Visual medical education by Armando Hasudungan
Medical science, drawn into focus.
Explore visual explanations that reveal how the facts, processes and clinical patterns fit together—then discover the coming AH study platform, built to guide what you study next and check what stuck.
Clear visual explanations used by medical and allied-health learners around the world.
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Congenital Heart Defect
Overview Congenital heart disease (CHD) is the most common congenital disorder in newborns. Classification Acyanotic and Cyanotic Pulmonary blood flow Increased Decreased Normal Cyanotic (T's) Acynotic (D's) T etralogy of Fallot AS D T ransposition of the great vessles VS D T ricuspid atresia AVS D T runcus arteriosus Patent D uctus Arteriosus Other:…
View topic ↗Bronchiolitis
Overview Bronchiolitis is often a viral cause mainly Respiratory Syncytial Virus (RSV). Bronchiolitis is the most common respiratory tract infection of neonates and is usually self-limiting. A major source of confusion of treatment is differentiating a viral bronchiolitis to asthma. In summary bronchiolitis is usually seen in infants <2yo. Asthma is seen in older children. Bronchiolitis…
View topic ↗Acute Diabetes Complication (DKA, HHS, Hypoglycaemia)
Diabetic Ketoacidosis Ketoacidosis: A condition resulting from deficient insulin availability, leading to lipid oxidation and metabolism rather than glucose metabolism. The insulin absence results in free fatty acid (FFA) released from adipose tissue and in unregulated hepatic FFA oxidation and ketogenesis. Type I Diabetes: Autoimmune disease where there is attack of beta cells of the…
View topic ↗Community Acquired Pneumonia
Overview Community acquired pneumonia occur in individuals who are not in hospital (or have been in hospital in the past 48 hours) and who are not significantly immunocompromised. The World Health Organization estimates that lower respiratory tract infection is the most common infectious cause of death in the world. Choice of antibiotics are usually empirical…
View topic ↗Henoch–Schönlein Purpura (IgA Vasculitis)
Overview Henoch–Schönlein purpura (HSP), now termed IgA vasculitis, is the most common systemic vasculitis in children, characterised by IgA1-dominant immune complex deposition in small vessels, particularly affecting the skin, joints, gastrointestinal tract, and kidneys. It predominantly occurs in children aged 3–10 years, with a slight male predominance, and often follows an upper respiratory tract infection.…
View topic ↗Interstitial Lung Disease
Overview Interstitial Lung Disease is also known as Diffuse Parenchymal Lung Disease (DPLD). A Heterogeneous collection of restrictive lung conditions (>100) that primarily (or at least initially) disrupt the pulmonary interstitium. Interstitial Lung Disease (ILD) are grouped together as they share similar pathophysiological mechanisms, clinical features and radiological findings. Pulmonary Interstitium: Intervening structural tissue between the alveoli space and pulmonary…
View topic ↗Gallstone Disease
This section looks at gallstone disease in general. For info on cholecystitis specifically click here . Overview Gallstones, also called cholelithiasis, are solid deposits formed from components of bile, most commonly cholesterol or bilirubin. They usually develop within the gallbladder but may migrate into the biliary ducts. Gallstones range from very small particles to large stones…
View topic ↗Full resource library
Browse all topics ↗Choose how you learn
One idea. More than one way to see it.
Use the format that helps the topic click, then switch formats when you need to reinforce it.
Videos
Hand-drawn explanations that build the big picture as the concept unfolds.
Notes
Clear written explanations for review, reference and filling in the details.
Diagrams
Visual snapshots that help you easily review topics.
Questions
Test whether the explanation stayed with you—not just whether it looked familiar.
Good places to begin
Explanations learners return to.

Immunology – Interleukin 6 (IL6) physiology and IL6 antagonist pharmacology Tocilizumab
Learn about Interleukin-6 (IL-6), a key cytokine involved in inflammation, immune regulation, and acute phase responses. This video also explains the pharmacology of IL-6 antagonists like tocilizumab, including their mechanism of action and clinical use in conditions such as rheumatoid arthritis and cytokine release syndrome.

Neurology – Motor Pathways
Explore the major motor pathways in neurology, including the corticospinal and extrapyramidal tracts, and their roles in voluntary movement. This video simplifies complex neuroanatomy to help you understand motor control and related clinical syndromes.

Acute Compartment Syndrome
Learn about Compartment Syndrome in this concise overview covering its pathophysiology, key signs and symptoms, and emergency treatment strategies like fasciotomy. Understand how early recognition can prevent irreversible muscle and nerve damage.
Our mission
Medical science is complex. Understanding it should feel possible.
Armando Hasudungan turns difficult medical science into clear visual explanations and connected learning experiences—so learners can see the whole picture, remember what matters and find a clearer way forward.
See it clearly
Turn abstract processes and invisible relationships into something the learner can picture.
Connect the pieces
Build understanding around how concepts fit together—not a pile of isolated facts.
Make it useful
Help learners move from explanation to recall, revision and the next logical step.
What clarity feels like
When the topic stops being a blur.
Learners do not come back because the subject became easy. They come back because the explanation gave them a picture they could work with.
“Armando's teaching style gives me the foundational knowledge.
“The notes I make during his videos help me retain everything better.
“The drawings are amazing and super easy to remember.
Coming soon: the AH study platform
The explanation is only the start.
The free library helps you find a clear explanation. The AH platform is being built to help you connect the resources, follow a clearer path and check what actually stuck.
- Watch in a focused, ad-free study environment.
- Move between connected videos, notes, diagrams and questions.
- Know what belongs next instead of rebuilding the study path yourself.
- Test your understanding while the topic is still fresh.
New and worth a look
Keep building the picture.
Lambert-Eaton Myasthenic Syndrome
Overview Lambert–Eaton myasthenic syndrome (LEMS) is a rare autoimmune disorder of the presynaptic neuromuscular junction. It causes impaired acetylcholine release, producing the characteristic triad of proximal muscle weakness, reduced reflexes and autonomic dysfunction. LEMS may occur as a paraneoplastic syndrome—most commonly associated with small-cell lung cancer (SCLC)—or as a non-tumour-associated autoimmune disorder. Neuromuscular junction: connection…
View this topic ↗About Visualising Medicine
Good education does not remove complexity. It makes complexity feel simple.
Visualising Medicine is the team behind Armando Hasudungan. We bring together medicine, illustration, writing and technology to make difficult ideas clearer—and build better ways for learners to use them.



