Clinical outcomes of positive resection margin after endoscopic mucosal resection of early colon cancers.

Background/aims: When determining the subsequent management after endoscopic resection of the early colon cancer (ECC), various factors including the margin status should be considered. This study assessed the subsequent management and outcomes of ECCs according to margin status.

Methods: We examined the data of 223 ECCs treated by endoscopic mucosal resection (EMR) from 215 patients during 2004 to 2014, and all patients were followed-up at least for 2 years.

Endoscopic and microscopic findings of gastrointestinal tract in Henoch-Schönlein purpura: Single institute experience with review of literature.

Asia has the highest incidence of Henoch-Schönlein purpura (HSP). Although 50% to 75% of patients with HSP manifest gastrointestinal (GI) symptoms, endoscopic, and pathologic findings of HSP have been rarely reviewed in Asia.Patients diagnosed with HSP who had undergone endoscopic biopsy from GI tract (GIT) in Soonchunhyang University Seoul Hospital from 2000 to 2018 were evaluated and 25 cases with 44 biopsies from upper GI tract (U-GIT) or lower GI tract (L-GIT) were enrolled.

Mediastinal and retroperitoneal fibrosis as a manifestation of breast cancer metastasis: A case report and literature review.

Rationale: Mediastinal and retroperitoneal fibrosis as a manifestation of metastasis from malignancies is rare disease and particularly, cases of mediastinal fibrosis have been rarely reported.

Patient Concerns: A 60-year-old woman presented with dyspnea and bilateral flank pain. The patient had no previous history of malignancy.

Correction to: Factors Predictive of Complete Excision of Large Colorectal Neoplasia Using Hybrid Endoscopic Submucosal Dissection: A KASID Multicenter Study.

The original version of the article unfortunately contained errors in author affiliation. Affiliation of third and ninth author was incorrectly assigned.

Factors Predictive of Complete Excision of Large Colorectal Neoplasia Using Hybrid Endoscopic Submucosal Dissection: A KASID Multicenter Study.

Background: Endoscopic submucosal dissection (ESD) with snaring (hybrid ESD) bridges the gap between ESD and endoscopic mucosal resection. We evaluated factors predictive of en bloc and complete resection of large colorectal neoplasms using hybrid ESD.

Methods: This was a prospective clinical study of 78 patients who underwent hybrid ESD for excision of colorectal neoplasms (≥ 2 cm) between May 2015 and September 2016 at six university hospitals.

Approach to cytomegalovirus infections in patients with ulcerative colitis.

Cytomegalovirus (CMV) reactivation is common in patients with severe ulcerative colitis (UC), and may ref lect exacerbation of mucosal inf lammation and/or administration of immunosuppressants. The question of whether CMV is an active pathogen or 'an innocent bystander' in the exacerbation of UC remains controversial. Patients with UC exacerbated by reactivated CMV experience worse prognoses than those without CMV reactivation and antiviral therapy significantly reduces the need for colectomy in patients with severe UC and high-grade CMV infection, indicating that CMV plays a role in UC prognosis.

Tamoxifen-associated polypoid endometriosis mimicking an ovarian neoplasm.

Tamoxifen has been widely used for adjuvant treatment of breast cancer, but several gynecological side effects have been noted, including endometrial hyperplasia, polyp and carcinoma. Polypoid endometriosis is one of the extremely rare benign complications associated with tamoxifen therapy. A 66-year-old postmenopausal woman, who had received left partial mastectomy due to breast cancer (about 4 years ago) and was taking tamoxifen treatment, had an ovarian cyst on ultrasonography.

Horner syndrome in neurofibromatosis type 1.

The authors report a rare case of Horner syndrome in a patient with neurofibromatosis type 1 (NF-1). A 31-year-old man visited the clinic with drooping left eyelid. The physical examination revealed ptosis of the left eyelid, miotic pupil, facial anhidrosis, and several skin masses on the chest.

Endoscopic ultrasound-guided sampling of a metastatic mucinous adenocarcinoma mimicking a gastric subepithelial tumor.

Metastatic mucinous adenocarcinoma of appendix origin and mimicking a gastric subepithelial tumor (SET) is very rare. Endoscopic ultrasound (EUS)-guided sampling is a useful diagnostic method for SETs. However, the cytologic findings of metastatic mucinous adenocarcinoma are unfamiliar to many pathologists and gastroenterologists.

Second primary mucosal malignant melanoma in hypopharynx.

Primary mucosal melanomas of the head and neck are rare. In addition, second primary mucosal melanoma following primary cutaneous malignant melanomas is very rare. We report a second primary mucosal melanoma.

Ectopic prostate tissue at the bladder dome presenting as a bladder tumor.

The presence of ectopic prostate tissue in the bladder is common, but the involvement of the bladder dome has rarely been reported. This case report describes a 72-year-old man who presented with gross painless hematuria. Cystoscopy revealed a smooth sessile mass at the dome region of the bladder.

Liver cirrhosis due to autoimmune hepatitis combined with systemic sclerosis.

Systemic sclerosis (SSc) is a chronic systemic disease that affects the skin, lungs, heart, gastrointestinal tract, kidneys, and musculoskeletal system. Although up to 90% of patients with scleroderma have been estimated to have gastrointestinal involvement, liver disease has been reported only rarely. A 51-year-old woman was hospitalized due to esophageal variceal bleeding.

Sarcomatoid carcinoma of colon: extremely poor prognosis.

Colonic sarcomatoid carcinomas are known to be extremely rare tumors, with only 22 cases reported either as sarcomatoid carcinomas or carcinosarcomas in the literature. The known characteristics are rapid growth, a high recurrence rate, and an extremely poor prognosis. Herein we report a case of a patient who had a sarcomatoid carcinoma of the sigmoid colon and died only 22 days after surgery due to rapid tumor growth.

[Pathology of nonalcoholic steatohepatitis].

Nonalcoholic steatohepatitis (NASH), one of the NAFLDs (nonalcoholic fatty liver diseases), is regarded as a hepatic manifestation of metabolic syndrome. NASH can progress to cirrhosis, and possibly to hepatic malignancy. Currently, liver biopsy is the only reliable method of assessing the presence or absence of NASH and the stage of fibrosis.

Bilateral sclerosing stromal tumor of the ovary in a premenarchal girl.

Sclerosing stromal tumor (SST) is a rare benign ovarian neoplasm classified as a type of sex cord stromal tumor that occurs predominantly in young patients. Several reports have described the US, CT and MR features of SST, but there have been no reports of a bilateral calcified SST in a child. We present a case of a bilateral SST of the ovary with calcification in a 12-year-old premenarchal girl and describe the US, CT, MR and pathological findings.

Solitary fibrous tumor arising in gastric serosa.

The solitary fibrous tumor (SFT) of peritoneum, especially arising in gastric serosa, is extremely rare. A case of SFT arising in gastric serosa of a 70-year-old man is reported. On abdominal computed tomography scan, an approximate 8.