That peculiar name refers to a type of nose in which the pyramid, the hump, the nasal bones and the triangular cartilages are overdeveloped, this is too large, however there is a constriction at the skin cover and the cartilages forming the lower third of the nose (tip, alae, colulmella, infratip, etc.). This is a very difficult and tricky type of nose, the surgeon has to weaken and reduce the upper two-thirds and at the same time reinforce and eventually augment or at least over support the lower one-third, by means of powerful grafting within structure rhinoplasty. Read at the link below to know more about tension noses and their treatment, also some images of real cases.