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Jiyoung Choi,김혁중,Suk Ki Jang,So Ya Paik,Ki Ho Kim 대한자기공명의과학회 2020 Investigative Magnetic Resonance Imaging Vol.24 No.2
Synchronous primary cancers in the liver and gallbladder have been rarely reported. We report a case of synchronous cancers of hepatic angiosarcoma and gallbladder adenocarcinoma, mimicking gallbladder cancer with hepatic invasion. Additionally, the clinical implications, the radiologic features, and the diagnostic difficulties are further discussed.
Poroid hidradenoma of the scalp
Min, Byung Duk,Lee, Chong Kun,Chung, Chang Eun,Kim, Dong Chul,Paik, So Ya Korean Cleft Palate-Craniofacial Association 2021 Archives of Craniofacial Surgery Vol.22 No.3
Poroid hidradenoma has both features of hidradenoma and poroma. The histological hidradenoma framework consisting of solid and cystic components, and the presence of poroid and cuticular cells resembling a poroid neoplasm. Despite transforming into malignant neoplasm only in < 1% of cases, its histological characteristics may resemble those of malignant neoplasms. Although the risk of malignant transformation is very low, surgical excision is recommended to prevent growth and/or recurrence. To date, very few cases of poroid hidradenoma have been reported in the literature. Herein, we present a case of poroid hidradenoma on the scalp of a 74-year-old woman.
( Dong Ok Jeon ),( Ju Sang Park ),( Hyo Jin Cho ),( Jung Hee Kim ),( So Ya Paik ),( Il Dong Kim ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
Background: Inverted colonic diverticula (ICD) are rarely reported. ICD can be confused with elevated polypoid lesions and are occasionally complicated by bleeding and colonic perforation following biopsy or endoscopic resection. We report a case of inverted diverticulitis of ascending colon misdiagnosed as subepithelial tumor. Case report: A 61-year-old man, who had history of adenomatous colon polyps and an about 3.5 cm sized subepithelial tumor in the ascending colon 5 years ago, presented for surveillance colonoscopy. He had no symptoms. Physical examination and laboratory data were normal. On follow-up colonoscopy, subepithelial tumor without change in size showed a central necrosis communicating to surface in ascendingcolon. Biopsies revealed chronic infl ammation and elongated crypts without evidence of malignancy. The abdominal CT showed 4 cm sized segmental wall thickening with enhancement in proximal ascending colon. A laparoscopic right hemicolectomy was performed to rule out malignant transformation of subepithelial tumor. Intraoperative fi ndings revealed an infl ammatory mass in proximal ascending colon. Histopathologic evaluation revealed a 3.5x3.0 cm sized diverticulum with multiple mucosal invaginations containing inspissated mucoid materials, congested subserosa and fi brinous exudated serosa without malignancy -The fi nal diagnosis was inverted colonic diverticulitis of ascending colon. Two years ago, on further history taking, patient had an episode of right lower quadrant abdominal pain, which was misdiagnosed as an infectious enterocolitis and resolved with conservative management. Maybe it was thought to be due to colonic diverticulitis. Conclusion: Because ICD may resemble polypoid lesions in the colon, they should be considered in the differential diagnosis of unusual polypoid lesions by additional imaging studies such as EUS and CT. To our knowledge, this is the fi rst case of ascending ICD complicated with diverticulitis.
Solitary sclerotic fibroma on the thigh
Kim, Ji Hoon,Shin, Chi Ho,Kim, Dong Chul,Paik, So Ya,Lee, Chong Kun Korean Cleft Palate-Craniofacial Association 2020 Archives of Craniofacial Surgery Vol.21 No.5
Sclerotic fibroma is a rare fibrous tumor of the skin associated with Cowden's disease. In 1989, Rapini described sclerotic fibroma without Cowden's disease as solitary sclerotic fibroma of the skin. It is a solid, well-circumscribed, slow-growing nodular tumor and it looks similar to a keloid scar. Consequently, it is extremely difficult to make a differential diagnosis of solitary sclerotic fibroma with keloid scar based on clinical findings only. The authors report a case of solitary sclerotic fibroma arising at the left lateral thigh of a 25-year-old man.
( Seung Min Lee ),( Sang Jong Park ),( Sun Hong Yoo ),( Young Min Park ),( So Ya Paik ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
Primary hepatic mucosa-associated lymphoid tissue(MALT) lymphoma is rare subtype of primary hepatic lymphoma(PHL), reported to occur in only 3% of PHL. To date, the diagnosis of hepatic MALT lymphoma can be only reached by pathology. Imaging studies such as CT and MRI do not yield specifi c features to hepatic MALT lymphoma. We recently experienced a case of primary hepatic MALT lymphoma with chronic hepatitis B which was found not by single phase abdominal CT, but by FDG-PET. A 71-year old woman was referred for evaluation of early gastric cancer(EGC) of mid antrum. HBs Ag was positive, HBe Ag was reactive, Anti-HBe was non-reactive, HBV DNA titer was 88314018IU/ml. Conventional single phase abdominal CT scan for metastatic evaluation, showed no evidence of regional lymphadenopathy and no other sites of malignancy. But, on PET, a large, elliptical, markedly hypermetabolic mass(maxSUV:6. 59) was identifi ed at S2 of left lobe liver. The primovist enhanced liver MRI, for further evaluation, revealed a 4. 5cm x 3. 0cm mass which was low signal intensity on T1WI, high signal intensity on T2Wl. The biopsy specimen showed markedly intense, diffuse porto-periportal atypical lymphocytic infiltration with lymphoid follicle formation consistent with MALT lymphoma that were phenotypically CD 20+, CD79a+. CD3- and CD5-. There was no fi nding of tumor cell infi ltration in bone marrow biopsy. So We did endoscopic submucosal dissection for EGC and prescribed tenofovir 300mg once daily for chronic hepatitis B. For hepatic MALT lymphoma, patient is now receiving radiotherapy.