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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Dupuytren’s Contracture
Overview Dupuytren’s disease is a benign fibroproliferative disorder affecting the palmar fascia. Abnormal collagen deposition produces firm nodules and cords beneath the skin of the palm, which may progressively shorten and pull one or more fingers into flexion. The ring and little fingers are most commonly affected. Contracture usually develops slowly over months or years…
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Neck of Femur Fracture
Overview A neck of femur fracture is a fracture through the region connecting the femoral head to the femoral shaft. It is an intracapsular fracture because most of the femoral neck lies within the hip joint capsule. Neck of femur fractures most commonly occur in older adults following a low-energy fall, often in the presence…
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Acute Respiratory Failure
Overview Acute Respiratory Failure (ARF) is a life-threatening impairment of the respiratory system's ability to maintain adequate gas exchange. It occurs when the lungs fail to adequately oxygenate systemic arterial blood, fail to eliminate carbon dioxide produced by tissue metabolism, or both. ARF is not a disease entity in itself, but rather a sudden, critical…
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DiGeorge Syndrome
Overview DiGeorge syndrome (22q11.2 deletion syndrome) is a congenital immunodeficiency and multisystem disorder caused by a microdeletion on chromosome 22. It leads to defective development of the third and fourth pharyngeal pouches, resulting in thymic hypoplasia/aplasia, hypocalcaemia due to parathyroid hypoplasia, and congenital heart defects. Prevalence is estimated at 1 in 4000 live births. Clinical…
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Acute cholangitis
Overview Cholangitis means inflammation of the bile ducts. In clinical practice, the term commonly refers to acute cholangitis —an acute bacterial infection of the biliary system that usually develops when bile duct obstruction permits bacterial proliferation and impairs biliary drainage. It is a potentially life-threatening emergency because infection can rapidly progress to bacteraemia, sepsis and…
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Major Depressive Disorder
DSM V categorise these as seperate disorders Depressive disorders Bipolar disorders Anxiety disorders Depressive Disorders Major depressive disorder Other depressive disorder Persistent Depressive Disorder Substance/medication induced depression disorder Depressive disorder due to another medical condition Overview Depressive disorders are typically characterised by persistent low mood, loss of interest and enjoyment, neurovegetative disturbance, and reduced energy,…
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Sexual Transmitted Infection
Overview Sexually transmitted infections (STI) are a significant public health worldwide. STI can result in chronic disease, pregnancy complications, infertility, and even death. Globally, congenital syphilis is still a leading cause of stillbirth and neonatal death. Antibiotic-resistant Neisseria gonorrhoeae continues to be a significant public health concern. Chlamydia trachomatis infection is the most frequently reported…
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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.

Part II – Regulation of Blood Pressure (Hormones)
Continue examining hormonal regulation of blood pressure by exploring the roles of cortisol, epinephrine, and the sympathetic nervous system. This video explains how these factors contribute to short- and long-term blood pressure control through vascular and cardiac effects.

Calcineurin Inhibitors (Tacrolimus and Cyclosporine) IL2 – Mechanism of action, adverse effects
Calcineurin inhibitors such as tacrolimus and cyclosporine are immunosuppressants. They are used mainly to prevent organ transplant rejection in combination with mycophenolate and steroids as well used in severe atopic dermatitis. They are not really used as much for rheumatologic conditions any more, possibly for lupus nephritis. Calcineurin inhibitors are also used for the treatment…

Influenza overview
Learn how influenza spreads, mutates, and — most importantly — how vaccination and early treatment protect you from severe disease. This video explains influenza types (A, B, C, D), antigenic drift vs. antigenic shift, transmission pathways, symptoms, diagnosis, complications, and prevention in clear, practical terms. You’ll learn how seasonal flu viruses differ, why type A…
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.
Femoroacetabular Impingement Syndrome
Overview Femoroacetabular impingement syndrome (FAIS) is a motion-related clinical disorder of the hip in which symptoms and clinical signs occur in association with characteristic femoral and/or acetabular morphology. The accepted diagnostic concept is a triad of symptoms, clinical signs and imaging findings ; bone morphology alone does not establish the syndrome. Patients commonly present with…
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.



