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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Fistula-In-Ano
Overview Fistula-In-Ano, also referred to as “Anorectal fistula”, is an abnormal tunnel between the anal canal (hollow viscus) and the surface of the body. Over 90% are attributed to prior anorectal abscess. It may occur in the presence of Crohn’s Disease and has an association with obesity and diabetes. Patients experience intermittent rectal pain,…
View topic ↗Asthma (Adults)
Clinical features of asthma such as dyspnoea, chest tightness and wheezing can mimic other respiratory conditions. It is important to take a careful history and examination and ideally demonstrate reversible airflow obstruction. Other clinical features of asthma arise during periods of bronchoconstriction (ie. exercise, smoking, stress, cold air). Exacerbation of asthma confounds the breathing difficulty, cough and wheeze in patients.
View topic ↗Pre-menstrual Syndrome (PMS)
Overview Premenstrual syndrome is defined as recurrent moderate psychological and physical symptoms that occur during the luteal phase of menses and resolve with menstruation. Most women of reproductive age experience one or more mild emotional or physical symptoms for one to two days before the onset of menses. These symptoms, such as breast soreness and bloating,…
View topic ↗Chagas Disease
Authors Megan Miner Armando Faigl Overview Chagas disease is caused by the parasitic protozoan Trypanosoma cruzi (T. cruzi) and is potentially life-threatening. These parasites often live within triatomine bugs. Following a bite to the skin, these bugs, also known as “kissing bugs”, deposit fecal matter near the site of the bite. Their bite, unfortunately, causes…
View topic ↗Glomerulonephritis
Overview Glomerulonephritis is inflammation of the glomerulus. Glomerulonephritis is classified by clinical syndrome/presentation (e.g. nephritic or nephrotic syndrome), histological appearance , or by aetiology. We will divide glomerulonephritis broadly into two broad types: Nephritic glomerulonephritis and nephrotic glormerulonephritis. Classification Two Types of Glomerular disease: Nephrotic Syndrome Nephritic Syndrome DIFFERENCE BETWEEN NEPHROTIC AND NEPHRITIS SYNDROME …
View topic ↗Mitral Stenosis
Overview Mitral stenosis causes an obstruction to blood flow from the left atrium to left ventricle usually as a result of rheumatic heart disease. The stenosis results in increased pressure in the left atrium, pulmonary vasculature and right side of heart. Mitral valve disease is a frequent cause of heart failure and death. Mitral valve area:…
View topic ↗Septic Arthritis
Overview Septic arthritis refers to infection in a joint; it is usually caused by bacteria but can be caused by fungi or mycobacteria. Septic arthritis due to bacterial infection is often a destructive form of acute arthritis. Arthritis: Inflammation of joint Arthrosis: Degeneration of joint Septic Arthritis: Infection of joint Pathophysiology Septic arthritis involves bacterial…
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Chediak Higashi Syndrome
Explore Chediak-Higashi Syndrome, a rare autosomal recessive disorder affecting lysosomal trafficking and immune cell function. This video explains its genetic basis, characteristic features like recurrent infections and albinism, and the underlying pathophysiology driving its clinical presentation.
Baker's Cyst Knee – posterior knee swelling and pain
Baker’s cysts, also known as popliteal cysts, are among the most common knee disorders. These fluid-filled cysts develop at the back of the knee in the popliteal fossa and result from the enlargement of the gastrocnemius-semimembranosus bursa, a bursa located between the gastrocnemius and semimembranosus muscles. Baker’s cysts typically form in adults due to knee…
Approach to bleeding disorders – causes, pathophysiology and investigations
Bleeding disorder can be either due to a problem in primary hemostasis or secondary hemostasis. Primary hemostasis related bleeding disorder are due to problems with platelets – either reduced production, increased consumption or increased destruction. Secondary hemostasis related bleeding disorders are caused by problems with the clotting factors – either a deficiency or presence of…
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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New and worth a look
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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.