This video animation on Percutaneous coronary intervention (PCI) or coronary angioplasty was developed by the NEJM team, some of its topics include:

Pathophysiology of ST segment elevation
Thrombus generation
Objectives of primary PCI

These PowerPoint presentations overview the different types of thyroid cancer as well as approaches to its diagnosis and management.

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THYROID CANCER ANATOMY
Thyroid cancer epidemiology
Pathology
Follicular cell origin (FCDC)
Parafollicular (C cells) – medullary
FCDC
Papillary (and follicular variant – FVPTC) (most)
Follicular
Oxyphilic (Hurthle cell)
Anaplastic
Diagnosis
History/examination (MEN, MTC FH)
TNM staging system
Ultrasound-guided FNAB of clinical or radiologically detected mass
Thyroid and Neck ultrasound
Serum [...]

Acute & Chronic Pancreatitis review: a PowerPoint presentation

PPT outline:

Anatomy
Pancreatic Physiology
Pathophysiology – Acute
Pathophysiology – Acute Normal Pancreatitis
Etiology of acute pancreatitis
Pathophysiology of chronic pancreatitis
Clinical presentation: symptoms and signs
Labs changes: difference bewtween acute & chronic
Role of imaging
Medical management
Complications
Surgical Treatment
Ranson’s Criteria and APACHE II for predicting prognosis

This video lecture is excellent for USMLE review, it explores an algorithm for the management of deep venous thrombosis and pulmonary thromboembolism.

This video reviews Pseudomonas aeruginosa’s microbiology, clinical features as well as the antibiotics that work against it.
Pseudomonas aeuruginosa USMLE Study Songs

This animation on migraine pathophysiology explores:

Neurotransmitters involved in nociception.
Serotonin receptors .

Trigeminovascular system.
Nociception
Pain modulation.
Pain pathways.

The following PPT file was developed by the International Council of Ophthalmology.
Lecture outline:

Common systemic diseases affecting the eye
Non-infectious: Endocrine – diabetes, thyroid
Connective tissue disease – RA/ SLE/ Wegeners/ PAN/ Systemic sclerosis
Vasculitides (GCA)
Sarcoidosis
Behcet’s Disease
Vogt Koyanagi Harada syndrome
Phakomatoses
Ophthalmic Manifestations of HIV Infection
Herpes Zoster Ophthalmicus
Kaposi’s Sarcoma
Toxoplasma Retinochoroiditis
Syphilis Retinitis

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These set of video lectures are a useful review for the  USMLE psychiatry test.  They explore the basics of a mental status examination when interviewing  psychiatric patients.
Lecture outline:

Mental status exam:
General description
Appearance, attitude rapport.
Behaviour /Activity
Akathesia: inability to sit still, restlessness (side effects of neuroleptic drugs)
Speech
Differences between:hallucination and illusion.
Types of hallucinations: auditory, visual, tactile, olfactory.
Content of thought
Minimental status [...]

This video song will help you to note the differences between Acute Tubular Necrosis (ATN) and  Acute Interstitial Nephritis (AIN).

This presentation explores the most relevant features of Neuropsychiatric Systemic Lupus Erythematosus:

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PowerPoint outline:

CNS Lupus
NPSLE based on the revised ACR criteria

NPSLE specific antibodies
Imaging: MRI
Therapeutic approach in CNS lupus – mild disease
Therapeutic approach in CNS Lupus – severe CNS disease: diffuse/nonthrombotic disease

These two videos review bone anatomy and structure, knowing this is essential for a proper understanding of osteoporosis pathophysiology: