Cellular changes in heart failure: cardiac muscle remodeling following infarction.

Cardiac defibrillator and catheter ablation of the heart.

Thoracic pseudoaneurysm of the proximal descending thoracic aorta.

Superior vena cava syndrome, here shown as thrombus formation associated with prolonged placement of a central venous access device, such as a feeding catheter.

Bacterial endocarditis.

Acute ischemic stroke.

Deep vein thrombosis, shown here as a result of venous stasis, causing a pulmonary embolism.

Images relevant to obesity and its treatment (diet and exercise regimens).

Diabetic gastric motility disorder, showing bezoar formation (a mass of partially digested and undigested gastric residues).

Gastric motility, showing gastroparesis, or delayed stomach emptying due to a slowing of the rate of contractions (weak stomach).

Pyloric stenosis due to a gastrointestinal parasite.

Mesenteric carcinoma.

Illustration of colorectal carcinoma, a malignant cancerous tumor of the rectal area of the colon.

Illustration of lymphoma of the colon. Colonic lymphoma, usually non-Hodgkins lymphoma, is a rare type of colon cancer that tends to afflict the cecum and rectum.

Thyroid and parathyroid glands.

Pituitary gland "directing" thyroid gland hormone release. In this feedback system, hypothalamus neurosecretory action releases thyrotropin releasing hormone (TRH), stimulating the anterior pituitary to release thyroid stimulating hormone (TSH), which stimulates the thyroid to synthesize and release hormones T3 and T4. The cycle repeats when levels drop.

Collage of diabetes treatment advances: combined pancreas and kidney pelvic transplant (TL); pancreatic islet beta cell secreting insulin (TR); islet cell donor (baboon), pancreas, and pancreatic islet (C); islet cell transplant into liver portal vein (BL); and drug immunosuppression of cells (T-cells, macrophages, etc.) responding to transplants (BR).

TRAM (transverse rectus abdominis musculocutaneous) flap breast reconstruction procedure: abdominal tissue is used to reconstruct the breast.

Latissimus dorsi flap breast reconstruction procedure: back tissue is used to reconstruct the breast.

Benign breast tumor: pseudoangiomatous hyperplasia of the mammary stroma.