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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Personality Disorders
Quotes “I'm so good at beginnings, but in the end I always seem to destroy everything, including myself.” ― Kiera Van Gelder “I need them to be aware and present with me in the midst of the storm, not just tell me what to do.” ― Kiera Van Gelder Overview The term ‘personality disorder’ is frequently…
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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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RA Related Pleural Effusion
Overview Rheumatoid pleural effusion (RPE) is an uncommon extra‑articular manifestation of rheumatoid arthritis (RA), occurring in ~2–5% of patients, more often in middle‑aged men with high rheumatoid factor (RF) titres, despite RA being more common in women. It typically presents during active disease or in patients with rheumatoid nodules, but can occasionally precede joint symptoms.…
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Fibromyalgia
Overview Fibromyalgia is a chronic, nociplastic pain condition characterised by widespread pain with prominent fatigue, sleep disturbance, and cognitive symptoms, reflecting altered central pain processing rather than tissue injury. Global prevalence is ~2–4%, higher in women, ages 20–60, and in those with mood/sleep disorders, obesity, low socioeconomic status, and comorbid rheumatic disease. Major complications include…
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Trigger Finger (Stenosing Tenosynovitis)
Overview Trigger finger is a condition in which a finger or thumb catches, clicks or locks as it bends and straightens. It occurs when the flexor tendon cannot glide smoothly through the A1 pulley at the base of the digit. The affected digit may be painful and stiff, particularly on waking, and may need help…
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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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Carpal Tunnel Syndrome
Overview Carpal tunnel syndrome (CTS) is a compressive neuropathy of the median nerve as it passes beneath the transverse carpal ligament at the wrist. It is the most common peripheral nerve entrapment syndrome and typically causes nocturnal paraesthesia, numbness or pain involving the thumb, index finger, middle finger and radial half of the ring finger.…
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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.
Foot Drop – common peroneal nerve dysfunction
Understand foot drop, a condition often caused by common peroneal nerve dysfunction, leading to difficulty lifting the front part of the foot. This video explains the underlying anatomy, common causes, clinical signs, and approaches to diagnosis and treatment.
Acute Cholecystitis – Overview (signs and symptoms, pathophysiology, treatment)
Explore the key features of acute cholecystitis, including its signs, symptoms, and underlying pathophysiology. This video also reviews diagnostic strategies and treatment options such as antibiotics, supportive care, and cholecystectomy.
Oxygen – Haemoglobin Dissociation Curve – Physiology
This video explains the oxygen-haemoglobin dissociation curve, detailing how oxygen binds and releases from haemoglobin under varying physiological conditions. Understand key factors affecting oxygen delivery and uptake essential for respiratory and cardiovascular health.
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.
Femoroacetabular Impingement Syndrome
Overview Femoroacetabular impingement syndrome (FAIS) is a motion-related clinical disorder of the hip in which symptoms and clinical signs occur in association with characteristic femoral and/or acetabular morphology. The accepted diagnostic concept is a triad of symptoms, clinical signs and imaging findings ; bone morphology alone does not establish the syndrome. Patients commonly present with…
View this topic ↗Deep Neck Infection Causes, specific syndromes and symptoms, Complications & TreatmentExtensor Tendon Anatomy & Injuries Explained | Zones, Clinical features and examinationApoptosis – internal and external pathwaysMCL Knee Tear Explained Symptoms, Grades and TreatmentPharmacodynamics Explained Agonists, Antagonists, Efficacy & AffinityFlexor Tendon Injury & Anatomy Explained Zones, Anatomy, Diagnosis & Treatment
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.