• Archives of Reconstructive Microsurgery
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• 제24권1호
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• pp.37-39
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• 2015

Epidermal inclusion cyst is a common mass in life. It is covered with a stratified squamous epithelium, thus, there is a granular cell layer adjacent to the keratin-containing cyst lumen. It can be caused by mechanical force, trauma, or a spontaneous event. It can rupture spontaneously or be ruptured by external mechanical forces. Epidermal inclusion cysts that exhibit inflammation or recur should be removed by simple excision. In this case, the patient showed an epidermal inclusion cyst under an anterolateral thigh free flap, which can cause the palpable mass to go unnoticed. First we thought he had neuroma formation after a surgical procedure on his foot. However it was an epidermal inclusion cyst, which was diagnosed by a special pathologist. It is a curious and rare case.

• 대한두개안면성형외과학회지
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• 제24권4호
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• pp.193-197
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• 2023

An epidermal cyst, also known as an epidermoid cyst or epidermal inclusion cyst, is the most prevalent type of cutaneous cyst. This non-cancerous lesion can appear anywhere on the body, typically presenting as an asymptomatic dermal nodule with a visible central punctum. In the case presented herein, an epidermal cyst with uncommon features was misdiagnosed as a lymphatic malformation based on preoperative magnetic resonance imaging (MRI). A 61-year-old man came to us with a swollen left cheek that had been present for 11 months. The preoperative MRI revealed a 3×3.8×4.6 cm lobulated cystic lesion with thin rim enhancement in the left masticator space. The initial differential diagnosis pointed toward a lymphatic malformation. We proceeded with surgical excision of the lesion via an intraoral approach, and the specimen was sent to the pathology department. The pathological diagnosis revealed a ruptured epidermal cyst, indicating that the initial diagnosis of a lymphatic malformation based on preoperative MRI was incorrect. Epidermal cysts located under the muscle with no visible central punctum are uncommon, but should be considered if a patient presents with facial swelling.

• 대한영상의학회지
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• 제84권3호
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• pp.776-781
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• 2023

표피낭종은 중층 편평상피로 구성되어 있는 진피층에서 흔하게 발생하는 양성질환으로, 유방을 포함한 신체 모든 부위에서 발생할 수 있다. 유방에서의 표피낭종은 임상에서 흔하게 볼 수 있으나, 임상적인 중요성이 떨어져 보고된 바가 적고, 표피낭종의 악성변형은 발생 빈도가 0.011%-0.045% 정도로 매우 드물다. 저자들은 침윤성 유관암의 과거력이 있는 환자에게서 발생한 유방의 표피낭종에서 기원한 편평세포암종에 대한 증례를 보고하고자 한다.

• Archives of Plastic Surgery
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• 제34권6호
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• pp.803-806
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• 2007

Purpose: The epidermal cyst is a very common skin lesion which usually occurs in the hairy regions. They are generally small but rarely reach more than 5 cm in diameter. We present a patient with a giant epidermal cyst on buttock area. Methods: A 50-year-old man with a slowly enlarging, huge mass in his left buttock was examined. There was no history of trauma in this area. Physical examination revealed a soft, nontender, $15{\times}15cm$-sized mass in his left buttock. T1-weighted magnetic resonance images demonstrated a well-circumscribed, multilocular cystic lesion with homogeneous, slightly high signal intensity. On T2-weighted images the lesion had wide areas of high signal intensity. The mass was totally excised. Results: A histopathological finding revealed that the cystic wall was lined with whole layers of stratified squamous epithelium. Keratin layers from the surface of the epithelium were seen to be sloughing into the cystic lumen. Multinucleted giant cells were found outside the cystic wall. Conclusion: Herein we report a rare case of giant epidermal cyst occurring on the buttock.

• Archives of Plastic Surgery
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• 제43권2호
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• pp.216-218
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• 2016

• 대한두개안면성형외과학회지
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• 제21권6호
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• pp.368-371
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• 2020

Schwannoma, also known as neurilemmoma, is a tumor of the nerve sheath, which most often occurs in the peripheral nerves of the extremities. Schwannoma can be accompanied by symptoms such as pain, paresthesia, and Tinel sign; however, patients can also be asymptomatic. Here, we present the case of a 17-year-old woman who presented with a slowly growing, asymptomatic, postauricular mass that appeared 10 years prior. Ultrasonography was performed, and the mass was thought to be an epidermal inclusion cyst. However, the clinical manifestation during surgery was not correlated to an epidermal inclusion cyst, leading to the suspicion of schwannoma from the posterior branch of the great auricular nerve. After a meticulous dissection, schwannoma was diagnosed based on a permanent section biopsy. Postoperative complications and recurrence were not observed. Schwannoma in the peripheral nerve area of the face is rare. Therefore, an investigation of tumors that occur where the nerve passes using imaging and clinical features is necessary to confirm the diagnosis of schwannoma and to establish suitable treatment methods.

• Archives of Plastic Surgery
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• 제43권1호
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• pp.112-114
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• 2016

• 대한족부족관절학회지
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• 제6권2호
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• pp.144-148
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• 2002

Purpose: To evaluate clinical characteristics of soft-tissue masses around the foot Materials and Methods: Sixty seven cases of soft tissue masses around the foot, excised at Kang Dong Sacred Heart hospital from Jan. 1987 to Oct. 2000, were included in the study. The age and sex of the patient, location and size of the lesion, history of trauma, presence or absence of pain and neurological symptoms as wellas final pathological diagnosis were obtained from retrospective analysis. Results: For type of lesion, all lesions were benign. Ganglion was 23 cases, epidermal inclusion cyst was 10 cases, lipoma was 8 cases, hemangioma was 5 cases and fibroma was 4 cases. For age, 63 percent of the patients were either between the ages of twenty and thirty nine or between the ages of fifty and fifty nine. For sex, the male-to-female ratio was 1 to 1.4. For zones of the foot, 18 cases were in Zone 1, 17 in Zone 4, 12 in Zone 2, 12 in Zone 3 and 8 in Zone 5. For clinical finding, 18 cases had pain. Conclusion: Ganglion was the most common lesions, followed in order of frequency by epidermal inclusion cyst, lipoma, hemangioma and fibroma. Lesions occurred frequently at Edward and Michael Zone 1, 4 and pain was the most common symptom.

• 대한정형외과 초음파학회지
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• 제4권2호
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• pp.59-65
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• 2011

목적: 신체 검사 및 초음파 검사를 통한 연부조직 종괴의 진단과 수술 후 조직검사를 통한 결과를 상호 비교, 분석하고 초음파 검사의 임상적 유용성에 대하여 고찰하였다. 대상 및 방법: 본원에서 연부조직 종괴에 대해 수술 전 초음파 검사를 시행하였고, 조직학적 생검을 통한 병리학적 검사로 확진을 받은 총 83명의 환자를 대상으로 한 후향적 검사를 시행하였다. 병력 청취와 신체 검사를 바탕으로 한 임상적 진단과 초음파 검사를 이용한 진단의 정확도를 조직학적 생검을 통한 확진을 바탕으로 상호 비교하였다. 결과: 초음파를 이용한 수술 전 진단의 정확도는 86.7%로 신체 검사만을 통한 진단에 비해 높은 정확도를 보였다. 초음파 검사의 경우 표피성 봉입낭종(epidermal inclusion cyst)인 경우 71.4%, 결절종은 85.7%, 지방종은 88.6%의 정확도를 각각 나타내었다. 반면 신체 검사와 병력 청취를 통하여 임상적 진단이 가능했던 경우는 총 54례로, 이 중 33례에서 병리적 진단과 일치하여 61.1%의 민감도를 보였다. 이 경우 종양별 진단 정확도는 결절종이 56.0%, 지방종이 67.9%로 나타났다. 결론: 초음파는 수술 전 연부조직 종괴의 진단에 있어 매우 유용한 진단 수단의 하나로 사료된다.

• Archives of Plastic Surgery
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• 제38권3호
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• pp.319-322
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• 2011

Purpose: Glomus tumor is a benign neoplasm of the normal glomus body, occurring as painful subcutaneous nodules, frequently located in the subungual area. There are few cases of facial glomus tumor reported and we report a case of glomus tumor developing on the columella of nose. Methods: A 68-year-old female presented with a mass of the columella grown for 2 years. The nodule was 0.6 cm in diameter, red-colored without any symptoms such as pain, tenderness and cold hypersensitivity. The pathologic result after punch biopsy was hemangiopericytoma. Excision with local anesthesia was executed. Results: The postoperative recovery of the patient was uneventful, Histopathological examination indicated a glomus tumor. Immunostaining revealed positivity for vimentin, actin, and negativity for desmin, CD-34. After 8 months follow up, there is neither complication nor evidence of local recurrence on clinical examination. Conclusion: To accomplish an accurate diagnosis of glomus tumor, the histopathological examination is essential together with immunochemical studies. The differential diagnosis include hemangioma, lipoma, epidermal inclusion cyst, dermoid cyst and arteriovenous malformation in this region. We report a case of glomus tumor on the face with uncommon clinical features.