• 대한두경부종양학회지
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• 제35권1호
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• pp.41-44
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• 2019

Intraductal papilloma is an extremely rare benign tumor especially when it arises from major salivary gland. Recently, we experienced a case of an intraductal papilloma arising from the parotid gland in a 51-year-old woman. The radiologic finding showed lobulated enhancing and cystic solid mass in the left parotid superficial lobe. Superficial parotidectomy was performed. Pathological findings showed papillary proliferations with fibrovascular cores lined with bland cuboidal or columnar epithelial cells, and immunohistochemical stain results were consistent with intraductal papilloma. We report a case of intraductal papilloma in parotid gland with a review of literature.

• 대한영상의학회지
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• 제81권1호
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• pp.197-202
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• 2020

간에 발생하는 자궁외 선근종은 매우 드문 종양이다. 이제껏 몇 가지의 사례만이 문헌에 보고되었고, 이것들은 조직병리학 소견에 초점을 둔 보고들이었다. 우리는 처음에 간선종으로 오인되었던, 상복부 통증을 주소로 내원한 43세 여성에서의 간에 발생한 자궁외 선근종의 특징적인 영상 소견을 보고하고자 한다. 이것은 전산화단층촬영과 자기공명영상에서 국소적 출혈을 동반한 고형 및 낭성 종괴로 보이며 간우엽 피막하에 위치하였고, 지속적인 약한 조영 증강을 보였다.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제50권2호
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• pp.110-115
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• 2024

A 22-year-old male patient presented to the clinic with severe pain in the preauricular area with an inability to completely occlude the jaw. Facial computed tomography and magnetic resonance imaging revealed a well-defined lesion that was tentatively diagnosed as a benign tumor or cystic mass. Surgical approach of a lesion in the condyle is delicate and problematic as many vulnerable anatomical structures are present. There are several methods for surgery in this area. Typically, an extraoral approach is dangerous because of potential injuries to nerves and arteries. The intraoral approach also presents difficulties due to the lack of visibility and accessibility. On occasion, coronoidectomy may be performed. The goal here was to determine an easier and safer new surgical approach to the condyle. We reached the anterior part of the pterygoid plate in the same method as in Le Fort I surgery. From this point, through the external pterygoid muscle, approaching the anterior aspect of the condyle is relatively easy and safe, with minimal damage to the surrounding tissues. Pus was drained at the site, and the lesion was diagnosed as an abscess. Pain and inability to close the mouth resolved without recurrence.

• Radiation Oncology Journal
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• 제11권1호
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• pp.59-67
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• 1993

1979년 12월부터 1989년 9월까지 서울대학병원 치료방사선과에서 두개인두종으로 수술 및 수술후 방사선치료를 시행받은 23명의 환자에 대해 적정 치료원칙을 제시하기 위하여 후향적 분석조사를 시행하였다. 모든 환자에서 근치적 수술을 시도하였으나 수술후 전산화단층촬영 소견상 종양이 남아있는 전절제군 8예 및 부분절제군 15예가 이분석에 포함되었다. 수술소견상 낭형 13예 ($57{\%}$), 고형 4예 ($17{\%}$), 혼합형이 6예 ($26{\%}$)로 나타났고 20세이하군에서는 낭형이 더 많은 수에서 나타났다. 5년 및 10년 생존율은 각각 $95{\%},\;81{\%}$를 보였고, 5년 및 10년 종양 조절율은 각각 $74{\%},\;51{\%}$였다. 수술정도에 따른 결과의 차이는 보이지 않았고 소아 및 청소년군에서 성인군보다 좀더 나은 결과를 보였으나 통계적으로 유의하지는 않았다. 두개인두종에 있어서 완전절제술이 시행되기 어려운 경우 부분절제술후 방사선치료가 유용한 것으로 사료된다.

• 대한골관절종양학회지
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• 제6권4호
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• pp.163-167
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• 2000

동맥류성 골낭종(aneurysmal bone cyst)은 비종양성 팽륜성 골 병변으로 정확한 병인은 밝혀지지 않았지만 반응성 현상으로 생각되며, 다른 골 병변과 동반되거나 원발성으로 발생한다. 동맥류성 골낭종은 주로 장골과 척추골에 발생하며, 늑골에서 발생하는 경우는 드물다. 저자들은 좌측 첫번째 늑골에서 발생하였으며, 연부조직 악성 종양으로 오인되었던 동맥류성 골낭종 1예를 경험하였기에 보고하는 바이다. 19세 여자 환자가 좌측 견갑부에서 촉진되는 종괴를 주소로 내원하였다. 방사선학적 검사상, 광범위한 연부조직 병소이며 낭성구조로 이루어진 불균일한 양상이었고, 인접한 좌측 첫번째 늑골의 부분적 골소실이 있어, 연부조직에서 발생한 악성 종양 의진하에 절제술을 시행하였다. 절제된 종괴의 육안 소견상, 종괴 변연부를 달걀 껍질같이 얇은 한층의 골조직이 싸고 있는 것이 관찰되어 늑골 기원의 병변이라는 것을 알 수 있었다. 광학 현미경 검사상, 종괴는 큰 동맥류성 공간으로 이루어져 있었고 혈액으로 차 있었다. 동맥류성 공간사이를 피복세포가 없이 섬유성 격이 나누고 있으면서 여기에는 파골세포와 유사한 다핵 거대세포, 단핵세포, 유골과 섬유점액성조직이 관찰되었다. 병리 소견에 따라 재검한 MRI에서, 늑골에서 종괴의 변연부로 이어지는 얇은 골구조가 관찰되어 늑골에서 발생한 동맥류성 골낭종이 연부조직 쪽으로 광범위하게 돌출해 나온 것임을 알 수 있었다.

• Clinical and Experimental Pediatrics
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• 제49권9호
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• pp.1000-1004
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• 2006

Atretic encephalocele은 1972년 James와 Lassmann에 의해 meningocele manque로 처음 보고 되었고 뇌류의 퇴행성 형태로 정의하였다. 이후로 atretic, occult, abortive, rudimentary cephalocele 등의 다양한 명칭으로 명명되었으며 포함된 조직, 동반 기형, 발생 위치, 배아성 직정맥동의 유무 등에 따른 차이점들에 대해 다양하게 보고 되어왔다. 두정엽의 후부에 낭성 종물을 주소로 입원한 환아의 진단 과정에서 두부 초음파, CT, MRI를 시행하였으며 그 과정에서 MRI가 진단에 가장 효과적인 영상을 제공하였다. 환아 진단 후 수술적 방법으로 종물을 제거하였으며 수술 중 이상 소견 및 추후 관찰 기간 동안 이상 소견관찰되지 않았다. Atretic encephalcele의 희귀함과 진단 방법의 장단점 및 위치상 특성과는 다르게 동반 기형 및 발달 장애가 관찰되지 않은 증례를 치험 하였기에 보고하는 바이다.

• Advances in pediatric surgery
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• 제17권2호
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• pp.162-169
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• 2011

Branchial cleft anomalies are the second most common head and neck congenital lesions seen in children. Amongst the branchial cleft malformations, second cleft lesions account for 95 % of the branchial anomalies. This article analyzes all the cases of second branchial cleft anomalies operated on at Seoul National University Hospital from September 1995 to February 2011. We analyzed sex, age, symptom and sign, accompanied anomaly, diagnosis, treatment, pathologic report and outcome via retrospective review of medical records. In this series, we had 61 patients (27 female and 34 male). The mean age at the time of operation was 38 months. 31 lesions were on the right, 20 were on the left and 10 were bilateral. The most frequent chief complaints at presentation were non-tender mass and cervical opening without any discharge. According to anatomic type, 29 patients had branchial cleft sinuses, 14 had cysts, 14 had fistulas and 4 had skin tags. Complete excision was attempted if possible and antibiotics challenged when infection was suspected. Complete excision was achieved in 96.7 % of cases. Incision and drainage was done in 2 cases due to severe inflammation, and both recurred. Postoperative complications included wound infection in 2 cases. Microscopic examonation revealed squamous epithelium in 90.2 % and squamous metaplasia in one case in the branchial cleft cyst wall. In summary, second branchial anomaly is found more frequently on right side of neck. Fistulas are diagnosed earlier than cystic forms. Most cases could be diagnosed by physical examination. The definitive treatment is complete excision and sufficient antibiotics coverage for cases with inflammation. After drainage of infected lesions, follow up excision after 1 year might be beneficial for preventing recurrence.

• Asian-Australasian Journal of Animal Sciences
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• 제20권1호
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• pp.31-35
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• 2007

The main purpose of this study was to improve the efficiency and quality of in vitro embryo production in Korean Native Cows (KNC). We examined the effects of ovarian morphologies (Experiment 1) and the culture vessel (Experiment 2) on in vitro maturation (IVM). We measured the subsequent development rates and cell numbers of blastocysts. In Experiment 1, the ovaries of KNC were divided into six groups, based on follicle and corpus luteum (CL) morphology. The development rates to the 2- and 8-cell stages were similar among the six groups. The development rates to blastocyst stages were significantly higher in the group without a CL or follicle (WOCL/F) than in the groups with follicular cysts (FCs), regressive CLs (RCLs) or cystic CLs (CCLs) (p<0.05). The cell number of the inner cell mass (ICM) of blastocysts in the FCs and RCLs groups, and the number of cells in the trophectoderm (TE) in the WOCL/F group, FCs, growing CLs (GCLs) and RCLs were significantly higher than in other groups (p<0.05). The total cell number (TCN) in the WOCL/F, FC and RCL groups was also significantly higher than in other groups (p<0.05). The ICM cell number/TCN ratio was significantly higher in the FC and RCL groups than in the GCL and DF groups (p<0.05). In Experiment 2, oocyte IVM was carried out in culture dishes, in 0.25- or 0.5-ml straws used for freezing sperm. The development rate to the 2-cell stage was significantly higher in the 0.5-ml straw group than in the 0.25-ml straw group. The development rates to the blastocyst stage were similar in the dish and the two straw groups. There were no differences in the cell numbers of ICM, TE or TCN or ICM cell number/TCN ratios between groups.

• 대한두경부종양학회지
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• 제22권2호
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• pp.142-146
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• 2006

Background and Objectives : This study reports our clinicopathological experiences of major salivary gland tumors. Materials and Methods : This study included 302 patients with major salivary gland tumors who had got the diagnosis from January 1995 through December 2004. Medical records were reviewed retrospectively. Results : We found 244 benign and 58 malignant major salivary gland tumors. Among 267 parotid tumors, the most common benign parotid tumor was pleomorphic adenoma. Mucoepidermoid carcinoma, adenoid cystic carcinoma, and acinic cell carcinoma were three most common parotid malignancies. Among 33 submandibular gland tumors, 20 cases were benign and 13 were malignant. There were one benign and one malignant sublingual gland tumors. The duration of symptom of submandibular gland tumors was longer than that of parotid tumors. Most patients presented with asymptomatic mass. Seventy-one percent of salivary gland malignancies underwent postoperative radiation therapy. Five-year disease free survival rate of parotid malignant tumors seemed to be higher than that of submandibular one, although there was no statistical significance. Conclusion : Malignancy rate of each salivary gland followed old axiom that it is inversely related with the size of gland. Submandibular gland tumor tends to be delayed to reach diagnosis. Clinicians must be alert about this finding because submandibular gland tumors are known to have poorer prognosis than parotid tumors.

• Parasites, Hosts and Diseases
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• 제48권2호
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• pp.161-165
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• 2010

Echinococcus granulosus, an intestinal tapeworm of dogs and other canids, infects humans in its larval stage and causes human echinococcosis or hydatid disease. In the Republic of Korea, 31 parasite-proven human echinococcosis cases have been reported, most of which were imported from the Middle East. We recently examined a 61-year-old Korean man who had a large cystic mass in his liver. ELISA was negative for tissue parasitic infections, including echinococcosis, cysticercosis, paragonimiasis, and sparganosis. The patient underwent surgery to remove the cyst, and the resected cyst was processed histopathologically for microscopic examinations. In sectioned cyst tissue, necrotizing protoscolices with disintegrated hooklets of E. granulosus were found. In some areas, only freed, fragmented hooklets were detected. The patient had traveled to western and central Europe in 1996, and had no other history of overseas travel. We report our patient as a hepatic echinococcosis case which was probably imported from Europe.