Acute appendicitis is inflammation of the appendix, a small pouch that hangs off of the beginning of the large intestine. Thus usually occurs due to an obstruction and can become infected.
In this image, the various layers of the appendix can be seen. The purplish haze seen through the appendiceal layers is evidence of the inflammatory cells.
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Cholangiocarcinoma is a cancer of the biliary tree; a system of ducts that carries bile from the liver to the small intestine where it is used to aid in digestion.
In image 2, the ducts, which appear as large circular structures, are disorganized with irregular lumens. The nuclei of their cells, which appear as smaller dark purple structures, show variation in shape and size when in normal ducts they should be the same size and shape. In image 3, the ducts are again disorganized. In this image, mucinous secretions are more evident than in image 2.
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Cholangiocarcinoma is a cancer of the biliary tree; a system of ducts that carries bile from the liver to the small intestine where it is used to aid in digestion.
In image 2, the ducts, which appear as large circular structures, are disorganized with irregular lumens. The nuclei of their cells, which appear as smaller dark purple structures, show variation in shape and size when in normal ducts they should be the same size and shape. In image 3, the ducts are again disorganized. In this image, mucinous secretions are more evident than in image 2.
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Hairy cell leukemia is a cancer of a type of white blood cell called the B-cell. Hairy cell leukemia involves the peripheral blood, bone marrow, liver and spleen.
In this image, near the center of the field, are several cells with round, bland nuclei and abundant pale cytoplasm. Sometimes this cytoplasm can have multiple thin projections, hence the name hairy cell leukemia.
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Amyloid deposits are insoluble collections of misfolded proteins. These misfolded proteins can be involved in a number of disease processes including amyloidosis, Alzheimer’s disease, rheumatoid arthritis and many more.
In this image, the amyloid deposits are highlighted by a special stain called Congo Red which gives them a bright red-orange color under standard microscopy. Under polarized light the amyloid will have an apple-green color.
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ABOUT USMDP is a group of doctors specializing in pathology who use their expertise to provide diagnostic services for physicians and patients. We are the leaders of a comprehensive team that includes medical technologists, pathology assistants, phlebotomists, clerical staff and others, working in hospital based and out-patient labs. We are committed to clinical excellence, service, education and communication. Our pathologists are all board certified by the American Board of Pathology in anatomic and/or clinical pathology. We have subspecialty expertise in surgical pathology, cytopathology, gastrointestinal pathology, molecular genetic pathology, renal pathology, chemical pathology, hematopathology, and transfusion medicine, and have special interest in neuropathology and genitourinary pathology, including gynecologic pathology. We direct the laboratories at Ascension Providence-Providence Park Hospital in Southfield, MI, Ascension Providence-Providence Park Hospital in Novi, MI and Ascension Providence Rochester Hospital in Rochester, MI, pillars of the Ascension Health system, Michigan. All of the labs under our medical direction are accredited by the College of American Pathologists (CAP), and are CLIA licensed. Additionally, the blood banks at each hospital are accredited by the AABB (formerly the American Association of Blood Banks). The Providence Hospital blood bank is also registered with and routinely inspected by the FDA. |
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