Histopathology Course

Lesson 1 • Role of Histopathology in Medicine

Defines histopathology's diagnostic function within clinical workflows. Connects laboratory findings to patient management decisions.

Lesson 2 • Introduction to Tissue Biology

Covers the four primary tissue types and their structural organization. Provides the biological baseline required for interpreting pathological changes.

Lesson 3 • Cellular Anatomy and Pathology Basics

Reviews normal cell anatomy as the reference point for identifying abnormality. Introduces key pathological terms used throughout the course.

Lesson 1 • Tissue Processing and Embedding

Covers dehydration, clearing, and paraffin infiltration steps. Proper embedding orientation determines section quality and diagnostic yield.

Lesson 2 • Specimen Receipt and Documentation

Establishes chain-of-custody protocols and labeling standards for incoming specimens. Errors at this stage compromise all downstream results.

Lesson 3 • Decalcification and Special Tissue Types

Addresses bone, calcified, and fatty tissue requiring modified processing. Mastery prevents loss of morphological detail in challenging specimens.

Lesson 4 • Quality Control in Processing

Defines checkpoints that detect processing failures before sectioning. Systematic QC reduces repeat processing and diagnostic delays.

Lesson 1 • Microtome Types and Components

Identifies rotary, sliding, and cryostat microtomes and their appropriate applications. Component knowledge enables correct setup and troubleshooting.

Lesson 2 • Cryostat Sectioning for Frozen Tissue

Addresses intraoperative frozen section technique and its unique quality demands. Speed and accuracy are both critical in this surgical context.

Lesson 3 • Block Trimming and Facing

Teaches systematic block trimming to expose representative tissue. Proper facing minimizes wasted tissue and ensures diagnostic area is reached.

Lesson 4 • Section Cutting Techniques

Covers ribbon formation, section thickness control, and knife angle adjustment. Consistent technique produces sections free of folds and chatter.

Lesson 1 • Interpreting H&E Stained Sections

Trains recognition of nuclear, cytoplasmic, and extracellular staining patterns. Accurate interpretation is the primary skill in routine diagnostic work.

Lesson 2 • Principles of Histological Staining

Explains dye-tissue interactions, ionic bonding, and chromophore chemistry. Understanding staining chemistry enables rational troubleshooting of failures.

Lesson 3 • Staining Quality Control

Establishes criteria for acceptable stain intensity, contrast, and reproducibility. QC prevents misdiagnosis caused by suboptimal staining.

Lesson 1 • Carbohydrate and Mucin Stains

Teaches PAS, Alcian blue, and mucicarmine stains for glycogen and mucin detection. Mucin typing aids classification of adenocarcinomas and cystic lesions.

Lesson 2 • Lipid and Pigment Stains

Addresses Oil Red O, Sudan black, Perl's Prussian blue, and melanin stains. Pigment identification resolves diagnostic ambiguity in liver and skin pathology.

Lesson 3 • Stain Selection and Diagnostic Logic

Develops a decision framework for choosing special stains based on clinical context. Efficient stain selection reduces cost and turnaround time.

Lesson 4 • Connective Tissue Stains

Covers Masson's trichrome, van Gieson, and reticulin stains for fibrous tissue. These stains quantify fibrosis and distinguish collagen subtypes.

Lesson 1 • Immunohistochemistry Fundamentals

Explains antigen retrieval, primary antibody binding, and detection system chemistry. Conceptual mastery prevents systematic errors in IHC workflows.

Lesson 2 • Diagnostic IHC Panel Design

Teaches construction of marker panels for tumor classification and site-of-origin determination. Rational panel design minimizes tissue consumption and cost.

Lesson 3 • IHC Interpretation and Reporting

Develops scoring systems and reporting language for IHC results. Standardized reporting ensures clinicians receive actionable, unambiguous information.

Lesson 4 • Detection Systems and Chromogens

Covers avidin-biotin, polymer, and tyramide amplification systems with DAB and AEC chromogens. System choice affects sensitivity, background, and multiplexing capability.

Lesson 1 • Urological and Renal Pathology

Covers glomerulonephritis patterns, renal cell carcinoma subtypes, and prostate carcinoma grading. Glomerular pattern recognition requires systematic approach to biopsy interpretation.

Lesson 2 • Respiratory and Pleural Pathology

Covers lung carcinoma classification, interstitial lung disease patterns, and pleural lesions. Accurate lung tumor subtyping drives targeted therapy selection.

Lesson 3 • Lymph Node and Hematological Pathology

Addresses reactive lymphadenopathy versus lymphoma and bone marrow biopsy interpretation. Lymphoma classification integrates morphology, IHC, and molecular data.

Lesson 4 • Liver, Biliary, and Pancreatic Pathology

Addresses hepatitis grading, cirrhosis staging, and pancreatic neoplasia. Standardized grading systems are essential for clinical management decisions.

Lesson 5 • Gastrointestinal Tract Pathology

Covers inflammatory, metaplastic, and neoplastic lesions of the esophagus, stomach, and intestines. GI pathology represents the highest-volume diagnostic category in most laboratories.

Lesson 1 • Ethical and Professional Responsibilities

Addresses confidentiality, informed consent for tissue use, and professional conduct standards. Ethical practice protects patients and maintains public trust in pathology.

Lesson 2 • Laboratory Accreditation and Standards

Introduces accreditation frameworks, proficiency testing, and documentation requirements. Compliance with quality standards is mandatory for laboratory operation.

Lesson 3 • Structured Diagnostic Report Writing

Teaches synoptic and narrative reporting formats for surgical pathology specimens. Structured reports reduce omission errors and improve clinician comprehension.

Lesson 4 • Error Detection and Case Review

Covers discordance review, second-opinion protocols, and root-cause analysis. Systematic error review drives continuous quality improvement in the laboratory.