• Archives of Plastic Surgery
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• 제36권4호
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• pp.500-502
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• 2009

Purpose: Cutaneous lipomatous neurofibroma is a rare variant of neurofibroma. Histologically, it includes adipose tissue. As far as we aware, only 11 cases of this variant were reported which was predominantly on head, neck and trunk, so we present a case of left pretibial area with literature review. Method: A 17 - year old female who showed a non - tender, protruding $4{\times}4{\times}2cm$ sized mass on the left pretibial area for several months. We totally excised the mass including skin and the subcutaneous fat layer. Results: Pathologic report showed cutaneous lipomatous neurofibroma which was well circumscribed and noncapsulated neoplasm present with focal fatty change. Adipose cells were entrapped in the whirls of spindle cells. There were no lipoblasts or atypical adipocytes. Conclusion: A cutaneous lipomatous neurofibroma on the lower extremity is very rare. In our patient, there were no trauma - related histopathologic changes. Therefore, focal fatty change can be a consequence of metaplasia from multipotential neural cells after migration.

• 대한골관절종양학회지
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• 제14권2호
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• pp.131-139
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• 2008

목적: 지방종성 종양은 수부에서 발생하는 경우는 드문 것으로 알려져 있다. 저자들은 수부에 발생한 지방종성 종양 11예를 수술적으로 치료하였기에 그 임상적 특성을 보고하고자 한다. 대상 및 방법: 1992년부터 2008년까지 수부종양으로 수술받았던 환자 중 조직학적으로 지방종성 종양으로 진단받은 환자를 선별하였으며 후향적으로 그 특성을 조사하였다. 의무기록 및 방사선학적 검사 그리고 수술전후 사진기록을 조사하였다. 재발여부는 전화면담을 통해 확인하였다. 결과: 11예 중 8예가 지방종이었으며 비전형 지방종(atypical lipoma)가 1예, 조갑하 혈관 지방종(subungal angiolipoma)가 1예, 섬유지방종(fibrolipoma)이 1예이었다. 발생부위로 수지에 발생한 경우가 4예이었으며 무지구근부 2예, 소지구근부 2예, 수장부 1예, 손목 2예이었다. 전례에서 수장부에 발생하였다. 증상으로 대부분 종물감을 호소하였으며, 통증이 동반된 경우는 2예, 감각이상을 호소한 경우가 1예 있었다. 통증이 있었던 2예 중 1예는 조갑하 혈관지방종이었고 1예는 수장부에 발생한 단순 지방종이었다. 비전형 지방종은 2 cm 가량의 주위조직을 포함한 광범위 절제를 시행하였고, 나머지 10예에서는 단순 절제를 시행하였다. 술 후 합병증으로 지방종의 크기가 5 cm이상으로 수술 후 수술부의 원위부에 감각저하 및 수술 절개부에 과감각을 호소하는 경우가 1예 있었고 기타 다른 합병증은 없었다. 전화면담이 가능했던 10예 중 재발은 없었다. 결론: 수부에 발생하는 지방종성 종양은 대개 종물감외에는 증상이 없으나 드물게 통증이 나타나는 경우가 있었다. 육안 소견은 비슷하나 조직의 성상은 다양하였다. 수술을 할 경우 합병증의 위험은 적으나 종괴가 클 경우 수술 중 신경손상의 위험이 있으므로 세심한 수술을 해야 할 것으로 사료된다.

• Advances in pediatric surgery
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• 제9권2호
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• pp.89-93
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• 2003

A lipomatous lesion of the cord is an accidentally encountered structure during the operative repair of inguinal hernia. This lesion has been reported as a lipoma of the cord in adults. However, there is only a limited number of reports in the pediatric age group. To evaluate the prevalence of this lesion in children and in order to review the surgical signiticancies, 600 hernia operations in 411 children during a period of 4 years from January, 2000 to December, 2003 in the Division of Pediatric Surgery, Department of Surgery, the Catholic University of Korea, were included in this study. There was a total of 31 (5.2 %) lipomatous lesions in 25 (6.1 %) cases; 3 cases in infants, 17 between 1 to 4 years, and 5 above 5 years of age. Male was more prevalent (male to female ratio 14:11). The laterality of clinical hernia with the lesions was 10 in the right, 13 in the left and 2 in both sides. The patients with ipsilateral lesions to the hernia were 14, contralateral in 5 and bilateral in 6 cases. Excluding 1 case of bilateral lesions in bilateral hernia, 10 lesions were contralateral to the clinical hernias. In 1 case, lipomatous lesion was the sole finding with nonsignificant patent processus vaginalis. Every lesion was suture ligated and resected with gentle traction of the dissected hernia sac. It has not been clearly defined whether the lesion is a stopper or a provocator of the hernia development. However, removal is highly recommended to make a differential diagnosis from the recurrent inguinal hernia in future. The term "lipomatous lesion" seems to be pathologically accurate and must be differentiate from the true lipomas.

• 임상이비인후과
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• 제29권2호
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• pp.286-289
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• 2018

Liposarcoma is a malignant tumor that occurs in adipocytes, accounting for 5% of all sarcomas. Generally, it has no symptoms and it occurs in any parts of the body. There are various types of liposarcoma. Of these, 40-45% are known as highly differentiated liposarcoma, and highly differentiated liposarcoma is also referred to as atypical lipomatous tumor. We report a case of an atypical lipomatous tumor on the left neck.

• Imaging Science in Dentistry
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• 제42권3호
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• pp.191-195
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• 2012

A case of hemifacial hyperplasia that presented with muscular, skeletal, and dental hyperplasia along with lipomatous infiltration was described. Advanced imaging was useful in identifying the lipomatous infiltration present in the lesion, which raises the possibility of lipomatosis having a diverse presentation in hemifacial hyperplasia. As there was a scarcity of related literature in the field of dentomaxillofacial radiology, this report would make us familiar with its computed tomographic and magnetic resonance image findings.

• Journal of Korean Neurosurgical Society
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• 제63권5호
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• pp.657-663
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• 2020

Objective : Metaplastic meningioma is an extremely rare subtype of World Health Organization (WHO) grade I meningioma. It has distinctive histological subtypes according to its own mesenchymal components. Owing to its scarcity, clinical or radiological features of a metaplastic meningioma are poorly described. Methods : Between 2004 and 2018, we analyzed total 1814 cases surgically proven meningioma for 15 years. Among them, metaplastic meningioma was diagnosed in 11 cases. Magnetic resonance images were taken for all patients, and computed tomography scan was taken for 10 patients. Results : WHO grade I meningiomas were 1376 cases (75.9%), 354 cases (19.5%) in WHO grade II, and 84 cases (4.6%) in WHO grade III meningiomas. Metaplastic meningioma was 11 cases as 0.8% of WHO grade I meningioma and 0.6% of entire meningiomas for 15 years. Among the entire 11 metaplastic meningiomas, five tumors (45%) were diagnosed as a lipomatous subtype with rich fat components, four (36%) as an osseous subtype with extensive bone formation and two (18%) as a xanthomatous subtype. There was no cartilaginous subtype metaplastic meningioma in our study. Lipomatous and osseous metaplastic meningioma have peculiar radiological characteristics according to mesenchymal components. Conclusion : We investigated a rare metaplastic meningioma subtype based on our 15-year surgical experience with meningiomas. Further investigation will be necessary for the clear clarification of tumor nature of this rare tumor.

• 대한두경부종양학회지
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• 제26권2호
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• pp.256-258
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• 2010

Although liposarcoma is the second most common soft tissue sarcoma in adults, the incidence of liposarcoma in the head and neck is low. The histologic nature of liposarcoma is correlated clinically with treatment outcome, but histologic classification of liposarcoma is controversial. Well-differentiated liposarcoma and atypical lipoma are pathologic synonyms because they are identical lesions both morphologically and karyotypically. They represent the lowest grade lesions in the spectrum of liposarcoma. The terms "atypical lipoma" were introduced specifically to describe well-differentiated liposarcomas occurring in the extremities, because of their better prognosis in comparison with their retroperitoneal counterparts. We present 1 case of atypical lipomatous tumor of the neck.

• 한국임상수의학회지
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• 제38권4호
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• pp.174-178
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• 2021

A nine-year-old neutered male cat was presented with chronic cough and vomiting. Thoracic radiography showed regions of fatty opacity in the right caudoventral region. On positive contrast celiography, contrast agent did not move into thoracic cavity. Computed tomography revealed 7-mm diameter of defect at the right diaphragmatic crus and a 2-mm diameter defect at the left ventral diaphragmatic crus. Through the right diaphragmatic defect omental herniation was confirmed by the presence of contrast enhanced omental vessel running across the diaphragm. On exploratory thoracotomy, the omentum protruded into the thorax through the right diaphragmatic defect, and it contained a yellowish lipomatous mass. The protruded omentum containing a mass in the thorax was removed, and the right diaphragmatic defect was closed. Histopathologic examination revealed that the protruded omentum showed normal omental structure and the adipose mass showed lipoma surrounded by fibrous tissue. In conclusion, a thorough examination is necessary to confirm the origin of the mass located near the diaphragm.

• Tuberculosis and Respiratory Diseases
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• 제70권6호
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• pp.511-515
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• 2011

The fat-forming variant of solitary fibrous tumors (SFTs) is a rare soft tissue neoplasm that was previously referred to as a lipomatous hemangiopericytoma (L-HPC). The most common affected site is deep soft tissue. Here, we present the first case, worldwide, of a fat-forming variant of SFT of the pleura. A 74-year-old man presented with left lower chest pain. Chest radiographs showed a mass-like lesion at the left lower lung field and chest computed tomography revealed a 12 cm fat-containing enhancing mass that was well-separated, lobulated and inhomogeneous. Radiology findings suggested a liposarcoma. Percutaneous needle biopsy was performed and pathological diagnosis of the mass was a fat-forming variant of SFT. Surgical resection was carried out and there has been no recurrence to date. So, a benign fat-forming variant of SFT must be considered as one of the differential diagnoses of lipomatous tumors of the pleura.

• Journal of Chest Surgery
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• 제36권11호
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• pp.870-873
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• 2003

과오종은 가장 흔히 보는 폐의 양성종양이나 기관지 내에 발생하는 경우는 드물다. 더욱이 지방종성인 경우는 매우 드물다. 73세 남자에게 한 달 전부터 객혈이 발생되어 입원하였다. 기관지경 검사에서 우상엽기관지를 막고 있는 돌출된 종괴가 발견되었다. 수술 중 얻은 동결 조직에서 양성으로 진단되어 기관지절개만으로 종양을 제거하였다. 저자들은 기관지절개만으로 제거된 지방종성 기관지내 과오종을 경험하여 보고하는 바이다.