Category: C

The immunization of unvaccinated children at the most convenient times (e.g., on the first day of school) rather than at the optimal time for antibody production. Because many children miss vaccines at regularly scheduled times, catch-up immunization offers unvaccinated children, their families, and the communities in which they live a second opportunity for disease prevention…

Cold-induced urticaria that may progress to angioedema.  

Urticaria that occurs frequently for 6 weeks or more. It is often associated with autoimmune disease.  

Surgical implantation of the ureter into the skin. This allows urine to drain via the ureter to the outside of the body by going through the stoma.  

Doppler ultrasonography that uses spectral Doppler in a constant series of echoes both originating and being received by the same transducer. It is used to study obstruction to blood flow through vessels.  

Any longstanding, slowly healing ulcer of a lower extremity, especially one caused by occlusive disease of the arteries or veins or by varicose veins.  

Any tumor of connective tissue such as fibroma, lipoma, chondroma, or sarcoma.  

A malignant growth made up of two or more different cell types occurring simultaneously in the same location.  

The proximal and distal convoluted tubules of the nephron that, with the loop of Henle and collecting tubule, form the renal tubule through which the glomerular filtrate passes before entering the renal pelvis.  

One of the small ducts that receive urine from several renal tubules, which join together to provide a passage for the urine to larger straight collecting tubules (papillary ducts of Bellini) that open into the pelvis of the kidney.