Category: G
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Glanzmann’s thrombasthenia
A rare autosomal recessive abnormality of platelet glycoprotein Ilb-IIIa, characterized by easy bruising and epistaxis that sometimes requires blood transfusions. Bleeding is prolonged, clot retraction is diminished, and platelets do not aggregate during blood coagulation or after addition of adenosine diphosphate. Treatments include platelet transfusions, progestational agents, and iron replacement, among others.
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Glans clitoridis
The tip of the clitoris. It is composed of the joining of two erectile bodies, the corpora cavernosa. It is covered by a prepuce (the front edge of the labia minora), and is the most highly innervated and sensitive part of the clitoris.
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Glandilemma
The covering or capsule of a gland.
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Gitter cell
A macrophage present at sites of brain injury. The cells are packed with lipoid granules from phagocytosis of damaged brain cells.
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Girdle symptom
A symptom in tabes as of a tight girdle, such as a feeling of constriction about the chest; also found in compression of the cord owing to collapse of the vertebrae, as in Pott’s disease.
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Gingivolabial
Concerning the gums and lips.
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Gigli’s saw
A flexible wire saw with specialized teeth used for cutting bony structures. It is operated manually by pulling its handles back and forth. It was first used to section the symphysis pubis as a way of making difficult deliveries easier.
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Gigantoblast
A very large nucleated red blood cell.
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Gifford’s reflex
Pupillary contraction resulting from endeavoring forcibly to close eyelids that are held apart.
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Gibson’s murmur
A continuous cardiac murmur that increases in systole, occurring in patients with patent ductus arteriosus. It is heard best at the left of the sternum in the first and second intercostal spaces.