Depressed scar - Depressus Cicatrice Orta Est

Depressus cicatrix orta est (Depressed scar) sub summa cute sedet et demersa vel foveata speciem habet. Acne communis est causa fovendi cicatricis.

Curatio
#Ice pick scar - TCA peeling (CROSS technique)
#Rolling scar - Laser resurfacing by Erbium laser or fractional laser
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      References Methods for the Improvement of Acne Scars Used in Dermatology and Cosmetology: A Review 35628870 
      NIH
      Acne vulgaris est morbus cutis, qui diuturno tempore diversas formas pustularum, ut in capite nigro et anulis, producere potest. Si non recte curatur, cicatrices relinquere potest. Haec recensio varias cicatrices acne et modos emendandi investigat. Tria principalia genera cicatricum: icepick, rolling, boxcar scars, quae in profundo et specie variantur. Multae curationes efficaces praesto sunt, inter lasers, radiofrequency, micro‑needling, chemical peels.
      Acne vulgaris is a chronic skin disease that, depending on its course, is characterized by the occurrence of various skin eruptions such as open and closed comedones, pustules, papules, and cysts. Incorrectly selected treatment or the presence of severe acne vulgaris can lead to the formation of atrophic scars. In this review, we summarize current knowledge on acne scars and methods for their improvement. There are three types of atrophic scars: icepick, rolling, and boxcar. They are of different depths and widths and have different cross-sections. Scars can combine to form clusters. If acne scars are located on the face, they can reduce the patient's quality of life, leading to isolation and depression. There are multiple effective modalities to treat acne scars. Ablative lasers, radiofrequency, micro-needling, and pilings with trichloroacetic acid have very good treatment results.
       A systematic review and meta-analysis on the effects of the ultra-pulse CO2 fractional laser in the treatment of depressed acne scars 35249351
      Hoc studium VI chartarum examinavit quomodo laser CO₂ fractus ultra‑pulsus cicatrices depressas acne tractet. Eventus ostendit hanc curationem laseris efficaciorem esse quam alios modos comparatos, ducens ad meliores eventus secundum emendationes ratum et cutis aegrorum lenitatem.
      This study examined 6 papers about how well the ultra-pulse CO2 fractional laser treats depressed acne scars. The results showed that this laser treatment was more effective compared to other methods, leading to better outcomes in terms of improvement rates and how smooth patients' skin felt.