Category: P
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Pleuralgia
Pain originating in the lining of the lung or the chest wall; also called intercostal neuralgia.
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Plantar grasp reflex
An automatic neurological response to stimulation of the foot that results in a curling movement as if gripping the finger; found in newborns up to eight months. A grasp reflex resulting from light stimulation of the sole of the foot. This reflex lasts from birth until age 10 months.
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Planovagus
Flat or flaccid longitudinal arch of the foot.
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Pivot joint
A synovial joint in which movement is limited to rotation. A joint that permits rotation of a bone, the joint being formed by a pivot-like process that turns within a ring, or by a ring-like structure that turns on a pivot. A type of joint that permits only rotation, like the joint connecting the upper…
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Pituitary gigantism
Excessive growth caused by hypersecretion of pituitary growth hormone, commonly due to pituitary adenoma.
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Pilosebaceous melanin
Black or dark brown pigment produced by cells called melanocytes.
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Physiologic anorexia
Decrease in appetite due to physical illness.
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Phrenospasm
Involuntary spasm or twitching of the diaphragm.
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Phrenoplegia
Paralysis of the diaphram.
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Photorefractive keratotomy
Use of an excimer laser to reshape the curvature of the cornea without the creation of a corneal surface flap.