Microembolus
An embolus of microscopic size. For example, a tiny blood clot or little clump of bacteria. Like any embolus, it travels through the bloodstream, lodges in a blood vessel and blocks it.
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- Microhematuria
Hematuria means blood in the urine and microhematuria refers to hematuria that is visible only under a microscope. There is so little blood that it cannot be seen without magnification. Microhematuria is in contrast to gross hematuria in which the blood is so plentiful that it is visible grossly with merely the naked eye. Hematuria, […]
- Microorchidism
Abnormally small testes. To determine if the testes are too small, a device called an orchidometer is used that permits the testes to be compared to a series of plastic ovals (like miniature American footballs) of differing sizes. Microorchidism is a diagnostic feature, for example, of the Prader-Willi syndrome and certain other multiple malformation syndromes. […]
- Micropenis
An abnormally small penis. In medical practice, the dimension of the penis that is measured is the length. This measurement is taken along the upper surface of the shaft of the penis to the tip, using a measuring tape or, preferably, a ruler. The ruler is pressed firmly into the soft tissue over the pubic […]
- Microphallus
An abnormally small penis. Also called micropenis. In medical practice, the dimension of the penis that is measured is the length. The measurement is taken along the upper surface of the shaft of the penis to the tip, using a measuring tape or preferably a ruler. The ruler is pressed firmly into the soft tissue […]
- Microphthalmia
An abnormally small eye. Microphthalmia is a congenital malformation of the globe, a birth defect of the eye. A related term, anophthalmia, indicates that there is no eye at all. Also known as microphthalmos.