It is seen in multiple conditions and has been classically described for Lepromatous leprosy as well as Paget's disease of bone.

The rhinosporidial mass has been classically described as a strawberry like mulberry mass.

For example, external fields will be constant, or when changing will be classically described.

Pellagra is classically described by "the four D's": diarrhea, dermatitis, dementia and death.

It is one of only two felids for which no subspecies have been classically described (the Bay Cat is the other).

Thermoreceptors have been classically described as having 'free' non-specialised endings; the mechanism of activation in response to temperature changes is not completely understood.

Stimulated emission can also be described classically, however, without reference to either photons, or the quantum-mechanics of matter.

Research in 1996 showed that the postero-lateral origin was more lateral than classically described.

The three classically described, cardinal signs and symptoms of TMD are:

The classically described situation in which this occurs is from a car striking a pedestrian's fixed knee ("bumper fracture").