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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Parkinson's Disease
Overview Parkinson’s disease is a progressive neurodegenerative disorder characterised by tremor, rigidity, bradykinesia, and a wide spectrum of non-motor symptoms including sleep disorders, hyposmia, bladder and bowel dysfunction, fatigue, dementia, and other neuropsychiatric symptom. Although the disease has no cure, available treatments effectively control motor symptoms and improve quality of life. Parkinson disease affects approximately 1…
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 ↗Renal Cell Carcinoma
Overview Renal cell carcinomas (originate within the renal cortex) are responsible for 85% of all primary renal neoplasms. Transitional cell carcinomas of the renal pelvis are the next most common (~8%). Renal medullary carcinoma is a rare form of RCC seen in sickle cell disease. The most common pathological type of renal cell carcinoma is clear cell…
View topic ↗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…
View topic ↗Complex Regional Pain Syndrome (CRPS)
Overview CRPS is a disproportionate, regional pain syndrome of a limb that typically follows injury or surgery and features sensory, vasomotor, sudomotor/oedema, and motor/trophic changes. The prevalence after limb fracture/surgery varies widely (≈1–7% overall, higher in some distal radius cohorts) and early recognition with rehabilitation improves outcome. Important risk factors include fracture (especially wrist/ankle), immobilisation,…
View topic ↗Graves' Disease
Overview Graves' disease is the most common cause of hyperthyroidism, caused by an autoimmune reaction in which TSH receptor autoantibodies stimulate the thyroid gland, leading to an increase in the production of thyroid hormones. It’s named after Dr Robert James Graves, an Irish physician who in 1835 gave one of the first thorough clinical descriptions…
View topic ↗Diabetes Insipidus
56 year old lady recurrent presentations to your practice for polyuria and increased thirst. Random serum glucose and urinary glucose have returned normal. Patient has otherwise been well, complains of no dysuria, haematuria, fevers or night sweats . Overview Diabetes Insipidus (DI) is associated with inadequate arginine vasopressin (known as antidiuretic hormone) secretion or renal…
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Hand-drawn explanations that build the big picture as the concept unfolds.
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Questions
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Good places to begin
Explanations learners return to.
Pharmacology – Antiepileptics
Explore the mechanisms of action, indications, and side effects of common antiepileptic drugs used in seizure management. This video simplifies key pharmacological concepts behind medications like phenytoin, valproate, carbamazepine, and newer agents.
Superior mesenteric artery syndrome (SMA Syndrome) and Nutcracker Syndrome
Superior mesenteric artery syndrome is a rare cause of small bowel obstruction from compression of the third part of the duodenum by the superior mesenteric artery anteriorly and the aorta or vertebrae posteriorly. The cause is usually from the loss of mesenteric fat pad between the SMA and aorta.
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…
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.
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.