MATERIALS FOR DIAGNOSIS Pathologists must deal with a variety of different materials, including cytologic preparations, biopsies, surgical specimens, and frozen sections in approaching the diagnosis of pulmonary neoplasia. Cytologic Materials…
DEVELOPMENTAL ANOMALIES The most common anomalies encountered with the thyroid gland include abnormalities in gland development. Thyroid maldescent can result in the presence of lingual thyroid located in the back…
Noninfectious Causes Foreign material that is usually recognizable on microscopic examination can elicit a granulomatous reaction on the peritoneum. Starch granules from surgical gloves (7), douche fluid, and lubricants typically…
One final important point concerning the histopathologic interpretation of inflammatory skin diseases is that the lesions are dynamic and change is an intrinsic quality. It must be remembered that a…
Epithelial tumors have traditionally been subclassified based on the histologic type of the epithelial cells. Recent studies have confirmed the validity of this approach, as the different types of borderline…
The labia minora are rich in blood vessels, elastic fibers, and sebaceous glands and have few, if any, sweat glands and little or no adipose tissue. Bartholin glands, which are…
TRAUMA The eye is excised after severe ocular trauma if no potential for visual recovery exists. Blunt trauma to the eye may rupture the eyeball, especially at the junction of…
SPECIMEN HANDLING The gross examination of mass lesions in the liver in resection specimens should include number and size of nodules, macroscopic vascular invasion, distance of tumor from inked surgical…
The portion of the biopsy chosen for cryosections should optimally be about 0.5 cm in diameter and 1.0 cm in length. A variety of flash-freezing techniques have been described (14,15)….
