Category: M
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Malposition
An unusual or unexpected position of something such as a fetus in the uterus or fractured bones. Faulty or abnormal position or placement, especially of the body or one of its parts. Not in the usual position; this term is commonly used to describe the position of a baby in the uterus when it takes…
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Malpighian layer
The deepest layer of the epidermis. The stratum germinativum: one of the layers of the epidermis.
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Malodorous
With a strong unpleasant smell.
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Mallory’s stain
Trichrome stain, used in histology to distinguish collagen, cytoplasm and nuclei.
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Mallory bodies
Large irregular masses which occur in the cytoplasm of damaged liver cells, often a sign of an alcohol-related disease.
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Mallet finger
A finger which cannot be straightened because the tendon attaching the top joint has been torn. Deformation of a finger due to sudden forced flexion (bending) of the terminal joint, leading to rupture of the tendon. As a result the individual is unable to extend (straighten) the terminal part of the finger, which remains bent…
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Malleolus
One of two bony prominences at each side of the ankle. Malleoli, bumplike projection on a bone, as on the inner and outer sides of the ankle. Rounded distal projections of the distal tibia and fibula that comprise the ankle. Either of the two protuberances on each side of the ankle: the lateral malleolus at…
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Malingerer
A person who pretends to be ill. One who pretends to be ill or suffering from a nonexistent disorder to arouse sympathy.
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Malignant tumour
A tumour which is cancerous and can grow again or spread into other parts of the body, even if removed surgically.
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Malignant pustule
A pus-filled swelling that results from infection of the skin with anthrax. Localized cutaneous necrosis in man at the point of entry of anthrax infection.