-gr
m
) -t) non-malignant malformations of the lymphatic system characterized by single or multiple fluid filled lesions.
Lymphangioma, also known as cystic hygroma, is a benign proliferation of tumored lymph vessels, and is rare. However, the tumors are important to recognize because they may mimic many vascular tumors including angiosarcomas and Kaposi's sarcoma.
These tumors may occur anywhere but usually present in the head and neck in children and infants. Visceral organs such as the lungs and gastrointestinal tract may also be involved. In the soft tissue, these tumors may be present as a soft fluctuant mass that varies in size.
The tumor is a benign neoplasm or hamartoma arising from lymphatic vessels, manifesting as a raised, soft, shaggy, bubbly, pinkish-white lesion; cosmetic considerations may warrant attempted removal of lymphangiomas.
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EKG, reading QRS waves
small square corresponds to 0.04 s interval
large square corresponds to 0.25 s interval
look at the bottom line waves. QRS should be either wide or narrow complex. Narrow is considered a thin spike that completes its oscillation in less than 2 1/2 boxes => 0.10 s interval.
the pt had signs of tachycardia, his pulse was near 140. He was treated with adenosine 12mL and then flushed with saline. Adenosine is supposed to stop the heart for a second and break the tachy rhythm to restore the normal heart rhythm. After the injection of adenosine his pulse dropped from 140 to 110 in few seconds.
