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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Leukaemia
Overview Leukemia is a common malignancy in children and adults that occurs when alterations in normal cell regulatory processes cause uncontrolled proliferation of hematopoietic stem cells in the bone marrow. Leukaemia: Clonal proliferation of hematopoietic stem cells in the bone marrow Acute Leukaemia: Clonal proliferation of hematopoietic stem cells in the bone marrow that develops…
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Critical Limb Ischaemia
Overview Critical limb ischaemia (CLI) represents grade III and IV chronic limb ischaemia (based on the Fontaine classification). It presents with rest pain, breakdown of skin and inability to heal an injury, which can lead to infection or gangrene. If left untreated it may be necessary to amputate the affected limb. CLI develops in 1%…
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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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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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Acute Diabetes Complication (DKA, HHS, Hypoglycaemia)
Diabetic Ketoacidosis Ketoacidosis: A condition resulting from deficient insulin availability, leading to lipid oxidation and metabolism rather than glucose metabolism. The insulin absence results in free fatty acid (FFA) released from adipose tissue and in unregulated hepatic FFA oxidation and ketogenesis. Type I Diabetes: Autoimmune disease where there is attack of beta cells of the…
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Chronic Lower Limb Ischaemia: Intermittent Claudication
Overview Chronic lower limb ischemia can be classified using the Fontaine classification: I – asymptomatic II – intermittent claudication III – rest pain IV – ulcers/gangrene Grades III and IV are classified as Critical Limb Ischemia. Intermittent claudication is a type of chronic lower limb ischemia that presents with muscle pain on exercise and is…
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Antiphospholipid Syndrome (APS)
Overview Antiphospholipid Syndrome (APS) is an acquired autoimmune thrombophilia characterized by recurrent venous or arterial thromboses and/or pregnancy morbidity in the presence of persistent antiphospholipid antibodies (aPL). APS may occur as a primary condition or secondary to systemic lupus erythematosus (SLE). Prevalence of aPL in the general population is ~2%, but true APS is rare…
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Hand-drawn explanations that build the big picture as the concept unfolds.
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Good places to begin
Explanations learners return to.
Bone Homeostasis (Calcium and Phosphate) Hormones
Explore the key hormones regulating bone homeostasis, calcium, and phosphate balance in this video. Understand the roles of PTH, vitamin D, and calcitonin in skeletal health—essential for exams and clinical understanding of metabolic bone disorders.
Azathioprine – Pharmacology, mechanism of action, side effects,
Explore azathioprine, an immunosuppressive drug used in autoimmune diseases and organ transplantation. This video covers its pharmacology, mechanism of action in inhibiting purine synthesis, and common side effects including bone marrow suppression and gastrointestinal symptoms.
Active Diffusion – Primary and Secondary Active Transportation
Explore the mechanisms of Active Transport, focusing on the differences between primary and secondary active transport in this educational video. Learn how ATP and ion gradients drive molecule movement across membranes—essential for understanding cellular physiology and acing medical exams.
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.
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,…
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.