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Spleen Angiogram

April 19, 2012, 5:36 am
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The splenic artery supplies the spleen and substantial portions of the stomach and pancreas. The splenic artery courses superior and anterior to the splenic vein, along the superior edge of the pancreas. Near the splenic hilum, the artery usually divides into superior and inferior terminal branches, and each branch further divides into four to six [...]
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Laparotomy

July 6, 2012, 6:13 am
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A laparotomy is a surgical procedure involving a large incision through the abdominal wall to gain access into the abdominal cavity. Photo from Flickr (deflam). This laparotomy was performed for Abdominal Aortic Aneurysm. The most common incision for laparotomy is the midline incision, a vertical incision which follows the linea alba. The upper midline incision usually extends from the xiphoid process to the umbilicus. A typical lower midline incision is limited [...]
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Abdominal Aneurysm MRA

July 7, 2012, 6:15 am
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An abdominal aortic aneurysm is usually diagnosed by physical exam, ultrasound, or CT. Plain abdominal radiographs may show the outline of an aneurysm when its walls are calcified. However, this is the case in less than half of all aneurysms. Ultrasonography is used to screen for aneurysms and to determine the size of any present. Additionally, free peritoneal [...]
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Coarctation of the Aorta

August 30, 2012, 6:03 am
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Coarctation of the aorta, or aortic coarctation, is a congenital condition whereby the aorta narrows in the area where the ductus arteriosus (ligamentum arteriosum after regression) inserts. Image of this angiogram from Neurology.org (link) Aortogram shows focal aortic stenosis distal to the left subclavian artery orifice Other similar posts
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Polyarteritis Nodosa

September 6, 2012, 6:07 am
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Polyarteritis nodosa  is a vasculitis of medium & small-sized arteries, which become swollen and damaged from attack by rogue immune cells. (from Wikipedia) Image from NEJM (link)  Coronary angiogram demonstrating inflammation of the coronary arteries “These findings on coronary angiography are most consistent with severe generalized coronary arteritis. This 25-year-old woman had been given a diagnosis of polyarteritis nodosa [...]
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Aorta and Vena Cava

September 12, 2012, 6:07 am
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Human thorax and pectoral girdle with isolated arteries and veins The abdominal (or thoracic) aorta and the inferior vena cava are the major artery and vein, respectively, that follow the spine down to the pelvis. (from biomedicalephemera link) Image from biomedicalephemera tumblr (link) Traité complet de l’anatomie de l’homme comprenant la medecine operatoire, par le docteur Marc Jean Bourgery. Illustrated by Nicolas Henri Jacob, [...]
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Vein Viewer

October 1, 2012, 6:23 am
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U.S.-based Luminetx has developed the VeinViewer to afford medical professionals a quick and convenient look at a patient’s vasculature. A near-infrared LED (light emitting diode) source differentiates red blood cells of subcutaneous veins from surrounding tissues and arteries. Using a detector and a computer, the VeinViewer then digitizes received near-infrared light, produces an image, and [...]
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Capillary SEM

December 9, 2012, 5:15 am
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Capillary with red blood cells Color-enhanced image of a capillary. The endothelial cells (purple) that line the blood vessel are surrounded by supporting pericytes (turquoise). Two red blood cells can be seen inside the capillary. Image from Wellcome Images (link)  photo credit Rob Young. Creative Commons by-nc-nd 2.0 UK: England & Wales Other similar posts
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Polymorphonuclear Lymphocytes

December 11, 2012, 5:11 am
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Polymorphonuclear leukocytes (PMN), or granulocytes, are a type of white blood cell. They arise from the myeloid cell line in the bone marrow and help the body to fight infection. PMNs include neutrophils, basophils and eosinophils, which circulate in the bloodstream, as well as mast cells, which reside in the tissues. Their primary role is to [...]
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Petechiae

January 8, 2013, 5:25 am
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Petechiae are small (1-2mm) red or purple spots on the body, caused by a minor hemorrhage (broken capillary blood vessels). Image from forensics4fiction.com The most common cause of petechiae is through physical trauma such as a hard bout of coughing, vomiting or crying, which can result in facial petechiae, especially around the eyes. Petechiae in this instance are harmless and [...]
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Angioma

April 17, 2013, 6:07 am
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Angiomas are benign tumors derived from cells of the vascular or lymphatic vessel walls (epithelium) or derived from cells of the tissues surrounding these vessels Image credit: Michel Royon (link) Image made by Dr. Michel Royon, by using digital subtraction angiography – taking an X-ray of some body part, injecting fluorescent stuff into the vessels, then taking a second X-ray. Overlay the two images, subtract the non-fluorescent [...]
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Maffucci

May 5, 2013, 6:16 am
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Maffucci syndrome is distinguished from similar disorders involving enchondromas by the presence of red or purplish growths in the skin consisting of tangles of abnormal blood vessels (hemangiomas). Affected individuals occasionally also have lymphangiomas, which are masses made up of the thin tubes that carry lymph fluid (lymphatic vessels). These growths may appear anywhere on [...]
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Hydrocephalus skull

June 17, 2013, 5:58 am
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Hydrocephalus, also known as “water on the brain,” is a medical condition in which there is an abnormal accumulation of cerebrospinal fluid (CSF) in the ventricles, or cavities, of the brain. This may cause increased intracranial pressure inside the skull and progressive enlargement of the head, convulsion, tunnel vision, and mental disability. Hydrocephalus can also cause death. (adapted from wikipedia) Image source (sutured infection. tumblr [...]
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Hemifacial flushing

June 18, 2013, 6:02 am
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Hemifacial flushing developed in a 48-year-old man after he underwent laparoscopic cholecystectomy and pancreatic necrosectomy. Image from NEJM (link). Image from Peter Keogh, MB, B.Ch. After the induction of general anesthesia, a central venous catheter had been inserted into his left internal jugular vein under ultrasonographic guidance, without the use of local anesthetic infiltration. Hemifacial [...]
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Miguel Servet stamp

June 25, 2013, 6:22 am
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Servet

This 2011 stamp from Spain honors the 500th anniversary of the birth of Miguel Servet and schematically depicts the systemic and pulmonary circulatory systems. Servet is also known as Michael Servetus and Michel de Villeneuve. He was born in 1511 in Villaneuve de Sijena, Spain, and was a famous Spanish theologian, physician, cartographer, and humanist. [...]
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Muscular Artery

July 21, 2013, 6:12 am
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Muscular artery. Van Gieson’s Stain is a mixture of Picric Acid and Acid Fuchsin. It is the simplest method of differential staining of Collagen and other Connective Tissue. Image from I-heart-histology (link) Other similar posts
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