathology and pictures   Tumor cells with polygonal shape are arranged in nests, tubules and papillae. They have bright cytoplasm and well presented cell membrane. The light cytoplasm is due to extraction...
Ameloblastoma

Ameloblastoma – pathology and pictures

Ameloblastoma – pathology and pictures   Local destructive tumor, arising from tooth germinal epithelium. In  the follicular type, the cells are arranged in oval or round  nests set up among fibrous connective tissue. At the...
Plasmacytoma

Plasmacytoma

Plasmacytoma   A ‘jelly-like’ tumor mass, removed from osteolytic bone lesions showing diffuse neoplastic proliferation of mature plasma cells (‘pear’-shaped: oval, with eccentric nucleus, lightening around it and collateral...
Hodgkin’s disease

Hodgkin’s disease

Hodgkin’s disease   Normal structure of lymph node is effaced by tumor cell proliferation and reactive inflammatory cells, the same seen in granulation tissue : lymphocytes, plasma cells, macrophages, eosinophilic and neutrophilic...