Journal of Pathology and Translational Medicine

Jung Wook Yang

3 Articles

Insulin-like Growth Factor II mRNA-Binding Protein 3 Expression in Benign and Premalignant Lesions and Carcinomas of the Stomach.: Dae Hyun Song, Jung Wook Yang, Dong Chul Kim, Jong Sil Lee, Jeong Hee Lee, Sang Ho Jeong, Gyung Hyuck Ko; Korean J Pathol. 2011;45(4):379-385.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.4.379

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BACKGROUND
Recent studies have demonstrated that insulin-like growth factor II mRNA-binding protein 3 (IMP3) is expressed in malignant tumors of various organs but not in normal tissue. We investigated IMP3 expression in various benign lesions, premalignant lesions and carcinomas of the stomach.
METHODS
IMP3 immunohistochemical staining was performed on 24 benign gastric lesions, 24 gastric adenomas, and 322 gastric carcinomas.
RESULTS
IMP3 was not expressed in benign gastric lesions including adenomas with low-grade dysplasia, but was expressed in 17% of adenomas with high-grade dysplasia, and in 44% of carcinomas. As the carcinomas were in the advanced stage, they expressed IMP3 more frequently and strongly. Patients with IMP3-positive tumors had poorer survival than those with negative tumors.
CONCLUSIONS
IMP3 expression in gastric carcinoma may be related to tumor invasion and metastasis, and is an independent risk factor for poor prognosis.

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IMP3, a Promising Prognostic Marker in Clear Cell Renal Cell Carcinoma
Ji Young Park, Misun Choe, Yuna Kang, Sang Sook Lee
Korean Journal of Pathology.2014; 48(2): 108. CrossRef
Role of combination of insulin-like growth factor II messenger RNA-binding protein 3 and claudin-1 immunostaining in differentiation between endometrial endometrioid carcinoma and uterine serous carcinoma
Maha M. Shamloula, Dareen A. Mohamed, Ayman El-Dorf
Egyptian Journal of Pathology.2013; 33(2): 237. CrossRef

IMP3 Expression of the Cholangiocarcinoma in Cytology Specimen and Its Diagnostic Value.: Jung Wook Yang, Jong Sil Lee, Dong Chul Kim, Dae Hyun Song, Gyung Hyuck Ko, Jeong Hee Lee; Korean J Pathol. 2010;44(6):642-650.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.6.642

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Abstract PDF

BACKGROUND
Pathologists occasionally have difficulty in distinguishing cholangiocarcinoma from benign reactive cells on the biliary cytology. We estimated the diagnostic value of insulinlike growth factor II mRNA binding protein 3 (IMP3) on biliary cytology specimens.
METHODS
We selected 40 patients who had undergone a biliary cytology examination and whose diagnoses were confirmed by biopsy. The IMP3 expression was evaluated by immunohistochemical staining in both the tissue and the cytology specimens. Their histologic diagnoses were cholangiocarcinoma (n = 34), high grade dysplasia (n = 2), low grade dysplasia (n = 1) and non-biliary tumor or no tumor (n = 3).
RESULTS
On the histology, all the cases of cholangiocarcinoma or high grade dysplasia were positive for IMP3 (36/36). The low grade dysplasia or the normal bile ducts in the other 4 cases were negative for IMP3 (0/4). Of the 36 cases diagnosed as cholangiocarcinoma or high grade dysplasia histologically, 29 cases were positive for IMP3 on the cytology (29/36; sensitivity, 80.6%). Of the 4 cases without cholangiocarcinoma or high grade dysplasia, 1 case was weakly positive for IMP3 on the cytology. The histologic diagnosis of this case was hepatocellular carcinoma. Except for this hepatocellular carcinoma case, the specificity of IMP3 on the cytology was 100%.
CONCLUSIONS
IMP3 is a useful diagnostic marker for cholangiocarcinoma on cytology.

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Insulin-like Growth Factor II mRNA-Binding Protein 3 Expression in Benign and Premalignant Lesions and Carcinomas of the Stomach
Dae Hyun Song, Jung Wook Yang, Dong Chul Kim, Jong Sil Lee, Jeong Hee Lee, Sang Ho Jeong, Gyung Hyuck Ko
The Korean Journal of Pathology.2011; 45(4): 379. CrossRef

A Well-Differentiated Extraskeletal Osteosarcoma: A Case Report.: Jung Wook Yang, Dae Hyun Song, Dong Hee Kim, Gyung Hyuck Ko; Korean J Pathol. 2008;42(4):247-250.

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Abstract PDF: A well-differentiated extraskeletal osteosarcoma is very rare, and only seven cases have been reported in the English language clinical literature. We report an additional case of this rare tumor. A 71-year-old man had noticed a mass in the left pubic area for ten years. A CT scan demonstrated the presence of a lobulated calcified mass within the soft tissue. A 5 cm-sized well-circumscribed mass was excised. Histologically the tumor was composed of mature collagenous tissue and bony trabeculae rimmed by osteoblasts. After 43 months, the tumor recurred at the same site and was re-excised. The re-excised tumor contained focal areas of higher cellularity and atypism. We believe that this is the first case of well-differentiated extraskeletal osteosarcoma reported in Korea.

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