<unk> or medicine cabinet is a colloquial phrase and idiom used to describe an area with the highest concentration of medicine stockpile, production, or potential of sources for medicines. The phrase is used with the area to specify the scope, such as world's<unk> or nation's medicine cabinet.
Medicine chest 
Operation of computed tomography
Nuclear Medicine and Biology
Enterprise imaging
X-ray image intensifier
AfterImage
Scope 
Endoscopy unit