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. 2018 May 15;45(3):214–221. doi: 10.5999/aps.2017.01193

Fig. 3. Causes of groove or hollowness.

Fig. 3.

(A) Normal condition. (B) Appearance of tear trough deformity (TTD) through the atrophy of skin and subcutaneous fat in the suborbital area. (C) Appearance of nasojugal groove in the skin and subcutaneous fat in the suborbital area. (D) Appearance of TTD due to contraction of the orbital part of the orbicularis oculi muscle or squinting. (E) Appearance of TTD due to herniation of intraorbital fat. (F) Appearance of infraorbital hollowness through malar bone resorption with soft tissue atrophy.