• Neonatal Medicine
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• 제17권1호
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• pp.147-151
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• 2010

신생아에서 선천성 거대 멜라닌세포 모반은 드물게 발생하지만 악성 흑색종, 연수막멜라닌세포증, 간질과 같은 신경학적 결함의 발생 위험성이 높은 질환으로서 수술적 절제 및 장기적 추적관찰을 필요로 한다. 저자들은 출생시 부터 흉부의 선천성 거대 멜라닌세포 모반과 두경부 및 사지의 위성모반을 보인 여아 1례를 경험하였기에 문헌고찰과 함께 보고하는 바이다.

• Archives of Plastic Surgery
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• 제37권6호
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• pp.763-768
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• 2010

Purpose: Reconstruction of soft tissue defect using tissue expander can provide better flap which is more similar to surrounding tissue in color, skin texture and hair compared to other methods. Many pediatric patients need reconstruction of soft tissue defect because of giant congenital nevi, congenital or acquired malformations and burn scars. Reconstruction using tissue expander is adequate to minimize dysmorphism in these patients. We intended to assess outcomes of using tissue expander in pediatric patients by retrospective study. Methods: Total cases were 168 of pediatric patients who received soft tissue reconstruction using tissue expander by the same surgeon from February, 1982 to May, 2009. All patients who received soft tissue reconstruction were under 10 years old. Mean age was 4.3 years old, the youngest 13 months, the oldest 8 years. Eightynine cases were male and 79 cases were female. Most common cause was giant hairy nevi (67 cases, 39.9%), secondary cause was burn scar/scar contracture (61 cases, 36.3%). Trunk (38 cases, 22.6%) was most common anatomical location. Results: Soft tissue defects were successfully covered using tissue expander in 149 cases (88.7%) without major complications. There was infection on 8 cases (4.7%) and we treated by adequate antibiotics in these cases. There were tissue expander folding or valve displacement on 5 cases (3%). Conclusion: Usage of tissue expander is useful on pediatric patients because tissue expansion is rapid on children and there are less secondary contractures on operation site than full thickness skin graft. Because of psychological stress due to tissue expander, operation should be performed before school age.

• Archives of Plastic Surgery
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• 제44권6호
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• pp.523-529
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• 2017

Background Serial tissue expansion is performed to remove giant congenital melanocytic nevi. However, there have been no studies comparing the expansion rate between the subsequent and preceding expansions. In this study, we analyzed the rate of expansion in accordance with the number of surgeries, expander location, expander size, and sex. Methods A retrospective analysis was performed in pediatric patients who underwent tissue expansion for giant congenital melanocytic nevi. We tested four factors that may influence the expansion rate: The number of surgeries, expander location, expander size, and sex. The rate of expansion was calculated by dividing the 'inflation amount' by the 'expander size'. Results The expansion rate, compared with the first-time group, was 1.25 times higher in the second-or-more group (P=0.04) and 1.84 times higher in the third-or-more group (P<0.01). The expansion rate was higher at the trunk than at other sites (P<0.01). There was a tendency of lower expansion rate for larger expanders (P=0.03). Sex did not affect the expansion rate. Conclusions There was a positive correlation between the number of surgeries and the expansion rate, a positive correlation between the expander location and the expansion rate, and a negative correlation between the expander size and the expansion rate.

• Clinical and Experimental Pediatrics
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• 제49권2호
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• pp.212-216
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• 2006

신경피부멜라닌증은 피부와 중추신경계를 침범하는 드문 선천성 증후군으로 연수막에 멜라닌증 또는 흑색종과 동반하여 피부에 거대 또는 다수의 색소성 모반이 존재하며, 피부에서 악성 변화의 증거가 없고, 뇌수막 외에 다른 부위에 악성 흑색종의 증거가 없는 경우로 정의된다. 발생기전은 배아신경 외배엽의 형태발생 착오로 생기는 것으로 알려져 있다. 저자들은 복부, 흉부와 팔 전체에 검은색 모반이 덮여있고, 전신에 다양한 크기의 위성병변이 출생시부터 존재한 신생아를 경험하였다. 뇌 자기공명영상은 오른쪽 측두엽의 편도에 결절모양의 고신호 강도를 보였고, 지방억제 T1 강조영상은 연수막 주위의 고신호 강도를 보였다. 저자들은 거대 선천성 색소성 모반을 가진 신생아에서 뇌자기공명영상으로 진단받고 3차례의 소파술과 인공피부이식술을 받은 드문 선천성 증후군인 신경피부멜라닌증 환자 1례를 경험하고 문헌 고찰과 함께 보고하는 바이다.

• Archives of Plastic Surgery
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• 제47권6호
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• pp.551-558
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• 2020

Background Giant congenital melanocytic nevus (GCMN) is a rare disease, for which complete surgical resection is recommended. However, the size of the lesions presents problems for the management of the condition. The most popular approach is to use a tissue expander; however, single-stage expansion in reconstructive surgery for GCMN cannot always address the entire defect. Few reports have compared tissue expansion techniques. The present study compared single and serial expansion to analyze the risk factors for complications and the surgical outcomes of the two techniques. Methods We retrospectively reviewed the medical charts of patients who underwent tissue expander reconstruction between March 2011 and July 2019. Serial expansion was indicated in cases of anatomically obvious defects after the first expansion, limited skin expansion with two more expander insertions, or capsular contracture after removal of the first expander. Results Fifty-five patients (88 cases) were analyzed, of whom 31 underwent serial expansion. The number of expanders inserted was higher in the serial-expansion group (P<0.001). The back and lower extremities were the most common locations for single and serial expansion, respectively (P =0.043). Multivariate analysis showed that sex (odds ratio [OR], 0.257; P=0.015), expander size (OR, 1.016; P=0.015), and inflation volume (OR, 0.987; P=0.015) were risk factors for complications. Conclusions Serial expansion is a good option for GCMN management. We demonstrated that large-sized expanders and large inflation volumes can lead to complications, and therefore require risk-reducing strategies. Nonetheless, serial expansion with proper management is appropriate for certain patients and can provide aesthetically satisfactory outcomes.