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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Tuberculosis
Overview Tuberculosis (TB) is a chronic, communicable infectious disease caused by the acid-fast bacillus Mycobacterium tuberculosis . It primarily affects the pulmonary parenchyma but possesses the capacity to disseminate to virtually any organ system via hematogenous and lymphatic spread. TB remains one of the leading infectious causes of mortality worldwide, representing a major global public…
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Microscopic Polyangiitis
Overview Microscopic polyangiitis (MPA) is a small-vessel necrotizing vasculitis, commonly associated with myeloperoxidase-ANCA (MPO-ANCA) positivity. It typically presents with glomerulonephritis and pulmonary capillaritis, but does not involve granulomatous inflammation, distinguishing it from GPA.Incidence: ~3–24 cases per million annually; more common in middle-aged adults and slightly more frequent in males. 1 MPO-ANCA (Myeloperoxidase-ANCA): An autoantibody typically…
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Pertussis
Author Megan Miner Armando Faigl Overview Pertussis, also known as “whooping cough”, is a contagious, acute respiratory infection caused by the bacterium Bordetella pertussis. In babies, the infection can sometimes lead to pneumonia and occasionally brain damage and can even be life threatening. Older children and adults can get whooping cough and can spread it…
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Angina Pectoris
Overview Angina Pectoris refers to the pain caused by myocardial ischaemia. Myocardial Ischaemia is usually caused by stenosis within the vessel decreasing blood flow to the muscle, but it can be caused by tachycardia, anaemia, aortic stenosis, left ventricular hypertophy and many other disease. Angina "latin choking". Angina Pectoris: Pain caused by myocardial ischaemia (not myocardial…
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Paget's Disease of the Breast
Overview Paget's disease of the breast is a rare cutaneous manifestation of an underlying breast malignancy, accounting for approximately 1% to 4% of all breast cancers. It is characterized by the intraepithelial infiltration of adenocarcinoma cells (known as Paget cells) into the epidermis of the nipple-areolar complex. Over 85% to 95% of patients with Paget's…
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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 Kidney Disease
Overview CKD is responsible for a substantial burden of illness and premature death. The kidneys are basically not working as good. Always assume a ↓ eGFR represents acute kidney injury until proven otherwise. Acute Kidney Injury: Rapid reduction in kidney function over hours to days, as measured by serum urea and creatinine and leading to a…
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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.
Atherosclerosis – Pathophysiology
Explore the pathophysiology of atherosclerosis, a chronic condition characterized by plaque buildup within arterial walls leading to narrowed and stiffened arteries. This video explains the processes of endothelial injury, lipid accumulation, inflammation, and plaque formation that contribute to cardiovascular disease.
Epididymitis Explained | Causes, Symptoms, Diagnosis and Treatment
Epididymitis is inflammation of the epididymis, the structure behind the testis that stores and transports sperm. It is usually caused by infection, with sexually transmitted organisms more common in younger men and urinary tract bacteria more common in older men. Typical features include unilateral scrotal pain, swelling, tenderness, and redness, sometimes with urinary symptoms or…
Basal ganglia overview
Basal ganglia explained: learn how these deep brain nuclei regulate movement, posture, and reward processing—key for understanding Parkinson’s and Huntington’s. In this clear, engaging video you’ll explore the anatomy and function of the basal ganglia, including the striatum (caudate nucleus and putamen), globus pallidus (GPe/GPi), subthalamic nucleus, and substantia nigra (pars compacta and reticulata). Discover…
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.
- 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.
Aspiration Pneumonia
Overview Aspiration pneumonia is an acute pulmonary infection caused by inhalation of bacteria-rich oropharyngeal or upper gastrointestinal material into the lower respiratory tract. It occurs when aspiration is combined with impaired airway protection, ineffective clearance and sufficient pathogenic bacterial burden. It is particularly important in older adults, people with neurological disease, frailty, dysphagia or reduced…
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.