Histology Course

Lesson 1 • Advanced Microscopy Modalities

Introduces phase contrast, fluorescence, confocal, and electron microscopy. Students learn when each modality is appropriate for specific tissue questions.

Lesson 2 • Cell Biology Review for Histologists

Reviews organelle structure and function as seen in stained sections. Connects cell biology knowledge to recognizable microscopic features.

Lesson 3 • Light Microscopy Principles and Operation

Covers optical physics, lens systems, and correct microscope setup. Students gain hands-on competency in focusing, illumination, and magnification selection.

Lesson 4 • Introduction to Histology as a Discipline

Defines histology's scope, its relationship to anatomy and pathology, and its clinical relevance. Grounds students in why tissue-level analysis matters in biomedical practice.

Lesson 1 • Quality Control in Slide Preparation

Introduces pre-staining quality checks including section thickness, tissue orientation, and adhesion. Systematic QC prevents wasted staining reagents and diagnostic errors.

Lesson 2 • Tissue Processing and Embedding

Covers dehydration, clearing, infiltration, and paraffin or resin embedding sequences. Students understand how each step affects section quality and antigen preservation.

Lesson 3 • Microtomy and Cryosectioning

Teaches rotary microtome operation, blade selection, and cryostat use for frozen sections. Students cut sections at target thicknesses with minimal artifact.

Lesson 1 • Carbohydrate and Mucin Stains

Explains PAS reaction, Alcian blue, and mucicarmine for glycogen and mucin detection. Students apply these stains to distinguish secretory cell types and storage disorders.

Lesson 2 • Lipid, Pigment, and Mineral Stains

Addresses Oil Red O, Prussian blue, and von Kossa stains for lipids, iron, and calcium. Correct identification of these substances guides metabolic and degenerative diagnoses.

Lesson 3 • Connective Tissue Special Stains

Covers Masson's trichrome, van Gieson, and reticulin stains for collagen and fiber visualization. These stains are essential for fibrosis assessment and structural analysis.

Lesson 4 • Microorganism Detection Stains

Teaches Gram, Ziehl-Neelsen, Grocott, and PAS stains for bacteria, mycobacteria, and fungi. Accurate microbial staining directly informs infectious disease diagnosis.

Lesson 1 • Pathological Changes in Epithelium

Covers hyperplasia, dysplasia, metaplasia, and carcinoma in situ as progressive alterations. Students apply grading criteria to distinguish reactive from neoplastic epithelial changes.

Lesson 2 • Epithelial Renewal and Stem Cells

Explains epithelial turnover rates, stem cell niches, and regenerative capacity. Understanding renewal is prerequisite to recognizing dysplasia and neoplastic transformation.

Lesson 3 • Classification of Epithelial Tissues

Presents the systematic classification by cell shape, layer number, and surface specialization. A clear classification framework underpins accurate identification in any organ.

Lesson 1 • Cartilage and Bone Histology

Distinguishes hyaline, elastic, and fibrocartilage and describes compact versus cancellous bone structure. Students identify osteoblasts, osteoclasts, and remodeling zones.

Lesson 2 • Skeletal, Cardiac, and Smooth Muscle

Compares the three muscle types by fiber arrangement, nuclei position, and striations. Correct muscle identification is essential for interpreting myopathies and organ wall structure.

Lesson 3 • Nervous Tissue Components

Identifies neurons, neuroglia, and peripheral nerve sheaths in stained sections. Nervous tissue recognition is foundational for neuropathology and neuroendocrine tumor identification.

Lesson 4 • Blood and Hematopoietic Tissue

Covers erythrocyte, leukocyte, and platelet morphology in smears and bone marrow sections. Students differentiate normal hematopoiesis from dysplastic and neoplastic patterns.

Lesson 1 • Endocrine Glands Histology

Covers pituitary, thyroid, parathyroid, adrenal, and pineal gland histology. Students correlate cell type with hormone product and identify hyperplastic and neoplastic changes.

Lesson 2 • Cardiovascular System Histology

Describes arterial, venous, and capillary wall layers and cardiac chamber histology. Students distinguish vessel types and recognize atherosclerotic and inflammatory changes.

Lesson 3 • Liver, Pancreas, and Biliary System

Describes hepatic lobule and portal tract architecture, pancreatic acini, and bile duct histology. Students identify hepatocyte zones, islets of Langerhans, and cholestatic changes.

Lesson 4 • Gastrointestinal Tract Histology

Identifies the four-layer GI wall plan and regional specializations from esophagus to rectum. Students recognize villus-crypt architecture, goblet cells, and inflammatory bowel changes.

Lesson 1 • Antibody Selection and Validation

Guides clone selection, dilution optimization, and specificity validation using positive and negative controls. Rigorous validation prevents misdiagnosis from non-specific staining.

Lesson 2 • Antigen Retrieval Methods

Covers heat-induced and enzymatic antigen retrieval protocols and their effect on epitope exposure. Optimal retrieval is the most critical variable for consistent IHC sensitivity.

Lesson 3 • Principles of Immunohistochemistry

Explains antigen-antibody binding, direct versus indirect detection, and signal amplification systems. IHC principles underpin all antibody-based tissue localization methods.

Lesson 4 • In Situ Hybridization and Molecular Methods

Introduces FISH, CISH, and RNA-ISH for gene amplification and expression analysis in tissue sections. These techniques extend IHC by detecting nucleic acid targets directly in morphological context.

Lesson 1 • Inflammation and Repair Histology

Identifies acute, chronic, and granulomatous inflammation patterns and wound healing stages. Students distinguish productive repair from fibrosis and scar formation.

Lesson 2 • Structured Diagnostic Report Writing

Teaches the components of a complete histopathology report including macroscopic description, microscopic findings, and diagnosis. Clear reporting ensures accurate clinical communication.

Lesson 3 • Systematic Approach to Slide Reading

Establishes a low-to-high magnification scanning protocol and a structured observation checklist. A reproducible method reduces missed findings and anchoring bias in diagnosis.

Lesson 4 • Staging and Margin Assessment

Covers pathological staging principles, margin inking, and distance-to-margin measurement. Accurate staging and margin reporting directly influence surgical and oncological decisions.