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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Lymphoma
Types of Lymphoma Lymphoma is malignancy originating in the lymph nodes. There are two types: Hodgkins lymphoma Non-hodgkins lymphoma Classic Clinical Presentation Lymphadenopathy Constitutional symptoms Fever Night sweats Weight loss Differential Diagnosis of Lymphadenopathy Lymphoma Leukaemia Metastasis Infection Connective tissue disease – rheumatoid arthritis, SLE Infiltration – sarcoidosis Drugs – phenytoin Hodgkin's lymphoma Non-Hodgkin's lymphoma…
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Long-Term Complications of Diabetes (Overview)
Overview Classification Microvascular Complications Retinopathy Nephropathy Neuropathy Macrovascular Complications Coronary heart disease Cerebrovascular disease Diabetic foot Diabetic Retinopathy Overview Diabetes is the most common cause of blindness in the working population. Blindness is preventable. Annual retinal screening is advised for patients at risk. Pre-symptomatic screening enables laser photocoagulation to be used, aimed to stop production of…
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Primary Hyperaldosteronsim (Conn Syndrome)
Overview Primary hyperaldosteronism (also known as Conn syndrome when caused by a solitary aldosterone-producing adenoma) is an endocrine disorder characterized by the autonomous, unregulated overproduction of aldosterone from the zona glomerulosa of the adrenal cortex. Under physiological conditions, aldosterone secretion is regulated by the renin-angiotensin-aldosterone system (RAAS) and serum potassium levels. In primary hyperaldosteronism, aldosterone…
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Polyendocrine Metabolic Ovarian Syndrome
Overview PMOS; formerly polycystic ovary syndrome—PCOS In May 2026, PCOS was renamed polyendocrine metabolic ovarian syndrome (PMOS) to reflect its endocrine, metabolic, reproductive, dermatological and psychological effects. The terminology will transition gradually through to the 2028 international guideline update. It is not caused by multiple pathological ovarian cysts . Common chronic endocrine condition affecting approximately …
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Scaphoid Fracture
Overview Scaphoid fracture is the most common carpal bone fracture , accounting for ~60–70% of all carpal fractures. It occurs most frequently in young adults (15–40 years) following a fall on the outstretched hand (FOOSH). The scaphoid’s tenuous blood supply predisposes to non-union and avascular necrosis, especially in proximal fractures. Early recognition is essential as…
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DiGeorge Syndrome
Overview DiGeorge syndrome (22q11.2 deletion syndrome) is a congenital immunodeficiency and multisystem disorder caused by a microdeletion on chromosome 22. It leads to defective development of the third and fourth pharyngeal pouches, resulting in thymic hypoplasia/aplasia, hypocalcaemia due to parathyroid hypoplasia, and congenital heart defects. Prevalence is estimated at 1 in 4000 live births. Clinical…
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Henoch–Schönlein Purpura (IgA Vasculitis)
Overview Henoch–Schönlein purpura (HSP), now termed IgA vasculitis, is the most common systemic vasculitis in children, characterised by IgA1-dominant immune complex deposition in small vessels, particularly affecting the skin, joints, gastrointestinal tract, and kidneys. It predominantly occurs in children aged 3–10 years, with a slight male predominance, and often follows an upper respiratory tract infection.…
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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.
Chronic Kidney Disease (CKD) Pathophysiology
This video provides a clear overview of the pathophysiology of Chronic Kidney Disease (CKD), highlighting the progressive loss of renal function and underlying mechanisms. Understand how factors like hypertension, diabetes, and glomerular injury contribute to CKD development and progression.
Viral structure – capsid, envelope and genome overview
Discover how viral structure dictates infection, immunity, and transmission — learn viral structure, genomes, capsids, envelopes, and replication basics. This concise explainer breaks down virus biology using clear analogies and key technical terms like capsid, nucleocapsid, positive-sense and negative-sense RNA, segmented genomes, reverse transcriptase, and viral glycoproteins. You’ll understand how genomes (DNA or RNA, single-…
Ano In Fistula
Discover the causes, symptoms, and treatment options for anal fistulas, a painful condition often resulting from infection or abscess near the anus. This video provides a clear overview of the pathophysiology, diagnosis, and surgical management of ano-in fistula.
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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- Test your understanding while the topic is still fresh.
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.