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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Aortic Aneurysm
Overview An aortic aneurysm is a pathological dilatation of the aorta caused by weakening of the arterial wall. It may involve the aortic root, ascending aorta, arch, descending thoracic aorta, thoracoabdominal aorta or abdominal aorta. Most aortic aneurysms are asymptomatic and are discovered incidentally or through screening. Progressive enlargement increases the risk of rupture, dissection,…
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Arrhythmogenic Right Ventricular Cardiomyopathy
Overview Arrhythmogenic right ventricular cardiomyopathy (ARVC) is an inherited myocardial disease characterised by ventricular arrhythmias and progressive structural abnormalities, predominantly affecting the right ventricle. Left-ventricular involvement is common, and some patients have biventricular or left-dominant disease; these phenotypes are encompassed by the broader term arrhythmogenic cardiomyopathy . 1,2 ARVC is an important cause of ventricular…
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Trigger Finger (Stenosing Tenosynovitis)
Overview Trigger finger is a condition in which a finger or thumb catches, clicks or locks as it bends and straightens. It occurs when the flexor tendon cannot glide smoothly through the A1 pulley at the base of the digit. The affected digit may be painful and stiff, particularly on waking, and may need help…
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Acute Liver (Hepatic) Failure
Overview Acute liver failure (ALF) is a rare, rapidly evolving syndrome of severe hepatocellular injury with loss of hepatic function. Patients can deteriorate from apparently mild illness to encephalopathy and multiorgan failure within days. Prompt recognition, cause-specific treatment and early transplant-centre involvement are essential. These notes describe adult ALF; paediatric diagnostic criteria differ. [1–4] Acute…
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Allergic Conjunctivitis
Overview Allergic conjunctivitis is inflammation of the conjunctiva caused by hypersensitivity to an allergen. It usually presents with bilateral ocular itching, redness, watering and conjunctival swelling , often alongside allergic rhinitis, asthma or atopic dermatitis. 1,2 Seasonal and perennial allergic conjunctivitis are common and generally do not threaten vision. Vernal keratoconjunctivitis and atopic keratoconjunctivitis are…
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Shingles (Herpes Zoster)
Overview Shingles is reactivation of latent varicella-zoster virus (VZV) following previous chickenpox or, less commonly, varicella vaccination. After primary infection, VZV remains dormant in the dorsal-root or cranial-nerve ganglia. Reactivation occurs when VZV-specific cell-mediated immunity declines. In Australia, incidence is approximately 560 cases per 100,000 people annually and increases markedly after age 50. Lifetime risk…
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Caplan Syndrome
Overview Caplan syndrome, also known as rheumatoid pneumoconiosis, is a rare condition seen in patients with rheumatoid arthritis (RA) who have had occupational exposure to inhaled dust, particularly coal dust or silica. It is characterised by multiple, rounded pulmonary nodules and underlying pneumoconiosis. It primarily affects middle-aged male coal workers and is now rare in…
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Clear written explanations for review, reference and filling in the details.
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Questions
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Good places to begin
Explanations learners return to.
Hypersensitivity type III – immune complex mechanism and examples
Type 3 hypersensitivity (immune complex) reactions explained: how antigen–antibody complexes trigger complement-driven inflammation. Learn the mechanism of immune complex formation, clearance failures, and tissue deposition that cause localized (Arthus reaction, hypersensitivity pneumonitis) and systemic (serum sickness) disease. This video breaks down how antigens—from drugs, inhaled particles, bacteria like group A Streptococcus, or even self-antigens in…
Mucosal Immunity Overview
Discover how mucosal immunity protects the body at surfaces like the respiratory, gastrointestinal, and urogenital tracts through specialized cells and secretory antibodies. This video explains key components such as M cells, IgA, and the role of gut-associated lymphoid tissue (GALT) in defending against pathogens.
Helminths Explained: Tapeworms, Roundworms & Flukes | Parasite Overview for Students
In this video, we provide an overview of helminths — parasitic worms including tapeworms (cestodes), roundworms (nematodes), and flukes (trematodes). Ideal for medical and biology students, this concise explanation covers the major groups of helminths, their structure, transmission, and key clinical features.
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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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 ↗Deep Neck Infection Causes, specific syndromes and symptoms, Complications & TreatmentExtensor Tendon Anatomy & Injuries Explained | Zones, Clinical features and examinationApoptosis – internal and external pathwaysMCL Knee Tear Explained Symptoms, Grades and TreatmentPharmacodynamics Explained Agonists, Antagonists, Efficacy & AffinityFlexor Tendon Injury & Anatomy Explained Zones, Anatomy, Diagnosis & Treatment
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.