11 topics with brief reviews: definitions, key facts, and class questions.
"Introduction to Nosology" is the foundation of clinical thinking. Here we analyze how a disease originates, develops, and transforms. The section covers basic concepts of general pathology: from etiology and pathogenesis to pathomorphosis of diseases in modern conditions.
Most topics are strictly applied in nature. You will learn how to correctly formulate a diagnosis taking into account the International Classification of Diseases (ICD), assess comorbidity, and classify disease outcomes. Special attention is paid to iatrogenesis — pathologies caused by medical intervention, which a physician must be aware of.
In practical classes and exams, the strictest evaluation applies to the rules of diagnosis classification, categories of diagnostic discrepancies (clinical and pathoanatomical), and the tasks of clinico-anatomical conferences. Without understanding these topics, it is impossible to become a thoughtful clinician capable of analyzing treatment outcomes and professional errors.
A symptom is a single sign of a pathological state. A syndrome, however, represents a constellation of symptoms characteristic of a specific disease and always interconnected by a single pathogenesis.
Can a disease occur without a cause?
No. Modern medicine postulates that there is no disease without a cause. It is the root cause that determines the specificity and qualitative characteristics of any disease.
How does pathogenesis differ from etiology?
Etiology studies the causes of disease onset, while pathogenesis studies the mechanisms of its subsequent development. Pathogenesis is the direct realization of the etiological factor's action.
Who is responsible for revising and updating the ICD?
This work is carried out by a committee of experts from the World Health Organization (WHO). They periodically convene assemblies and analyze data from UN member states to incorporate new medical knowledge.
What is the key criterion for classifying a condition as a complication?
Presence of a pathogenetic connection with the primary condition. If the process does not stem from the mechanisms of development of the main disease, it cannot be considered its complication.
How do competing diseases differ from combined diseases?
Competing diseases are each fatal on their own. Combined diseases would not lead to death individually, but due to simultaneous development and mutual aggravation, they destroy the organism together.
Master the entire topic in the "Pathological Anatomy" course
This is a summary. The course covers everything tested in classes and exams.
4,414 pages of study guides covering all topics
Assignments and quizzes after every topic — just like in a colloquium