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Mycotic aneurysms
Mycotic aneurysms samer kareem 5,617 Views • 2 years ago

The headache, lethargy, and neck stiffness suggest subarachnoid hemorrhage secondary to rupture of a mycotic aneurysm. Mycotic or infected arterial aneurysms can develop due to metastatic infection from IE, with septic embolization and localized vessel wall destruction in the cerebral (or systemic) circulation. Intracerebral mycotic aneurysms can present as an expanding mass with focal neurologic findings or may not be apparent until aneurysm rupture with stroke or subarachnoid hemorrhage. The diagnosis of mycotic cerebral aneurysm can usually be confirmed with computed tomography angiography. Management includes broad-spectrum antibiotics (tailored to blood culture results) and surgical intervention (open or endovascular).

Cranial Nerves Mnemonic
Cranial Nerves Mnemonic samer kareem 18,764 Views • 2 years ago

Cranial Nerves Mnemonic

Fungi and Antifungal Agents
Fungi and Antifungal Agents samer kareem 1,638 Views • 2 years ago

This is a brief overview of antifungal agents, their mechanisms of action, and some fungi that they affect.

Intussusception of the Bowel video - Animation by Cal Shipley, M.D.
Intussusception of the Bowel video - Animation by Cal Shipley, M.D. samer kareem 7,819 Views • 2 years ago

In cases when the presentation is unclear, ultrasonography is the imaging methodology of choice. The characteristic finding is the presence of a "target sign". Ultrasonography is not required in patients with obvious clinical diagnosis (as seen in this patient). Such patients can proceed directly to treatment with diagnostic and therapeutic air (pneumatic) or water-soluble (hydrostatic contrast) enema.

Galactosemia
Galactosemia samer kareem 7,767 Views • 2 years ago

Galactosemia

Anatomy of the Human Abdominal Wall
Anatomy of the Human Abdominal Wall samer kareem 3,346 Views • 2 years ago

Clinical Anatomy Lecture Illustrate The Anatomy Of The Abdominal Wall

Gynecology 3D Animation
Gynecology 3D Animation samer kareem 42,056 Views • 2 years ago

Gynecology 3D Animation

Balloon Sinuplasty and Endoscopic Sinus Surgery
Balloon Sinuplasty and Endoscopic Sinus Surgery samer kareem 13,910 Views • 2 years ago

Sinusitis and Sinus Surgery Explained (Balloon Sinuplasty and Endoscopic Sinus Surgery)

Preeclamsia
Preeclamsia samer kareem 6,763 Views • 2 years ago

Formerly called toxemia, preeclampsia is a condition that pregnant women develop. It is marked by high blood pressure in women who have previously not experienced high blood pressure before. Preeclamptic women will have a high level of protein in their urine and often also have swelling in the feet, legs, and hands.

First Aid: Defibrillator
First Aid: Defibrillator samer kareem 6,431 Views • 2 years ago

Defibrillation is a treatment for life-threatening cardiac dysrhythmias, specifically ventricular fibrillation (VF) and non-perfusing ventricular tachycardia (VT). A defibrillator delivers a dose of electric current (often called a countershock) to the heart.

Normal labor delivery
Normal labor delivery samer kareem 37,357 Views • 2 years ago

childbirth normal labor delivery 3d medical animation company healthcare 3d visualization san antoni

Exterior Cerclage
Exterior Cerclage samer kareem 2,206 Views • 2 years ago

Cerclage is indicated in a patient with a history of painless cervical dilation and a second trimester loss. It is also indicated in a patient with a history of preterm birth and a short cervix found on ultrasound between 16-24 weeks gestation. Cerclage placement occurs after the first trimester in case the pregnancy is genetically abnormal and would likely result in a first trimester loss.

Integral Leg Prosthesis System - 3D Overview
Integral Leg Prosthesis System - 3D Overview samer kareem 13,730 Views • 2 years ago

Integral Leg Prosthesis System surgical procedure performed

Meckel's Diverticulum
Meckel's Diverticulum samer kareem 5,795 Views • 2 years ago

The differential diagnosis for this child's painless hematochezia includes Meckel's diverticulum as well as vascular malformations. Meckel's diverticulum results from a failure of the vitelline duct to obliterate during the first 8 weeks of gestation, leaving behind a blind pouch often containing ectopic gastric tissue. Meckel's diverticulum classically affects children age ~:2 but can also occur in older children or even adults. Young children are more likely to experience painless bleeding due to mucosal irritation from gastric acid; adolescents and adults are more likely to have signs of obstruction. A technetium-99 nuclear scan will identify the diverticulum, which is usually located in the right lower quadrant of the abdomen within 2 feet of the ileocecal valve. Technetium-99 concentrates in the parietal cells of the diverticulum and stomach. The scan is also known as "Meckel's scan" due to its high specificity. A symptomatic Meckel's diverticulum is generally treated with surgical resection.

Tibial Stress Fracture
Tibial Stress Fracture samer kareem 7,263 Views • 2 years ago

-Tibial stress fractures are common in athletes and nonathletes who suddenly increase their physical activity. Clinical features include pain, localized tenderness, and swelling. Plain x-ray is <50% sensitive for stress fractures, especially in the first 2-3 weeks after the onset of symptoms. MRI is preferred over bone scan or ultrasound as it can show the fracture line that extends through the cortex into the medullary line. MRI can also identify ligament, muscle, and cartilage injuries. However, MRI findings may be persistently abnormal for up to 1 year after the stress fracture has healed.

Attention Deficit Hyperactivity Disorder
Attention Deficit Hyperactivity Disorder samer kareem 4,577 Views • 2 years ago

Attention deficit hyperactivity disorder (ADHD) is a mental disorder of the neurodevelopmental type. It is characterized by problems paying attention, excessive activity, or difficulty controlling behavior which is not appropriate for a person's age.

Hand Anatomy
Hand Anatomy samer kareem 9,947 Views • 2 years ago

Hand Anatomy

Serotonin Syndrome
Serotonin Syndrome samer kareem 3,358 Views • 2 years ago

Symptoms of serotonin syndrome include a classic triad of mental status changes (eg, anxiety, delirium, confusion, restlessness), autonomic dysregulation (eg, diaphoresis, tachycardia, hypertension, hyperthermia, diarrhea, mydriasis), and neuromuscular hyperactivity (eg, hyperreflexia, tremor, rigidity, myoclonus, ocular clonus). Serotonin syndrome is clinically diagnosed and laboratory tests are used to rule out other etiologies. It usually occurs due to inadvertent interactions between drugs, therapeutic use of multiple serotonergic agents, or serotonergic medication overdose. Treatment involves discontinuation of serotonergic drugs, supportive measures, and sedation with benzodiazepines. In severe cases, a serotonin antagonist (cyproheptadine) may be used.

Catatonia
Catatonia samer kareem 7,241 Views • 2 years ago

This video illustrates several forms of catatonia including waxy flexibility, forced grasping, opposition, negativism and aversion.

The male orgasm
The male orgasm samer kareem 56,360 Views • 2 years ago

The fuel for the process leading to orgasm is testosterone, a hormone produced in steady supply by the testicles. The testicles also make millions of sperm each day, which mature and then are mixed with whitish, protein-rich fluids. These fluids nourish and support the sperm so they can live after ejaculation for a limited time. This mixture of fluid and sperm, known as semen, is what is moved through the urethra and out the penis during orgasm.

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