Journal of Pathology and Translational Medicine

Kyueng Whan Min

9 Articles

CD44s and CD44v6 Are Predominantly Expressed in the Non-germinal Center B-Cell-like Type of Diffuse Large B-Cell Lymphomas.: Kyueng Whan Min, Young Ha Oh, Chan Kum Park, So Dug Lim, Wan Seop Kim; Korean J Pathol. 2011;45(6):589-595.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.6.589

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Abstract PDF: BACKGROUND
CD44 protein is known as a homing cellular adhesion molecule that is linked to diverse cellular functions such as adhesion, migration and invasion, which are all important in cancer progression and metastasis. The expression of CD44 standard and variant isoforms (CD44 standard isoform [CD44s] and CD44 splice variants containing exon v6 [CD44v6], respectively) is associated with an unfavorable clinical outcome in various neoplasms.
METHODS
Forty patients who were diagnosed with diffuse large B-cell lymphoma (DLBCL) through biopsy at Hanyang University Hospital between 1996 and 2003 were included in this study. CD44 proteins expression was analyzed by immunohistochemical staining on a tissue microarray and the correlation of CD44 with the types of DLBCL and clinical parameters, including the factors defined by the International Prognostic Index, was evaluated.
RESULTS
A high CD44s and intermediate to strong CD44v6 expression, including cytoplasmic membranous staining patterns, was present in 35% (14/40) and 25% (10/40) of DLBCL patients, respectively. High CD44s expression was correlated significantly with non-germinal center B-cell-like types (non-GCB, p=0.004) and patients with old age (p=0.041).
CONCLUSIONS
High CD44s expression may be significantly associated with the non-GCB type compared to the GCB type and may be essential to the prediction of disease outcome in tumor stage III in DLBCL patients.

A Case of Gastric Carcinosarcoma with Neuroendocrine and Smooth Muscle Differentiation.: Se Min Jang, Si Hyong Jang, Kyueng Whan Min, Woong Na, Young Jin Jun, Seung Sam Paik; Korean J Pathol. 2010;44(1):87-91.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.1.87

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Carcinosarcoma of the stomach is a rarely occurring malignant biphasic tumor that consists of both carcinomatous and sarcomatous components simultaneously in a single tumor. The common carcinoma component is tubular or papillary adenocarcinoma and the mesenchymal sarcomatous components are variable and these include leiomyosarcoma, rhabdomyosarcoma, osteosarcoma and chondrosarcoma. However, neuroendocrine carcinomatous differentiation in the carcinomatous component is extremely rare. We present here a rare gastric carcinosarcoma that demonstrated neuroendocrine carcinomatous and leiomyosarcomatous differentiation in a 47-year-old man.

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Asymptomatic giant gastric carcinosarcoma
Hitesh Sarda, Anshuman Pandey, Abhishek Gatuam, Hareesh Shanthappa Nellikoppad
BMJ Case Reports.2023; 16(10): e255680. CrossRef
Carcinosarcoma of Stomach Confined to the Mucosa
Hirohiko Kuroda, Hiroaki Saito, Yusuke Kono, Yuki Murakami, Yuji Shishido, Tomoyuki Matsunaga, Yoji Fukumoto, Tomohiro Osaki, Keigo Ashida, Kanae Nosaka, Yoshihisa Umekita, Yoshiyuki Fujiwara
Yonago Acta Medica.2017; 60(4): 246. CrossRef
A Rare Case of Gastric Carcinosarcoma with Neuroendocrine Differentiation
Hae Jin Shin, Jong Seok Ju, Hee Seok Moon, Sun Hyung Kang, Jae Kyu Sung, Hyun Yong Jeong, Kyu Sang Song
The Korean Journal of Helicobacter and Upper Gastrointestinal Research.2014; 14(2): 121. CrossRef
Gastric Sarcomatoid Carcinoma
Fabio Carboni, Giovanni Battista Levi Sandri, Mario Valle, Renato Covello, Alfredo Garofalo
Journal of Gastrointestinal Surgery.2013; 17(11): 2025. CrossRef
Gastric carcinosarcoma: A case report and review of the literature
ROBERTO CIROCCHI, STEFANO TRASTULLI, JACOPO DESIDERIO, VERONICA GRASSI, IVAN BARILLARO, ALBERTO SANTORO, CARLO BOSELLI, NICOLA AVENIA, GIUSEPPE NOYA, ANGELO DE SOL
Oncology Letters.2012; 4(1): 53. CrossRef

Morsicatio Labiorum/Linguarum: Three Cases Report and a Review of the Literature.: Kyueng Whan Min, Chan Kum Park; Korean J Pathol. 2009;43(2):174-176.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.2.174

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Abstract PDF

Morsicatio is a condition caused by habitual chewing of the lips (labiorum), tongue (linguarum), or buccal mucosa (buccarum). Clinically, it often produces a shaggy white lesion caused by pieces of the oral mucosa torn free from the surface. The condition is generally found among people who are stressed or psychologically impaired. Most patients with this condition are not even aware of their biting habit. Clinically, morsicatio mimics hairy leukoplakia, and sometimes, it may be confused with other dermatologic diseases involving the oral cavity. It is rarely described in pathologic and dermatological textbooks. Histological features are distinctive, however, being careful to make a correct diagnosis can help one avoid providing inappropriate treatment. In this report we describe three cases of morsicatio, one that developed in the lower lip and the others that developed on the side of the tongue.

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SELF-INFLICTED ORAL MUCOSAL LESION: MORSICATIO LINGUARUM
Georges Aoun
BULLETIN OF STOMATOLOGY AND MAXILLOFACIAL SURGERY.2023; : 21. CrossRef
Why does patient mental health matter? Part 1: The scope of psychiatry within dentistry
Emma Elliott, Catherine Marshall
Dental Update.2022; 49(9): 719. CrossRef
White Oral Lesions of Morsicatio Linguarum
Preeti C. Arora, Aman Arora, Saurabh Arora
Indian Journal of Dermatology.2022; 67(6): 756. CrossRef
Treatment of Morsicatio Buccarum by Oral Appliance: Case Report
Min Chang, Jiyeon Kim, YounJung Park, Jeong-Seung Kwon, Seong-Taek Kim, Jong-Hoon Choi, Hyung-Joon Ahn
Journal of Oral Medicine and Pain.2021; 46(3): 84. CrossRef
Escaping the mouth-trap: Recovery from long-term pathological lip/cheek biting (morsicatio buccarum, cavitadaxia) using decoupling
Steffen Moritz, Katharina Müller, Stella Schmotz
Journal of Obsessive-Compulsive and Related Disorders.2020; 25: 100530. CrossRef
Morsicatio buccarum et labiorum
F. Frikha, E. Bahloul, H. Mesrati, K. Sellami, M. Amouri, H. Turki
Annales de Dermatologie et de Vénéréologie.2019; 146(8-9): 594. CrossRef

Myxoma of the Larynx Presenting As a Nodule.: Young Soo Song, Si Hyong Jang, Kyueng Whan Min, Woong Na, Se Min Jang, Young Jin Jun, Seung Sam Paik; Korean J Pathol. 2008;42(5):306-307.

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Abstract PDF: We describe herein a rare case of a laryngeal myxoma presenting as a nodule. Laryngeal myxomas involving the neck region, especially the laryngeal area, are quite rare. A 36-year-old male patient presented with a 2 month history of hoarseness. On laryngoscopic examination, there was a myxoid homogeneous transparent mass on the right vocal cord. On microscopic examination, the lesion was hypocellular and myxoid. The lesion showed stellate or spindle cells which were evenly dispersed in the poorly vascularized myxoid stroma. Although the incidence is extremely rare, a laryngeal myxoma should be considered in the differential diagnosis of laryngeal masses.

An Unusual Meningothelial Element in a Hairy Polyp of the Hard Palate.: Si Hyong Jang, Kyueng Whan Min, Woong Na, Se Min Jang, Seung Sam Paik; Korean J Pathol. 2008;42(5):311-313.

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Abstract PDF: Hairy polyps are a rare malformations of bigerminal origin that comprise of both ectodermal and mesodermal elements. Meningothelial elements are an extremely rare pathologic finding in hairy polyps. Here we report a case of a hairy polyp with a meningothelial element, which originated from the hard palate. A 1-year-old boy was evaluated for an intraoral mass accompanied by multiple congenital anomalies. A small polypoid mass was noted at the midline of the hard palate. The lesion had central fibroconnective tissue with an unusual stromal component showing reticulated anastomosing pseudovascular patterns. Immunohistochemical staining of the cells lining the pseudovascular spaces and the interstitial cells revealed vimentin and epithelial membrane antigen positivity.

Cystic Lymphangioma of the Breast in an Adult Woman.: Kyueng Whan Min, Si Hyong Jang, Woong Na, Se Min Jang, Young Jin Jun, Ki Seok Jang, Seung Sam Paik; Korean J Pathol. 2008;42(4):244-246.

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Abstract PDF: Cystic lymphangioma is also known as cystic hygroma, and this is a congenital malformation of the lymphatic system. Most lymphangiomas are present at birth and they are diagnosed by the age of 2. They are mostly located in the neck or axillary region. The breast as a site of origin is an extremely unusual location, and especially in adults. We report here on a case of cystic lymphangioma in a 36-year-old woman. Physical examination revealed a tender cystic mass in the upper outer quadrant of the right breast. Ultrasonography revealed an irregular hypoechoic mass lesion that was associated with irregular duct dilatation and several enlarged axillary lymph nodes. After the operation, the mass was revealed to be a cystic lymphangioma. Although it is very rare, cystic lymphangioma should be considered in the differential diagnosis of a breast mass in adults.

The Expression of c-erbB-2, EGFR, p53 and Ki-67 in Ovarian Borderline Tumors and Carcinomas of the Ovary.: Kyueng Whan Min, Moon Hyang Park; Korean J Pathol. 2007;41(5):296-306.

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Abstract PDF: BACKGROUND
An ovarian surface epithelial tumor is a heterogenous disease, and various biological and molecular factors are important for its development and progression. Several findings support EGFR or c-erbB-2 as adverse prognostic indicators for an ovarian carcinoma.
METHODS
We reviewed the histological and clinical findings of 52 carcinomas (17 endometrioid, 16 serous, 13 mucinous and 6 clear cell tumors), and 26 borderline (10 serous and 16 mucinous) tumors. Expression of c-erbB-2, EGFR, p53, and Ki-67 was evaluated on paraffinembedded tissue from a primary ovarian tumor by immunohistochemical methods.
RESULTS
Expression of c-erbB-2 was found in 7.6% of tumors and expression of EGFR was found in 9.6% of tumors by immunohistochemical analysis. No significance was found between cerbB- 2 and EGFR expression as indicators of a poor prognosis. The expression of p53 and Ki-67 (>50%) correlated with the grade and type of tumor in the ovarian cancers. p53 and Ki- 67 overexpression (>50%) was absent in the borderline ovarian tumors, whereas ovarian carcinomas showed expression of both p53 and Ki-67.
CONCLUSION
Expression of c-erbB- 2, EGFR, p53, and Ki-67 as determined by immunohistochemical analysis did not correlate with prognostic significance. However, p53 and Ki-67 expression may be used as markers to predict aggressive behavior, and to differentiate between malignant and borderline epithelial ovarian tumors. Further large-scale studies are required to clarify the significance of c-erbB-2 and EGFR expression in ovarian tumors.

The Intestinal Type of Florid Cystitis Glandularis Mimics Bladder Tumor: A Case Report.: Young Soo Song, Ki Seok Jang, Si Hyong Jang, Kyueng Whan Min, Woong Na, Soon Young Song, Hong Sang Moon, Tchun Yong Lee, Seung Sam Paik; Korean J Pathol. 2007;41(2):116-118.

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Abstract PDF: Cystitis glandularis is a benign metaplastic proliferative lesion of the urinary bladder which usually occurs in the setting of chronic irritation and infection or in some cases as a congenital process. Sometimes it presents as a tumor mass-like florid lesion, grossly mimicking malignancy. We report a case of 59-year-old man with multiple mass lesions around the trigone and the neck portion, which suggested the possibility of malignancy in clinical and radiological evaluations. Final diagnosis was confirmed by transurethral resection. The surface urothelial lining was intact. The submucosa showed von Brunn's nests, cystitis glandularis and cystitis cystica in the edematous lamina propria. There were numerous glands lined by tall columnar, mucin producing epithelium without atypia, conforming to the appearance of the intestinal variant of cystitis glandularis. The cystitis glandularis may mimic a neoplasm on gross evaluation. The intestinal variant of cystitis glandularis is particularly likely to be problematic when florid.

Kikuchi's Disease of the Mesenteric Lymph Nodes Presenting as Acute Appendicitis.: Kyueng Whan Min, Ki Seok Jang, Si Hyong Jang, Young Soo Song, Woong Na, Soon Young Song, Seung Sam Paik; Korean J Pathol. 2007;41(1):44-46.

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Abstract PDF: Kikuchi's disease is a benign self-limiting necrotizing lymphadenitis that occurs most commonly in young women, and is usually found in the cervical lymph nodes. When there is an unusual location of involved lymph nodes, the diagnosis can be difficult. We recently treated a patient with Kikuchi's disease who had ileocecal mesenteric lymph node involvement; the patient presented with symptoms of acute appendicitis in an 11-year old boy. Although mesenteric lymph node involvement of Kikuchi's disease is very rare, Kikuchi's disease should be added to the differential diagnosis of acute appendicitis in patients with enlarged ileocecal mesenteric lymph nodes on radiological evaluation.

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