A 61 year-old man was diagnosed prior to surgery as having multiple carcinoids of the rectum. Postoperative histological examination revealed 52 carcinoids, 1-6 mm in diameter, invading the submucosal layer, and innumerable endocrine cell micronests, less than 0.1 mm in diameter, were present in the rectum. A careful examination revealed several argyrophil cell micronests "budding from" the basis of the glands. Most of the tumor cells showed a positive reaction for Grimelius stain and some immunoreactivities for GLI, PP, PYY, insulin and NSE by the PAP method. Moreover, PYY cell hyperplasia was detected in the rectal mucosa, markedly in the areas surrounding the carcinoids. The authors suggest that (initiative) progenitor cells may develop into these lesions due to unknown factors.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Association Between Body Fat Percentage and Urinary Flow Rate in US Adults: Analysis of the National Health and Nutrition Examination Survey 2011-2018.
Br J Nutr
March 2025
The Tenth Affiliated Hospital of Southern Medical University (Dongguan People's Hospital),Department of Urology,523000 No.3 South Wanlu Road, Xingu Yong, Wanjiang District, Dongguan City, Guangdong Province, China.
To assess the relationship between total body fat percentage(TBFP), trunk fat percentage(TFP), and urinary flow rate(UFR).We stratified by age and sex and hypothesize that TBFP and TFP are negatively associated with UFR across all groups.The study utilized data from the National Health and Nutrition Examination Survey (NHANES), which includes a series of nationally representative cross-sectional surveys.
View Article and Find Full Text PDFKimura disease of the tongue base: a rare case diagnosed through cytological examination of Warthin-Finkeldey-type multinucleated cells.
J Clin Exp Hematop
March 2025
Department of Diagnostic Pathology and Cytology, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-ku, Osaka-city, Osaka, Japan.
Kimura disease (KD) is a rare chronic inflammatory condition that primarily affects Asian males and typically presents in the head and neck region. We describe an exceptionally rare case of KD involving the lingual tonsil of Waldeyer's ring in a 39-year-old Japanese man, marking only the second reported instance of lingual involvement and the first specifically affecting the tongue base. The patient presented with a well-circumscribed, 3.
View Article and Find Full Text PDFStatus of temozolomide use without insurance coverage in patients with aggressive pituitary neuroendocrine tumors.
Endocr J
March 2025
Hypothalamic & Pituitary Center, Moriyama Memorial Hospital, Tokyo 134-0081, Japan.
The 2017 World Health Organization classification described aggressive pituitary neuroendocrine tumor (PitNET) as "a tumor with strong invasiveness and rapid growth, which is difficult to treat with surgery, radiation therapy, or drug therapy," which remains a challenge in the treatment of pituitary tumors. Currently, temozolomide (TMZ) is the first-line treatment for aggressive PitNET. However, it is not yet covered by insurance in Japan.
View Article and Find Full Text PDFA new removable connecting device for MARPE expander with non-common path of insertion.
Zhong Nan Da Xue Xue Bao Yi Xue Ban
October 2024
Xiangya Stomatological Hospital and Xiangya School of Stomatology, Central South University; Hunan Engineering Research Center for Digital Intelligence and Personalized Medicine; Hunan 3D Printing Engineering Research Center of Oral Care, Changsha 410008.
Objectives: Maxillary transverse deficiency is a common malocclusion frequently observed in orthodontic clinics. Miniscrew-assisted rapid palatal expansion (MARPE) not only produces greater skeletal expansion but also offers advantages such as simple miniscrew implantation without flap elevation, enhanced patient comfort, and an expanded age range and indications for palatal expansion. However, the fixed connection between the expander and the miniscrews makes the expander difficult to remove, significantly hindering its clinical application.
View Article and Find Full Text PDFZNF667 alleviates the inflammatory damage in intervertebral disc degeneration via inhibiting NF-κB signaling pathway.
Zhong Nan Da Xue Xue Bao Yi Xue Ban
October 2024
Department of Spine Surgery, Second Xiangya Hospital, Central South University, Changsha 410011, China.
Objectives: With the aging population, the incidence of intervertebral disc degeneration (IDD) is increasing every year. The pathogenesis of IDD is complex, and there are currently no effective treatment options. This study aims to investigate the specific function and underlying mechanism of zinc finger protein 667 (ZNF667) in the inflammatory damage of nucleus pulposus cells in IDD.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!