Science Source December 1, 2009 DVD

Color-enhanced transmission electron micrograph of a mast cell. This enhancement is based on Photo Researcher's image number 7Y0962.

Color enhanced normal subclavian arteriogram.

Muscle end plates, magnification x20 @ 35mm.

Light micrograph of a sample of skin from a patient with scabies.

Micrograph of a hair follicle.

Auroscopic view of a central perforation of the eardrum.

Nasal polyp after excision. An irregular swollen, polypoid mucosa can develop, in which one or more nasal polyps may develop.

Otitis externa. The external auditory meatus is inflamed and covered by a scaling exudate, which spreads onto the pinna.

Disruption of the dentinal structure, with large numbers of darkly stained bacteria penetrating towards the pulp cavity.

Asbestos bodies in lung section. Long thin asbestos fibers coated with haemosiderin and protein to form brown filaments with a beaded pattern.

Coalworker's pneumoconiosis, also known as black lung disease. Progressive massive fibrosis. Cut surface. Amorphous collection of acellular proteinace...

Image of a "honeycomb," lung: In a Gough-Wentworth preparation, the exent of abnormality and interstitial fibrosis is evident.

Image of a "honeycomb," lung: The lung appears as large, cystically dilated air spaces surrounded by fibrosis.

Structural changes in asthma: The main events that take place in the airways in asthma are shown histologically.

Congestive cardiomyopathy or dilated cardiomyopathy (DCM) is a disease in which the ventricles of the heart dilate and cannot pump blood efficiently....

Appearances of myocardial infarct after 3-10 days. Myocardial infarction or a heart attack occurs when blood flow to part of the heart is obstructed....

Appearances of myocardial infarct after 24-72 hours. Myocardial infarction or a heart attack occurs when blood flow to part of the heart is obstructed...

Appearances of myocardial infarct after 12-24 hours. Myocardial infarction or a heart attack occurs when blood flow to part of the heart is obstructed...

Circumferential subendocardial infarction (tissue death beneath the endocardium). The endocardium is the membrane that lines the interior of the heart...

Pulmonary oedema - left heart failure. This histological section shows lung alveoli filled with pink-stained oedematous fluid.

Accelerated hypertension (high blood pressure) change in small arteries. Loose myxomatous fibrous intimal proliferation can be seen with reduced lumen...

Histology of atheroma (plaque caused by atherosclerosis) showing pink-stained fibrous areas and pale lipid-rich areas of plaque. The media is thinned...

Organization and re-canalization of a thrombus (blood clot). Macroscopic view of a coronary artery lumen being replaced by small luminas.

Cleft palate.

This lung shows multiple acute abscesses due to a staphylococcal infection.

An ultrasound showing serious pericardial effusion (fluid around the heart). The substantially increased pressure in the pericardial cavity interferes...

Neutrophil (white blood cell) emigration in acute inflammation. The neutrophils are emigrating into damaged tissue from the vessel.

Histology of cardiac muscle from a hypertrophied heart showing hypertrophy (overgrowth) of cardiac muscle in response to valve disease. The muscle thi...

Histology of cardiac muscle from a normal heart.

Light micrograph showing hypertrophy (increase in size) of skeletal muscle in response to exercise from the soleus muscle of a veteran marathon runner...

Light micrograph showing hypertrophy (increase in size) of skeletal muscle in response to exercise from the soleus muscle of a normal 50-year-old male...

Leukemic infiltration of marrow. Histologically, the normal marrow is replaced by abnormal monotonous leukemic cells.

Micrograph of acute leukemia. Marrow is extensively replaced by neoplastic cells, which efface normal marrow. Leukemia is a cancer of the blood or bon...

Bone marrow in CLL (chronic lymphocytic leukemia). Bone marrow is replaced by small mature lympohid cells. CLL is a cancer of the blood or bone marrow...

Light micrograph of a normal glomerulus. A glomerulus is a capillary ball-shaped structure in the kidney that aids in the formation of urine. Seen her...

Testicular germ-cell tumor with no differentiation. Germ-cell tumors that consist of undifferentiated elements are composed of solid and cystic soft t...

These ovaries show enlargement by multiple follicular cysts, which are particularly arranged around the periphery, together with thickening of the ova...

This endometrium shows complex atypical hyperplasia, with irregular branching glands.

This endometrium shows simple hyperplasia, with cystic dilation of glands.

An old, healed cerebral infarct. This is a transverse axial brain slice. With time, a regional cerebral infarct is replaced by a cystic gliotic cavity...

A large plaque is seen adjacent to the lateral ventricle. Multiple sclerosis is an autoimmune condition in which the immune system attacks the body's...

Light micrograph of bone from a patient with osteoporosis. When compared with image 2Y0355, which shows bone mass of a normal patient of the same age,...

Micrograph of a resin-embedded section of bone. The bone trabeculae are irregular and abnormally broad.

Osteosarcoma, a cancerous malignant bone tumor, at the lower end of a femur. The tumor expands and destroys the bone. The disease occurs in adolescenc...

Astrocytomas are cancers of the brain that originate in brain cells called astrocytes. Here, a lower grade astrocytoma has arisen in the frontal lobe,...

Glioblastomas are aggressive cancers, growing rapidly and invading surrounding tissue. The symptoms depend on the region of the brain affected, but ca...

Lichen planus. Clinical appearance of raised, red plaques with thick, opaque, white lines.

Light micrograph of a resin section of a bone biopsy from the iliac crest, showing normal cortical and trabecular bone. It has been stained with a sil...

Keloid scars are common on the upper trunk of young women. A keloid is an enlarged scar that grows beyond its original boundaries. It can itch, cause...

Diseased brain tissue from an Alzheimer's patient showing senile plaques located in the gray matter of the brain. Staining can identify the accumulati...