1. Electron Microscopy - Osler Institute Pathology Board Review
Primer of Organelles
Cytoplasm
Annulate lamellae
Cellular immaturity

2. Electron Microscopy - Osler Institute Pathology Board Review
Primer of Organelles
Cytoplasm
Cylindric confronting cisternae
Ring shaped and tubular forms in HIV infection

3. Electron Microscopy - Osler Institute Pathology Board Review
Primer of Organelles
Cytoplasm
Microtubules
Cell processes of neuroblastoma
Intracisternal microtubules
Melanoma
Extraskeletal chondrosarcoma

4. Electron Microscopy - Osler Institute Pathology Board Review
Primer of Organelles
Cytoplasm
Myosin and Actin
Myosin - 15 nm
Actin – 6 -8 nm

5. Electron Microscopy - Osler Institute Pathology Board Review
Primer of Organelles
Cytoplasm
Cytokeratin filaments
Squamous cell carcinomas

6. Electron Microscopy - Osler Institute Pathology Board Review
Primer of Organelles
Cytoplasm
Vimentin filaments
Mesenchymal cells, endothelial cells, tumors
Abundant in rhabdoid tumors of the kidney
Carcinoid tumor with intracytoplasmic vimentin filaments

7. Electron Microscopy - Osler Institute Pathology Board Review
Primer of Organelles
Cytoplasm
Intermediate filaments
Aggregates of smooth muscle actin
Infantile digital fibromatosis

8. Electron Microscopy - Osler Institute Pathology Board Review
Primer of Organelles
Cytoplasm
Glial filaments
51 – 52 KD glial fibrilllary acidic protein
Astrocytic tumors
Plaques of multiple sclerosis
Rosenthal fibers – pilocytic astrocytoma

9. Electron Microscopy - Osler Institute Pathology Board Review
Primer of Organelles
Endoplasmic reticulum
Rough endoplasmic reticulum
Abundant RER in:
Plasma cells
Acinar cell neoplasms

10. Electron Microscopy - Osler Institute Pathology Board Review
Primer of Organelles
Cytoplasm
Smooth Endoplasmic reticulum
Ovarian sex cord tumors
Lipid cell tumors
Hilus cell tumor of ovary
Luteomas
Sertoli adenoma of testis
Adrenal cortical tumors
Sebaceous gland neoplasms

11. Electron Microscopy - Osler Institute Pathology Board Review
Primer of Organelles
Cytoplasm
Intercellular junctions
Junctional complexes – cytoplasmic lumina
Desmosomes - carcinomas
Primitive junctions – sarcomas, carcinomas

12. Electron Microscopy - Osler Institute Pathology Board Review
Primer of Organelles
Cytoplasm
Lamellar cytoplasmic inclusions
Myelinosomes
Bronchioloalveolar cell carcinoma
Type II pneumocyte

13. Electron Microscopy - Osler Institute Pathology Board Review
Primer of Organelles
Cytoplasm
Langerhan’s cell (Birbeck) granules
Eosinophilic granuloma

14. Electron Microscopy - Osler Institute Pathology Board Review
Primer of Organelles
Cytoplasm
Lipid
Hibernomas
Steroid secreting cells
Clear cell carcinoma of kidney
Malignant fibrous histiocytoma

15. Electron Microscopy - Osler Institute Pathology Board Review
Primer of Organelles
Cytoplasm
Lysosomes
Secondary lysosomes
Granular cell tumors
Myelomonocytic leukemia
Malignant histiocytosis