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.
Clear visual explanations used by medical and allied-health learners around the world.
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Temporal Arteritis (Giant Cell Arteritis)
Overview Giant cell arteritis (GCA), also known as temporal arteritis or cranial arteritis, is the most common systemic vasculitis in adults. It is a granulomatous panarteritis that selectively targets medium and large-sized arteries, displaying a strong tropism for the branches of the external carotid artery (particularly the superficial temporal artery) and the aorta. The disease…
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Paracetamol Overdose
Overview Paracetamol overdose is a common cause of hospital presentation. Paracetamol is an analgesic and antipyretic drug used in both children and adults. Its mechanism of action is yet to be fully determined, and is likely to involve a number of pain pathways. When taken in excess it can cause signs such as vomiting, right…
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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…
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Parkinson Plus Syndrome
Overview Parkinson-Plus syndromes (also known as atypical parkinsonism ) are a heterogeneous group of neurodegenerative diseases characterized by parkinsonian features—bradykinesia, rigidity, tremor, and gait impairment—occurring alongside additional ("plus") prominent neurological signs. These extra features typically include early postural instability with falls, vertical supranuclear gaze palsy, severe autonomic failure, cerebellar ataxia, early cognitive decline, or cortical…
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Sweet’s Syndrome (acute febrile neutrophilic dermatosis)
Overview Sweet's syndrome, also known as acute febrile neutrophilic dermatosis , is an autoinflammatory skin disorder belonging to the group of non-infectious neutrophilic dermatoses . It is characterized by the sudden onset of high fever, leukocytosis with absolute neutrophilia, tender erythematous cutaneous papules, plaques, or nodules, and a dense dermal infiltrate of mature neutrophils on…
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Myelofibrosis
Overview Myelofibrosis is a type of myeloproliferative diseasecharacterized by clonal myeloid expansion, followed by progressive fibrous connective tissue deposition in the bone marrow, resulting in bone marrow failure. Clonal evolution can also occur, with an increased risk of transformation to acute myeloid leukemia. In addition, disabling constitutional symptoms secondary to the high circulating levels of…
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Conjunctival Disease (Conjunctivitis)
Overview The conjunctiva is a thin, translucent mucous membrane that lines the posterior surface of the eyelids (palpebral conjunctiva), reflects over the anterior sclera (bulbar conjunctiva), and forms the superior and inferior ciliary junctions (fornices) up to the corneal limbus. Conjunctival diseases encompass a wide spectrum of infectious, allergic, inflammatory, degenerative, and autoimmune conditions. Among…
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Browse all topics ↗Choose how you learn
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.
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.

Immunology Innate Immunity (NOD Like Receptors)
Learn about NOD-Like Receptors (NLRs) in this immunology video, focusing on their role in detecting intracellular pathogens and initiating inflammatory responses. Ideal for exam prep, this video breaks down NLR types, inflammasome activation, and their significance in innate immunity.

Microbiology – Overview
Get an introduction to microbiology by exploring the major groups of microorganisms, including bacteria, viruses, fungi, and protozoa. This video covers their basic structure, classification, and roles in health and disease to build a strong foundation in the subject.

Mitral Regurgitation (incompetence)
Learn the essentials of mitral regurgitation, including its underlying pathophysiology, clinical presentation, and treatment options. This video explains how valve dysfunction leads to backflow of blood, causing symptoms like dyspnea and fatigue, and outlines both medical and surgical interventions.
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.
“The notes I make during his videos help me retain everything better.
“The drawings are amazing and super easy to remember.
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.
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.



