See Also: middle mediastinal mass(medicine)
posterior mediastinal mass(medicine)
middle ear mass(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
depth(dictionary)
depth(dictionary)
In Depth(money)
Mediastinal(medicine)
Depth(medicine)
in-depth(dictionary)

depth of field (medicine) and middle mediastinal mass (medicine)


depth of field (medicine)


depth of field
<microscopy> The depth or thickness of the object space that is simultaneously in acceptable focus.

The distance between the closest and farthest objects in focus within a scene as viewed by a lens at a particular focus and with given settings. The depth of field varies with the focal length of the lens and its f-stop setting or numerical aperture, and the wavelength of light. Depth of fields only a small fraction of a micrometre can be achieved at 546 nm with microscope lenses of N.A. Greater than 0.9.


middle mediastinal mass (medicine)


middle mediastinal mass
<radiology> Mnemonic: not VD, 90% malignant, Nodes, tumour (metastasis, lymphoma/leukaemia), infection, inhalational disease, Castleman disease, Tumour, primary lung, trachea, oesophagus carcinoma, Vascular, aneurysm, haematoma, Duplication cyst, bronchogenic, enteric, neurenteric