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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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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Paediatric Viral Cutaneous Infection
Classical Exanthem Overview Exanthem refers to the cutaneous manifestation of a viral illness (enanthem is the manifestation in the mouth). Historically, 6 exanthems have been recognised, 4 of which are viral. However, obviously there are much more common exanthems. The six described are: Measles (measles virus) Scarlet fever ( streptococcus pyogenes ) – this is…
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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…
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Carotid Artery Disease
Overview Carotid artery disease refers to atherosclerotic narrowing of the carotid artery lumen. It is associated with approximately 10-15% of all ischaemic strokes. Stroke is the third leading cause of death and a principal cause of long-term disability in much of the industrialised world. The degree of internal carotid artery stenosis is the most important…
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Reactive Arthritis
Overview Reactive arthritis is a seronegative spondyloarthropathy that occurs after a genitourinary or gastrointestinal infection, typically presenting as an asymmetric oligoarthritis, often with associated conjunctivitis and urethritis (formerly Reiter’s syndrome). It most commonly affects young adults aged 20–40 and shows a strong association with HLA-B27. Incidence is estimated at 30–40 per 100,000, with higher rates…
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Septic Arthritis
Overview Septic arthritis refers to infection in a joint; it is usually caused by bacteria but can be caused by fungi or mycobacteria. Septic arthritis due to bacterial infection is often a destructive form of acute arthritis. Arthritis: Inflammation of joint Arthrosis: Degeneration of joint Septic Arthritis: Infection of joint Pathophysiology Septic arthritis involves bacterial…
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Sickle Cell Anaemia
Overview Sickle cell anaemia is an autosomal recessive genetic hemoglobinopathy caused by a single point mutation in the beta-globin gene ( HBB ) on chromosome 11. This mutation results in a substitution of valine for glutamic acid at the sixth position of the beta-globin chain, producing abnormal hemoglobin S (HbS). Under deoxygenated or stressful physiological…
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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.
Epithelial cells
Learn about epithelial cells, their various types, and the roles they play in protection, absorption, secretion, and sensation across body surfaces. This video explains their structural characteristics, classification, and locations in different tissues and organs.
Relapsing Polychondritis
Learn about Relapsing Polychondritis, a rare autoimmune disorder affecting cartilage in areas like the ears, nose, and respiratory tract. This video covers clinical features, pathophysiology, and current treatment approaches for effective diagnosis and management.
DNA Methylation and Cancer
Discover how DNA methylation plays a crucial role in cancer development by regulating gene expression and silencing tumor suppressor genes. This video explains the mechanisms of DNA methylation and its impact on cancer progression and potential therapeutic targets.
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.
Sweet’s Syndrome (acute febrile neutrophilic dermatosis)
Overview Sweet's syndrome, also known as acute febrile neutrophilic dermatosis , is an autoinflammatory skin disorder belonging to the group of non-infectious neutrophilic dermatoses . It is characterized by the sudden onset of high fever, leukocytosis with absolute neutrophilia, tender erythematous cutaneous papules, plaques, or nodules, and a dense dermal infiltrate of mature neutrophils on…
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.