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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Septic Arthritis
Overview Septic arthritis refers to infection in a joint; it is usually caused by bacteria but can be caused by fungi or mycobacteria. Septic arthritis due to bacterial infection is often a destructive form of acute arthritis. Arthritis: Inflammation of joint Arthrosis: Degeneration of joint Septic Arthritis: Infection of joint Pathophysiology Septic arthritis involves bacterial…
View topic ↗Vitamin B12 Deficiency Anaemia
Overview Vitamin B 12 (cobalamin) deficiency is a common cause of megaloblastic anemia, a variety of neuropsychiatric symptoms, and elevated serum homocysteine levels, especially in older persons. The recognition and treatment of vitamin B 12 deficiency is critical since it is a reversible cause of bone marrow failure and demyelinating nervous system disease. Anaemia (Anemia): The…
View topic ↗Anorectal Disease
Overview Anorectal conditions are a common presentation in the primary care setting. A history and physical examination usually will determine the etiology. Physical examination includes visual inspection, digital rectal examination, and anoscopy Anal Fissure More info on Anal fissures Anal Abscess More info on Anal Abscess Haemorrhoids More info on Haemorrhoids Other anorectal disease…
View topic ↗Biceps Tendon Rupture
Overview A biceps tendon rupture is a partial or complete tear of the tendon attaching the biceps muscle to the shoulder or elbow. Proximal ruptures, usually involving the long head of the biceps at the shoulder, are more common and often result from age-related degeneration or associated rotator-cuff disease. They typically cause upper-arm pain, bruising…
View topic ↗Spermatocele
Overview A spermatocele, or spermatic cyst, is a benign fluid-filled cyst arising from the epididymis, usually near the upper pole of the testis. It commonly contains clear or milky fluid with spermatozoa. Most spermatoceles are painless, discovered incidentally and do not require treatment. Epididymis: coiled structure behind the testis that stores and transports sperm. Spermatocele:…
View topic ↗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…
View topic ↗Spondylarthropathy
Overview The spondyloarthropathies are a diverse group of inflammatory arthritides that share certain genetic predisposing factors and clinical features. Their most characteristic feature is inflammatory back pain. Enthesitis, another characteristic feature, involves inflammation at sites where tendons, ligaments, or joint capsules attach to bone. Features of Spondylarthropathy Sacroiliac and spinal (axial involvement) Enthesitis at long attachments…
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Videos
Hand-drawn explanations that build the big picture as the concept unfolds.
Notes
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Questions
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Good places to begin
Explanations learners return to.
Heart failure with reduced vs preserved ejection fraction – Pathophysiology and treatment
Heart failure explained: learn the causes, symptoms, tests, and treatments for heart failure with reduced and preserved ejection fraction. This video breaks down cardiac output, preload, afterload, contractility, and heart rate—the four determinants of heart performance—and shows how low cardiac output triggers compensatory mechanisms (Frank–Starling, sympathetic activation, RAAS) that can worsen ventricular remodeling. Viewers will…
Hormones in body fluid homestasis (ADH/vasopressin, Aldosterone and Natriuretic peptides)
Explore how key hormones like ADH (vasopressin), aldosterone, and natriuretic peptides regulate body fluid balance, blood pressure, and sodium levels. This video breaks down their mechanisms of action, triggers, and roles in maintaining homeostasis.
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.
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.
Lambert-Eaton Myasthenic Syndrome
Overview Lambert–Eaton myasthenic syndrome (LEMS) is a rare autoimmune disorder of the presynaptic neuromuscular junction. It causes impaired acetylcholine release, producing the characteristic triad of proximal muscle weakness, reduced reflexes and autonomic dysfunction. LEMS may occur as a paraneoplastic syndrome—most commonly associated with small-cell lung cancer (SCLC)—or as a non-tumour-associated autoimmune disorder. Neuromuscular junction: connection…
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.