Category: T
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Tripartite placenta
A three-lobed placenta attached to a single fetus.
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Triple phosphate
Calcium, ammonium, and magnesium phosphate.
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Traumatic peritonitis
Acute peritonitis due to injury or wound infection.
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Talc peritonitis
Peritonitis due to particles of talcum powder in the peritoneal cavity (e.g., postoperatively).
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Tears of the perineum
Laceration of the perineum during delivery. There are four degrees of severity caused by overstretching of the vagina and perineum during delivery. Fetal malposition increases the chance of tears occurring.
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Tooth perforation
An opening through the wall of a tooth, produced by pathologic processes or accidentally, thereby exposing the dental pulp. It is also called pulp exposure.
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Threshold percussion
Percussing lightly with the fingers on a glass-rod pleximeter, the far end of which is covered with a rubber cap. The cap is usually placed on an intercostal space. This technique is used to confine the percussion to a very small area.
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True pelvis
The portion of the pelvis lying below the iliopectineal line. The dimensions of the true pelvis are of obstetrical significance in determining the success of fetal descent. The section of the pelvic cavity located beneath the iliopectineal line.
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Thalamic peduncle
One of four groups of fibers known as thalamic radiations that connect the thalamus with the cerebral cortex.
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Tropical spastic paraparesis
gradually progressive disease of the spinal cord caused by infection with human T-cell lymphotropic virus— I.