Unified Content Catalog
All content types in one searchable multilingual registry: disease theory, courses, virtual patients, procedures, and media.
Shortness of Breath in a 68-year-old Woman
An elderly woman with progressive dyspnea over 3 months, bilateral lower extremity edema, and orthopnea.
Chief Physician Viktor Lebedev
Within 72 hours, 11 patients with acute gastrointestinal infection (AGI) have been hospitalised in the infectious disease ward — all employees of three enterprises who ate at the same canteen.
Acute Apical Periodontitis — Diagnosis
Acute inflammation of the periradicular tissues — from hyperemia to suppuration at the root apex
Acute Pulpitis — Diagnosis
Reversible and irreversible inflammatory conditions of the dental pulp
Aphthous Stomatitis — Diagnosis
Recurrent painful oral ulcers of unknown etiology — the most common oral mucosal disease
Chronic Apical Periodontitis — Diagnosis
Silent periradicular destruction — granuloma and cyst formation at the root apex
Chronic Periodontitis — Diagnosis
Progressive irreversible destruction of the tooth-supporting apparatus
Chronic Pulpitis — Diagnosis
Prolonged, low-grade pulp inflammation progressing silently toward irreversibility
Dental Abscess — Diagnosis
Acute purulent infection with soft tissue spread — from localized pus to life-threatening fascial space infection
Dental Caries — Diagnosis
The most prevalent infectious disease worldwide
Dental Erosion — Diagnosis
Irreversible loss of dental hard tissue by chemical dissolution from non-bacterial acids
Dental Fluorosis — Diagnosis
Enamel hypomineralization from excessive fluoride ingestion during tooth development
Dentinal Hypersensitivity — Diagnosis
Sharp, transient pain from exposed dentin in response to thermal, evaporative, tactile, or osmotic stimuli
Gingivitis — Diagnosis
Reversible gingival inflammation — the most prevalent oral disease and precursor to periodontitis
Pericoronitis — Diagnosis
Inflammation around the crown of a partially erupted tooth
Periodontal Abscess — Diagnosis
Acute purulent infection localised within the periodontal tissues
Persistent Cough with Hemoptysis
A 45-year-old smoker presents with a 6-week history of productive cough and two episodes of blood-streaked sputum.
Pulmonary Diagnostics Essentials
Chest X-ray interpretation, spirometry, and pulmonary function testing for common respiratory diseases.
Radicular Cyst — Diagnosis
The most common odontogenic cyst, arising at the apex of a non-vital tooth
Acute Apical Periodontitis — Etiology
Acute inflammation of the periradicular tissues — from hyperemia to suppuration at the root apex
Acute Pulpitis — Etiology
Reversible and irreversible inflammatory conditions of the dental pulp
Aphthous Stomatitis — Etiology
Recurrent painful oral ulcers of unknown etiology — the most common oral mucosal disease