Visual explanationFree resource
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.
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Clear visual explanations used by medical and allied-health learners around the world.
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Knee Osteoarthritis (KOA)
Overview Knee osteoarthritis is a chronic, whole-joint disorder characterized by pain, stiffness, functional limitation and progressive structural change affecting cartilage, subchondral bone, synovium, menisci, ligaments and peri-articular muscles. Prevalence rises with age and obesity and contributes substantially to global disability; recent GBD analyses and reviews highlight knee OA as a leading cause of pain and…
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Complex Regional Pain Syndrome (CRPS)
Overview CRPS is a disproportionate, regional pain syndrome of a limb that typically follows injury or surgery and features sensory, vasomotor, sudomotor/oedema, and motor/trophic changes. The prevalence after limb fracture/surgery varies widely (≈1–7% overall, higher in some distal radius cohorts) and early recognition with rehabilitation improves outcome. Important risk factors include fracture (especially wrist/ankle), immobilisation,…
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Tuberculosis
Overview Tuberculosis (TB) is a chronic, communicable infectious disease caused by the acid-fast bacillus Mycobacterium tuberculosis . It primarily affects the pulmonary parenchyma but possesses the capacity to disseminate to virtually any organ system via hematogenous and lymphatic spread. TB remains one of the leading infectious causes of mortality worldwide, representing a major global public…
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Juvenile Idiopathic Arthritis (JIA)
Overview Juvenile Idiopathic Arthritis (JIA) is an umbrella term encompassing a heterogeneous group of chronic inflammatory arthritides of unknown etiology presenting in children under 16 years of age. It represents the most common chronic pediatric rheumatic disease, with an estimated prevalence of 1 in 1,000 children. To meet the diagnostic criteria, arthritis must persist for…
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Arrythmias
Overview An arrythmia refers to any disturbance in cardiac electrical activity that is not normal sinus rhythm with normal atrioventricular conduction. This may include changes in rate, rhythm or site of origin of the electrical signal for contraction. 1 Normal conduction of the heart For the heart to pump normally 2 : SA node initiates…
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Pneumonia
Overview Pneumonia is infection in the lower respiratory tract and is characterised by fevers, purulent sputum, leucocytosis, low oxygen levels and new lung infiltrates (consolidation) on radiographic imaging. The infection is identified by the site of consolidation. Consolidation is where the lung tissue is filled with fluid (ie. water, blood, pus, microbes). Types of pneumonia…
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Guillain–Barré Syndrome
Overview Guillain-Barré Syndrome (GBS) is an acute, immune-mediated polyneuropathy typically triggered by a preceding gastrointestinal or respiratory infection. It is characterised by an autoimmune attack on the peripheral nerves, leading to mainly demyelination but also axonal degeneration, which impairs nerve conduction and causes muscle weakness and paralysis. GBS affects about 1–2 per 100,000 people annually.…
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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.
01 / WATCH02 / READ03 / SEE04 / CHECK
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.
Golgi Apparatus
Discover the structure and function of the Golgi apparatus, focusing on its role in modifying, sorting, and packaging proteins for cellular transport. This video explains how the Golgi works within the endomembrane system and its importance in secretion and membrane formation.
Introduction to Upper and Lower Motor Neuron Lesions
Explore the key differences between upper and lower motor neuron lesions, including their causes, clinical signs, and diagnostic features. This video provides a clear overview of motor pathway damage and its impact on muscle tone, reflexes, and coordination.
Patellofemoral Pain Syndrome – runner's knee
Patellofemoral syndrome also known as runners knee is a common overuse disorder of the knee joint, specifically of the patellofemoral region that can not be attributed to another pathology such as a meniscus tear, tendonitis or bursitis. It typically presents as anterior knee pain behind the patella and is aggravated by activities that involve loading…
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.
Jessica Payne-Burnett
Medical Student, Charles Sturt University
“The notes I make during his videos help me retain everything better.
Ayesha RaiStudent, Islamabad Medical and Dental College
“The drawings are amazing and super easy to remember.
Reem Mohamed Khair Abdalrazig
Student, Neelain University
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.
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- 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.
Chronic inflammatory demyelinating polyneuropathy (CIDP)
Overview Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is an acquired immune-mediated disorder of peripheral nerves and nerve roots, causing demyelination, impaired nerve conduction, weakness, sensory disturbance and reduced or absent reflexes. Typical CIDP causes progressive or relapsing symmetrical proximal and distal weakness with sensory loss developing over at least 8 weeks . This time course helps…
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.