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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Leukocyte Adhesion Deficiency
Overview Leukocyte adhesion deficiency (LAD) is a rare primary immunodeficiency characterised by recurrent bacterial and fungal infections, impaired wound healing, and absence of pus formation due to defective leukocyte adhesion and migration. It results from genetic defects in leukocyte integrins or signalling pathways, preventing neutrophil extravasation from blood vessels into tissues. LAD has an estimated…
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Anaphylaxis
Overview Anaphylaxis is a severe, systemic hypersensitivity reaction that is rapid in onset and potentially fatal, most often triggered by foods, medications, or venom; global incidence is ~50–112 per 100,000 person-years with rising emergency presentations in many regions, including Australia [1,2,4] . Mortality is low but non-trivial and is driven by airway obstruction, severe bronchospasm,…
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Spermatocele
Overview A spermatocele, or spermatic cyst, is a benign fluid-filled cyst arising from the epididymis, usually near the upper pole of the testis. It commonly contains clear or milky fluid with spermatozoa. Most spermatoceles are painless, discovered incidentally and do not require treatment. Epididymis: coiled structure behind the testis that stores and transports sperm. Spermatocele:…
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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,…
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Acute Limb Ischaemia
Overview Acute limb ischaemia refers to any sudden decrease in limb perfusion that causes a potential threat to viability. It is associated with pain, motor and sensory loss, and cold sensation. It affects one in about 6000 of the population 1 and is more common in the lower limb, with less than 17% of cases…
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Addison's Disease
Overview Addison's disease is a disease characterised by adrenal insufficiency. Adrenal insufficiency results in a decrease of the adrenal gland hormones: mineralocorticoids, glucocorticoids and to an extent androgens. There are many causes of addison's disease. The most common cause in the developed world is autoimmune (approximately 70% cases). Signs and symptoms of adrenal sufficiency don't…
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Acute Heart Failure
Overview Acute Heart Failure (AHF) is a life-threatening medical emergency defined as the rapid onset or sudden worsening of symptoms and signs of heart failure. It results from severe cardiac dysfunction leading to inadequate systemic cardiac output, elevated intracardiac pressures, or both. AHF can present either as de novo heart failure in a patient without…
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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.
Subarachnoid Haemorrhage / pathophysiology, complications and management
A subarachnoid haemorrhage (SAH) is a type of stroke that causes bleeding around the brain. Subarachnoid haemorrhage, the bleeding happens in a part of your head called the "subarachnoid space." Most spontaneous SAHs are caused by ruptured saccular aneurysms. Other causes of SAH include occult trauma, arteriovenous malformations/fistulae, vasculitides, intracranial arterial dissections, amyloid angiopathy, bleeding…
Liver Physiology
Explore the key functions of the liver, including metabolism, detoxification, bile production, and nutrient storage. This video provides a clear overview of liver physiology and its essential role in maintaining overall body homeostasis.
Cell Cycle (Overview, Interphase)
Understand the stages of the cell cycle with a focus on interphase, where cells grow, replicate DNA, and prepare for division. This video explains the roles of G1, S, and G2 phases, and how the cell ensures accurate progression through checkpoints.
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.
Adductor-related Groin Pain
Overview Adductor-related groin pain is a clinical entity characterised by pain localised to the hip-adductor region, with both tenderness of the adductors and recognisable pain reproduced by resisted hip adduction. It commonly affects athletes participating in sports involving kicking, sprinting, rapid acceleration, cutting or change of direction. 1 The term encompasses acute adductor injuries and…
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.