Category: S

Sinoatrial heart block. Heart block in which there is interference in the passage of impulses between the sinus node and the atria.  

Regional anesthesia of the upper face and maxillary tissues by infiltration of the maxillary division of the trigeminal nerve.  

A nonulcerative form of blepharitis in which waxy scales form on the eyelids. It is usually associated with seborrheic dermatitis of the surrounding skin.  

A technique for obtaining tissue by aspiration; e.g., to obtain tissue from the mucosa of the stomach and intestines.  

A technique for identifying the initial site of cancer metastasis. After injection of a radioactive tracer directly into the tumor mass, the tissue is massaged to encourage uptake of tracer by lymphatic vessels. A negative biopsy of the first node infiltrated by the tracer suggests that the malignancy has not yet spread to neighboring regional…

The self-quieting actions of infants, such as sucking on their fists and watching mobiles and other moving objects.  

A bath given to induce perspiration.  

Exposure of all or part of the nude body to sunlight.  

A bath that increases cutaneous blood flow.  

Water sprayed down upon the body from an overhead source.