1.Liver Abscess Arising from Gallbladder Perforation with Gallbladder Cancer
Younghwan JANG ; Sae Hwan LEE ; Jeong Ah HWANG ; Hyein AHN
The Korean Journal of Gastroenterology 2020;75(1):56-59
No abstract available.
Gallbladder Neoplasms
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Gallbladder
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Liver Abscess
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Liver
2.Lymphoepithelioma-like Carcinoma of the Renal Pelvis: A Case Report and Review of the Literature.
Hyein AHN ; Jongmin SIM ; Hyunsung KIM ; Kijong YI ; Hulin HAN ; Yumin CHUNG ; Abdul REHMAN ; Seung Sam PAIK
Korean Journal of Pathology 2014;48(6):458-461
No abstract available.
Kidney Pelvis*
3.Osteosarcomatous Differentiation in Rebiopsy Specimens of Pulmonary Adenocarcinoma with EGFR-TKI Resistance
Hyein AHN ; Hyun Jung KWON ; Eunhyang PARK ; Hyojin KIM ; Jin Haeng CHUNG
Journal of Pathology and Translational Medicine 2018;52(2):130-132
No abstract available.
Adenocarcinoma
4.Scalp metastasis of advanced gastric cancer
Hyeong Rae RYU ; Da Woon LEE ; Hwan Jun CHOI ; Jun Hyuk KIM ; Hyein AHN
Archives of Craniofacial Surgery 2021;22(3):157-160
Head and neck cutaneous metastasis of advanced gastric cancer is uncommon, and scalp metastasis is particularly rare. We present the case of a 60-year-old man who was diagnosed with cutaneous metastasis on the scalp originating from advanced gastric cancer. The patient was referred to the plastic surgery department for a scalp mass near the hairline. He had been diagnosed with advanced gastric cancer and undergone total gastrectomy and Roux esophagojejunostomy 3 years previously. The differential diagnosis for a single flesh-colored nodule on the scalp included benign tumors such as epidermal cyst or lipoma; therefore, the patient underwent excision and biopsy. In the operative field, the mass was found to be located in the frontalis muscle. The biopsy result showed that the mass was a metastatic lesion of advanced gastric cancer. Whole-body computed tomography revealed a gastric tumor with blood vessel infiltration, peritoneal carcinomatosis, liver metastasis, and multiple disseminated subcutaneous metastases. Although scalp metastasis originating from an internal organ is extremely rare, plastic surgeons should always consider a metastatic lesion in the differential diagnosis if a patient with a scalp lesion has a history of malignant cancer.
5.Scalp metastasis of advanced gastric cancer
Hyeong Rae RYU ; Da Woon LEE ; Hwan Jun CHOI ; Jun Hyuk KIM ; Hyein AHN
Archives of Craniofacial Surgery 2021;22(3):157-160
Head and neck cutaneous metastasis of advanced gastric cancer is uncommon, and scalp metastasis is particularly rare. We present the case of a 60-year-old man who was diagnosed with cutaneous metastasis on the scalp originating from advanced gastric cancer. The patient was referred to the plastic surgery department for a scalp mass near the hairline. He had been diagnosed with advanced gastric cancer and undergone total gastrectomy and Roux esophagojejunostomy 3 years previously. The differential diagnosis for a single flesh-colored nodule on the scalp included benign tumors such as epidermal cyst or lipoma; therefore, the patient underwent excision and biopsy. In the operative field, the mass was found to be located in the frontalis muscle. The biopsy result showed that the mass was a metastatic lesion of advanced gastric cancer. Whole-body computed tomography revealed a gastric tumor with blood vessel infiltration, peritoneal carcinomatosis, liver metastasis, and multiple disseminated subcutaneous metastases. Although scalp metastasis originating from an internal organ is extremely rare, plastic surgeons should always consider a metastatic lesion in the differential diagnosis if a patient with a scalp lesion has a history of malignant cancer.
6.Excision of Calcinosis Cutis Caused by Moxibustion Burn Injury Using Intraoperative Ultrasonography Determining the Complete Resection Range
Hyeong Rae RYU ; Hwan Jun CHOI ; Jun Hyuk KIM ; Da Woon LEE ; Hyein AHN
Journal of Korean Burn Society 2021;24(2):34-37
A 46-year-old female presented a mass on her right lower leg where she had a burn injury due to moxibustion 10 years ago. Physical examination revealed a 3 cm sized firm nodule with tenderness. Plain radiograph was performed and it revealed well-defined calcifications. According to the history of moxibustion burn injury and the result of plain radiograph, dystrophic calcinosis cutis caused by burn injury was suspected. The patient underwent excisional biopsy using pre-,intra-, and postoperative ultrasonography (USG). There was no sign of recurrence. Herein, we report a case of a 46-year-old healthy woman who presented with single hard nodule on the right lower leg. Our case is worthwhile in two respects. First, It is first case report of dystrophic calcinosis cutis due to moxibustion burn injury. In east asian culture, moxibustion is a commonly conducted procedure and it often induces burn injury. Second, USG was used pre-, intra-, and post-operatively to assess the shape, location, and depth of the calcinosis cutis and to determine the surgical margin.
7.A Case Report of Male Occult Breast Cancer Manifested as Superior Vena Cava Syndrome
Hyein KANG ; Su Min HA ; Hye Shin AHN ; Hee Sung KIM ; Hee Jun KIM
Journal of the Korean Radiological Society 2018;79(4):204-207
Occult breast cancer (OBC) is an asymptomatic condition. We report a case of OBC in a 72-year-old male patient who presented with severe dyspnea and upper extremity swelling. Computed tomography scan showed multiple lymph node enlargements in the supraclavicular and infraclavicular areas, and ultrasound scan showed multiple axillary lymph node enlargements. Based on the radiological findings, clinicians suspected lymphoma or disseminated metastasis from unknown primary malignancies. However, the axillary biopsy specimen revealed invasive breast cancer with hormonal receptor positivity.
8.Isolated temporalis muscle metastasis of renal cell carcinoma
Da Woon LEE ; Hyeong Rae RYU ; Jun Hyuk KIM ; Hwan Jun CHOI ; Hyein AHN
Archives of Craniofacial Surgery 2021;22(1):66-70
Isolated head and neck metastasis of renal cell carcinoma (RCC) is relatively rare and metastasis to the temple area is very rare. Here, we present the case of a 51-year-old man who was diagnosed with RCC 2 years earlier and had a contralateral metastatic temple area lesion. The patient who was diagnosed with renal cell cancer and underwent a nephrectomy 2 years ago was referred to the plastic surgery department for a temple mass on the contralateral side. In the operative field, the mass was located in the temporalis muscle with a red-to-purple protruding shape. Biopsy of the mass revealed a metastatic RCC lesion. Computed tomography imaging showed a lobulated, contoured enhancing lesion. Positron emission tomography/computed tomography imaging showed high-fluorodeoxyglucose uptake in the right temporalis muscle. The patient underwent wide excision of the metastatic RCC including the temporalis muscle at the plastic surgery department. Skeletal muscle metastasis of head and neck lesions is extremely rare in RCC. Isolated contralateral temporalis muscle metastasis in RCC has not been previously reported in the literature. If a patient has a history of malignant cancer, plastic surgeons should always consider metastatic lesions of head and neck tumors. Because of its high metastatic ability and poor prognosis, it is very important to keep this case in mind.
9.Increased Expression of Forkhead Box M1 Is Associated with Aggressive Phenotype and Poor Prognosis in Estrogen Receptor-Positive Breast Cancer.
Hyein AHN ; Jongmin SIM ; Rehman ABDUL ; Min Sung CHUNG ; Seung Sam PAIK ; Young Ha OH ; Chan Kum PARK ; Kiseok JANG
Journal of Korean Medical Science 2015;30(4):390-397
Fox transcription factors play a critical role in the regulation of a variety of biological processes. While FoxM1 behaves like the oncogenic transcription factor, FoxO3a is known as a tumor suppressor by inhibiting FoxM1. This study aimed to investigate the clinicopathological significance of FoxM1 and FoxO3a expression in breast cancer. Expression of FoxM1 and FoxO3a were analyzed by immunohistochemical staining on tissue microarray sections from 236 breast cancer patients, and correlated with various clinicopathological characteristics. Overexpression of FoxM1 correlated with adverse clinicopathological features, such as larger tumor size, lymph node metastasis, advanced tumor stage, and lymphovascular invasion. The Kaplan-Meier survival curves revealed no prognostic significance of FoxM1 expression. However, in subgroup analyses with patients of estrogen receptor (ER) positive breast cancers, FoxM1 overexpression associated with poor disease free and overall survival. No association was found between FoxO3a and FoxM1 expression. Regarding clinicopathological variables, the only association between histologic grade and FoxO3a was observed. In conclusion, FoxM1 overexpression was significantly associated with aggressive phenotypes and poor prognosis of ER-positive breast cancer. These findings suggest the possible role of FoxM1 as a prognostic biomarker and putative target of anti-cancer therapy.
Breast Neoplasms/chemistry/mortality/*pathology
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Female
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Forkhead Transcription Factors/*analysis
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Humans
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Phenotype
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Prognosis
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Receptor, ErbB-2/analysis
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Receptors, Estrogen/*analysis
10.High MicroRNA-370 Expression Correlates with Tumor Progression and Poor Prognosis in Breast Cancer.
Jongmin SIM ; Hyein AHN ; Rehman ABDUL ; Hyunsung KIM ; Ki Jong YI ; Yu Min CHUNG ; Min Sung CHUNG ; Seung Sam PAIK ; Young Soo SONG ; Kiseok JANG
Journal of Breast Cancer 2015;18(4):323-328
PURPOSE: Deregulation of microRNA-370 (miR-370) has been reported in various cancers, in which it can act as either an oncogene or a tumor suppressor gene. However, the clinicopathologic significance of miR-370 expression in breast cancer has not been studied. METHODS: The expression of miR-370 was determined with quantitative real-time polymerase chain reaction in 60 formalin-fixed, paraffin-embedded primary breast cancer tissues. Additionally, the protein expression levels of previously known targets of miR-370, such as FOXM1, FOXO1, and FOXO3a, were detected using immunohistochemistry. Finally, we analyzed its correlation with target protein expression, clinicopathologic features, and clinical outcome. RESULTS: High levels of miR-370 expression correlated with lymph node metastasis (p=0.009), advanced stage (p=0.002), and frequent perineural invasion (p=0.042). Moreover, patients with high miR-370 expression had poor disease-free survival compared with the low-expression group. However, no correlation was observed between miR-370 and its target protein expression. CONCLUSION: Our results indicate that upregulation of miR-370 in breast cancer is correlated with breast cancer progression and that it might be a potential biomarker for predicting clinical outcomes.
Breast Neoplasms*
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Breast*
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Disease-Free Survival
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Genes, Tumor Suppressor
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Humans
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Immunohistochemistry
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Lymph Nodes
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Neoplasm Metastasis
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Oncogenes
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Prognosis*
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Real-Time Polymerase Chain Reaction
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Up-Regulation