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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Shingles (Herpes Zoster)
Overview Shingles is reactivation of latent varicella-zoster virus (VZV) following previous chickenpox or, less commonly, varicella vaccination. After primary infection, VZV remains dormant in the dorsal-root or cranial-nerve ganglia. Reactivation occurs when VZV-specific cell-mediated immunity declines. In Australia, incidence is approximately 560 cases per 100,000 people annually and increases markedly after age 50. Lifetime risk…
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Chronic inflammatory demyelinating polyneuropathy (CIDP)
Overview Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is an acquired immune-mediated disorder of peripheral nerves and nerve roots, causing demyelination, impaired nerve conduction, weakness, sensory disturbance and reduced or absent reflexes. Typical CIDP causes progressive or relapsing symmetrical proximal and distal weakness with sensory loss developing over at least 8 weeks . This time course helps…
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Undifferentiated Connective Tissue Disease (UCTD)
Overview UCTD is a systemic autoimmune disease with features of connective tissue disease (CTD), but does not fulfill classification criteria for any specific CTD such as SLE, Sjögren’s syndrome, systemic sclerosis, or polymyositis. It is a diagnosis of exclusion used for patients with persistent autoimmune features who do not evolve into a defined CTD. Commonly…
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Systemic Sclerosis (SSc)
Overview Systemic sclerosis (SSc), also known as scleroderma, is a rare chronic autoimmune connective tissue disease characterized by f ibrosis, vasculopathy, and autoimmunity. It primarily affects the skin but can also involve the lungs, GI tract, kidneys, and heart. The estimated prevalence is 50–300 per million, with a female-to-male ratio of ~4:1, and peak onset…
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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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Chronic Granulomatous Disease
Overview Chronic granulomatous disease (CGD) is a rare, inherited primary immunodeficiency characterised by defective function of the NADPH oxidase enzyme complex in phagocytes, leading to failure of the oxidative burst required for intracellular killing of pathogens. This results in recurrent, often life-threatening bacterial and fungal infections, particularly with catalase-positive organisms, and predisposes to granuloma formation…
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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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Upper GI Bleed Causes- Overview
Learn the major causes of upper gastrointestinal bleeding, including peptic ulcers, varices, and Mallory-Weiss tears. This video provides a concise overview of clinical presentation, pathophysiology, and diagnostic approach.
Achalasia (esophageal) – signs and symptoms, pathophysiology, investigations and treatment
Achalasia is a rare disorder that results from progressive destruction of ganglion cells in the myenteric plexus of the oesophageal wall. The destruction of these cells leads to the inability of the lower oesophageal sphincter to relax, and leads to the loss of peristalsis of the distal oesophagus. As a result there is dilatation of…
Inflammatory mediators and the inflammatory response
Discover the essential facts about inflammation in this comprehensive video! Learn how your body’s natural defense mechanism works to protect against injury, infection, and illness, and understand the difference between acute and chronic inflammation. We will look at how an injury triggers inflammation and the inflammatory mediators involved.
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.
Chronic inflammatory demyelinating polyneuropathy (CIDP)
Overview Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is an acquired immune-mediated disorder of peripheral nerves and nerve roots, causing demyelination, impaired nerve conduction, weakness, sensory disturbance and reduced or absent reflexes. Typical CIDP causes progressive or relapsing symmetrical proximal and distal weakness with sensory loss developing over at least 8 weeks . This time course helps…
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.