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.
Clear visual explanations used by medical and allied-health learners around the world.
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Browse by subject or jump straight into the explanation you need. No account required.
Cushing's Disease
Overview Cushing's disease is a ACTH dependent syndrome characterised by excess corticosteroid production from the adrenal glands. It is ACTH dependent because it is triggered by an ACTH-secreting pituitary tumour. Cushing's syndrome is an over arching term to describe hypercortisolaemia dependent of independent of ACTH. Adrenal Cushing's syndrome is different because it is hypercortisolaemia independent…
View topic ↗Miscarriage
Overview Miscarriage: Spontaneous abortion, or miscarriage, is defined as a clinically recognized pregnancy loss before the 20th week of gestation. Others define it as expulsion or extraction of an embryo or fetus weighing 500 g or less Abortion: After 20weeks Threatened miscarriage: A pregnancy less than 20 weeks’ gestation associated with vaginal bleeding, generally without cervical dilation.…
View topic ↗Selective IgA Deficiency
Overview Selective IgA deficiency is the most common primary immunodeficiency, defined by very low or absent serum IgA levels with normal levels of other immunoglobulins (IgG, IgM). Many patients are asymptomatic, but some develop recurrent mucosal infections, allergic disease, or autoimmune disorders. Prevalence is estimated at 1:300 to 1:700 in Caucasian populations. Diagnosis is often…
View topic ↗Bipolar Disorder
Overview Bipolar disorder, previously termed manic depression, is a psychiatric diagnosis characterised by abnormally elevated or irritable mood episode(s) accompanied by disruptive symptoms of distractibility, indiscretions, grandiosity, flight of ideas, hyperactivity, decreased need for sleep, and talkativeness. It is well known that bipolar disorder carries with it high mortality and morbidity rates. The lifetime risk…
View topic ↗Hyperparathyroidism
This section will mainly focus on Primary Parathyroidism Overview Primary Hyperparathyroidism (PHPT) is generalised disorder calcium, phosphate and bone metabolism due to increased secretion of parathyroid hormone normally leading to hypercalcaemia and hypophosphatemia. PHPT may present with recurrent nephrolithiasis, peptic ulcers, mental and muscle changes and less frequently bone resorption. Frequently, routine blood tests will…
View topic ↗Alzheimer's Disease
Overview Alzheimer disease is characterised by an insidious onset of symptoms with initial forgetfulness progressing over time to profound memory impairment with accompanying dysphasia, dyspraxia and personality change. Dementia: Clinical syndrome that is characterised by a progressive deterioration in cognition with resulting decline in function. Alzheimer disease: Characterised by an insidious onset of symptoms with initial…
View topic ↗Biceps Tendon Rupture
Overview A biceps tendon rupture is a partial or complete tear of the tendon attaching the biceps muscle to the shoulder or elbow. Proximal ruptures, usually involving the long head of the biceps at the shoulder, are more common and often result from age-related degeneration or associated rotator-cuff disease. They typically cause upper-arm pain, bruising…
View topic ↗Full resource library
Browse all topics ↗Choose how you learn
One idea. More than one way to see it.
Use the format that helps the topic click, then switch formats when you need to reinforce it.
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.

Respiration Gas Exchange
Learn how gas exchange occurs in the lungs, where oxygen is absorbed into the blood and carbon dioxide is released. This video explains the roles of alveoli, partial pressure gradients, and hemoglobin in efficient respiratory gas transport.

Chronic Pancreatitis Overview
Explore chronic pancreatitis in this video, covering its causes, pathophysiology, and hallmark symptoms such as abdominal pain and malabsorption. Learn about diagnostic approaches, complications, and current treatment strategies including enzyme replacement and lifestyle modifications.

Heart failure with reduced vs preserved ejection fraction – Pathophysiology and treatment
Heart failure explained: learn the causes, symptoms, tests, and treatments for heart failure with reduced and preserved ejection fraction. This video breaks down cardiac output, preload, afterload, contractility, and heart rate—the four determinants of heart performance—and shows how low cardiac output triggers compensatory mechanisms (Frank–Starling, sympathetic activation, RAAS) that can worsen ventricular remodeling. Viewers will…
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.
“The notes I make during his videos help me retain everything better.
“The drawings are amazing and super easy to remember.
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.
- Watch in a focused, ad-free study environment.
- Move between connected videos, notes, diagrams and questions.
- Know what belongs next instead of rebuilding the study path yourself.
- Test your understanding while the topic is still fresh.
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.



