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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Common Variable Immunodeficiency
Overview Common Variable Immunodeficiency (CVID) is the most frequent clinically significant primary antibody deficiency, characterised by hypogammaglobulinaemia and impaired antibody responses. It typically presents with recurrent bacterial infections, autoimmunity, granulomatous disease, and an increased risk of malignancy. CVID affects both sexes equally, with a prevalence of ~1 in 25,000–50,000 individuals. Diagnosis is often delayed, with…
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Diverticular Disease
Overview Diverticula of the colon consist of outpouchings of mucous membrane through the muscle wall of the bowel. In the colon, diverticula are found most commonly in the sigmoid and descending colon, and become increasingly rare in passing from the left to the right side of the colon. They are unusual before the age of 40…
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Goitre and Nodules
Overview Goitre refers to an enlarged thyroid gland. Thyroid nodules are common in the general population, especially in women. Goitre results from follicular cell hyperplasia at one or multiple sites within the thyroid gland. Goitre can be classified based on morphology into diffuse or nodular. Nodular thyroid denotes the presence of single or multiple palpable…
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COPD
Overview The diagnosis of COPD is usually limited to individuals who have chronic airflow obstruction associated with tobacco smoke or some other noxious inhalant, and it is usually not difficult to distinguish it from other causes of chronic airflow obstruction. The most commonly associated clinical disorders associated with COPD are emphysema and chronic bronchitis. Chronic…
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Pneumonia
Overview Pneumonia is infection in the lower respiratory tract and is characterised by fevers, purulent sputum, leucocytosis, low oxygen levels and new lung infiltrates (consolidation) on radiographic imaging. The infection is identified by the site of consolidation. Consolidation is where the lung tissue is filled with fluid (ie. water, blood, pus, microbes). Types of pneumonia…
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Chronic Recurrent Multifocal Osteomyelitis
Overview Chronic Recurrent Multifocal Osteomyelitis (CRMO), also referred to as Chronic Non-bacterial Osteomyelitis (CNO), is a rare, autoinflammatory bone disease primarily affecting children and adolescents. It is characterized by sterile, non-infectious, inflammatory bone lesions that follow a chronic, waxing-and-waning clinical course. The disease results from an innate immune dysregulation featuring unbalanced pro-inflammatory cytokine production, leading…
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Hyperemesis Gravidarum
Overview Hyperemesis gravidarum (HG) exists on a spectrum of nausea and vomiting in pregnancy (NVP). NVP refers to symptoms of nausea, vomiting or dry retching commencing in the first trimester, with no other cause identified. 1 HG refers to severe, persistent vomiting that may result in malnutrition, dehydration, weight loss and debility due to illness.…
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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.
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.
Opioid Overdose
Learn about opioid overdose, its signs, symptoms, and the urgent steps needed for treatment and prevention. This video covers the causes, risk factors, and lifesaving interventions like naloxone administration.
Chemistry Revision – Elements and Atoms
Review the basics of elements and atoms in this educational chemistry video, covering atomic structure, subatomic particles, and the periodic table. Perfect for students and exam prep, this video simplifies key concepts to build a strong foundation in chemistry.
Hepatorenal Syndrome – causes, pathophysiology and mechanism
Learn about hepatorenal syndrome, a serious complication of advanced liver disease that leads to progressive kidney dysfunction. This video explains the underlying causes, pathophysiology, and mechanisms involving renal vasoconstriction and impaired perfusion despite structurally normal kidneys.
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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- 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.
De Quervain’s Tendinopathy
Overview De Quervain’s tendinopathy is a painful stenosing disorder affecting the tendons within the first dorsal extensor compartment of the wrist. It involves the abductor pollicis longus (APL) and extensor pollicis brevis (EPB) tendons as they pass beneath the extensor retinaculum near the radial styloid. Patients typically present with radial-sided wrist pain that is aggravated…
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.