Clinical journal of gastroenterology

article 2026

Endometriosis in the cecum diagnosed via forward-viewing endoscopic ultrasound-guided tissue acquisition with a 19G fine-needle biopsy needle: a case report

doi:10.1007/s12328-026-02392-3 ·PMID:42406283

Subepithelial lesions (SELs) in the lower gastrointestinal tract are rare, and diagnosis and treatment of colorectal SELs are often challenging. Although endoscopic ultrasound-guided tissue acquisition (EUS-TA) is useful for minimally invas…

case-report 2025

A case of deep endometriosis with cyst formation as a differential diagnosis of rectal duplication cyst in the presacral space

doi:10.1007/s12328-025-02100-7 ·PMID:39937201

Cysts occurring in the presacral space may become malignant and therefore require surgical removal. A wide variety of cystic lesions can occur in the presacral space, such as tailgut cysts, dermoid cysts, and duplication cysts. However, dee…

case-report 2023

Mixed high-grade serous and large cell neuroendocrine carcinoma arising from rectal endometriosis 11 years after hysterectomy

doi:10.1007/s12328-023-01769-y ·PMID:36763235

The malignant gastrointestinal endometriosis transformation is represented by endometriosis-associated intestinal tumors. Endometrioid adenocarcinoma and clear cell adenocarcinoma are most common among the endometrial cancers of all organs.…

2021

Gastric mucosa-associated lymphoid tissue lymphoma in conjunction with multiple lymphomatous polyposis in the context of Helicobacter pylori and Helicobacter suis superinfection.

doi:10.1007/s12328-020-01310-5 ·PMID:33393060

A 53-year-old woman visited a doctor and complained of chest discomfort after meals. Esophagogastroduodenoscopy showed multiple granular elevations in the gastric body. After biopsies from the elevations, she was diagnosed with mucosa-assoc…

article 2021

Ileocolonic intussusception due to severe endometriosis

doi:10.1007/s12328-021-01473-9 ·PMID:34189712

Endometriosis is the presence of normal endometrial tissue outside the uterus, which may appear in up to 15% of fertile female population. Bowel endometriosis is uncommon, and obstruction due to endometrial ileocolic intussusception is extr…

2020

Primary adenosquamous carcinoma of the liver detected during cancer surveillance in a patient with primary sclerosing cholangitis.

doi:10.1007/s12328-020-01204-6 ·PMID:32785892

Primary sclerosing cholangitis (PSC) is associated with significant risk for hepatobiliary cancers. Primary hepatic adenosquamous carcinoma (ASC), a rare subtype of cholangiocarcinoma, is composed of both adenocarcinoma and squamous cell ca…

case-report 2019

A case of unique endoscopic findings of intestinal endometriosis exposed to the mucosa: aggregation of papillary protruded bulges from the submucosal elevation of the rectum

doi:10.1007/s12328-018-0912-y ·PMID:30244310

Intestinal endometriosis exposed to the mucosa is relatively rare. Therefore, its endoscopic findings with pit pattern and magnifying endoscopy with narrow-band imaging and clinicopathological features of intestinal endometriosis exposed to…

article 2019

Sigmoid endometriosis diagnosed preoperatively using endoscopic ultrasound-guided fine-needle aspiration

doi:10.1007/s12328-019-01046-x ·PMID:31549336

We report a case of sigmoid endometriosis diagnosed preoperatively based on endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) findings. A 42-year-old female came to us with left lower abdominal pain and bloating that had started…

article 2012

Rupture of appendiceal mucocele due to endometriosis: report of a case

doi:10.1007/s12328-012-0302-9 ·PMID:26182324

We report a rare case of a mucocele of the appendix due to endometriosis which accidentally ruptured prior to surgery. A 56-year-old woman was referred to our institution for further evaluation of a cecal tumor. Colonoscopy showed a submuco…