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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Acute Exacerbation of COPD
Overview An acute exacerbation of chronic obstructive pulmonary disease (AECOPD) is an acute worsening of dyspnoea and/or cough and sputum over fewer than 14 days, often associated with increased airway inflammation triggered by infection, pollution or another insult. 1 It represents a clinically important change from the patient’s usual day-to-day variation and may require additional…
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Acute Appendicitis
Overview Acute appendicitis is an acute inflammation of the vermiform (worm-like) appendix. It is mainly caused by obstruction of the lumen of the appendix by stool, infective agents or lymphoid hyperplasia. Acute appendicits is the most common abdominal surgical emergency in the world, with a lifetime risk of 6.9% in females and 8.6% in males.…
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Granulomatosis with Polyangiitis
Overview Granulomatosis with polyangiitis (formerly Wegener’s granulomatosis) is a rare, chronic, systemic necrotising vasculitis affecting small-to-medium-sized vessels, characterised by granulomatous inflammation, necrotising vasculitis, and tissue destruction, primarily involving the upper and lower respiratory tracts and kidneys. It falls under the ANCA-associated vasculitides (AAV). Peak incidence is in the 5th–6th decade, with slight male predominance and…
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Hepatocellular Carcinoma
Overview Hepatocellular carcinoma (also known as hepatoma ) is a primary cancer arising from hepatocytes in predominantly cirrhotic liver. Hepatocellular carcinoma is a leading cause of death worldwide, and cirrhosis is the main risk factor. Infection with hepatitis B and hepatitis C is the main cause of underlying liver disease. Prevention of chronic liver disease would greatly reduce…
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Osteonecrosis of the Hip
Overview Osteonecrosis of the hip, usually referring to osteonecrosis of the femoral head (ONFH), is a progressive disorder caused by compromised subchondral blood supply leading to death of osteocytes and marrow elements, failed structural repair, subchondral fracture, femoral head collapse, and eventually secondary hip osteoarthritis. [1-4] It most often affects younger to middle-aged adults, commonly…
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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,…
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Neural Tube Defect
Overview Neural tube defects (NTDs) are a group of major congenital anomalies comprising anencephaly, spina bifida and encephalocele that result from very early disruption in the development of the brain and spinal cord. These conditions are often incompatible with life. Survivors frequently require intensive, costly, lifelong health and social care. Neural tube defect (NTD): Severe…
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Hand-drawn explanations that build the big picture as the concept unfolds.
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Clear written explanations for review, reference and filling in the details.
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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 – Toll Like Receptors Overview
Learn how Toll-like receptors (TLRs) detect microbial components and activate signaling pathways that drive innate immune responses. This video provides an overview of different TLR types, their ligands, and their role in linking innate and adaptive immunity.
Diabetic Ketoacidosis (Diabetes Type I) Management Summary
Learn the essential steps in managing Diabetic Ketoacidosis (DKA), a life-threatening complication of Type I Diabetes. This video covers the pathophysiology, clinical presentation, and key treatment strategies including fluid resuscitation, insulin therapy, and electrolyte correction.
Physiology of Coughing
Explore the physiology behind coughing, including the reflex arc, neural control, and protective mechanisms of the respiratory system. This video breaks down how irritants trigger the cough reflex and its clinical significance in various respiratory conditions.
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
Keep building the picture.
Acute Coronary Syndrome: Myocardial infarction (STEMI, NSTEMI)
Overview Acute coronary syndrome (ACS) describes acute myocardial ischaemia caused by an abrupt reduction in coronary blood flow. It includes myocardial infarction (MI) and unstable angina and is a time-critical medical emergency. This article focuses on ST-segment elevation myocardial infarction (STEMI) and non-ST-segment elevation myocardial infarction (NSTEMI). 1 Myocardial infarction is diagnosed when there is…
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.