PMC5532757_01
Case 1: A 60-year-old woman who received 1 ml of hyaluronic acid (Volbella , Allergan, Dublin, Ireland) injections on each cheek to improve wrinkles. (A). Day 16: warm and swollen cheeks with multiple painful indurations and collections. (B). Magnetic resonance imaging at day 20: diffuse infiltration of cutaneous and subcutaneous tissues with confluent subcutaneous collections in both cheeks, the largest measuring 35 x 11 x 11 mm in the left cheek. (C). At 6 months, the patient presented aesthetic sequelae with inflammatory induration on both cheeks improved after daily physiotherapy and intense pulsed light therapy once a week.
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F0001
Due to a worsening status with multiple palpable collections in both cheeks, the patient was hospitalised on day 16 (Figure 1(A)). Due to the occurrence of new collections, magnetic resonance imaging was performed and showed a diffuse infiltration of cutaneous and subcutaneous tissues with confluent subcutaneous collections in both cheeks (Figure 1(B)). At 6 months, the patient presented aesthetic sequelae (Figure 1(C)).
PMC5532757_02
MRI Case 2: From left to right: 12 x 8 mm collection at the right temporal region, one of 16 x 12 mm facing the left angle of the mandible, tree collections in the lower white lip (two of 7 mm and one of 13 x 9 mm), one collection at the chin (22 x 8 mm).
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F0002
Magnetic resonance imaging confirmed subcutaneous facial collections in different localisations (Figure 2).