Ileocolic intussusception secondary to a type II low-grade appendiceal mucinous neoplasm

2013 ◽  
Vol 15 (4) ◽  
pp. e200-e201
Author(s):  
R. Oliphant ◽  
M. Balsitis ◽  
G. Doherty ◽  
I. Felsenstein
Keyword(s):  
Low Grade ◽  
Type Ii ◽  
Ileocolic Intussusception ◽  
Mucinous Neoplasm

Acute lower gastrointestinal bleeding due to low-grade mucinous neoplasm of appendix

2020 ◽  
pp. 1-4
Author(s):  
Murat Karatas ◽  
Cenk Simsek ◽  
Süleyman Gunay ◽  
Baha Zengel ◽  
Gokalp Okut ◽  
...  
Keyword(s):  
Gastrointestinal Bleeding ◽  
Lower Gastrointestinal Bleeding ◽  
Low Grade ◽  
Mucinous Neoplasm

EP.FRI.999 Case report of a Low Grade appendiceal mucinous neoplasm (LAMN) and review of literature

2021 ◽  
Vol 108 (Supplement_7) ◽  
Author(s):  
Kimberly Da Costa ◽  
Sivakumaran Sabanathan
Keyword(s):  
Intraperitoneal Chemotherapy ◽  
Pseudomyxoma Peritonei ◽  
Right Hemicolectomy ◽  
Low Grade ◽  
Mucinous Neoplasm ◽  
Mucinous Neoplasms ◽  
Mucocele Of The Appendix ◽  
Preoperative Ct ◽  
Inflammatory Processes ◽  
Progressive Accumulation

Abstract A mucocele refers to an appendix that has dilated due to progressive accumulation of mucus within its lumen. Appendiceal mucocele is a rare cause of an acute abdomen. They represent 0.2-0.7% of all appendix specimens. LAMN account for less than 0.3% of appendicectomy specimens.  We present a 38 year old man with an acute RIF’s pain who went on to have CT scan which revealed a mucocele of appendix but did not show any features of perforation or pseudomyxoma peritonei. He had a laparoscopic converted to open appendicectomy. The proximal 2 cm of appendix was oedematous but normal calibre. Histology revealed a low grade appendiceal mucinous neoplasm (LAMN) that was completely excised.  The mucocele of the appendix was first described by Rokitansky in 1842. Appendix mucocele may come as a consequence of obstructive or inflammatory processes, cystadenomas or cystadenocarcinomas. Appendiceal mucinous neoplasms commonly presents in the sixth decade of life and our patient was much younger in comparison. Several literatures suggest the value of preoperative CT imaging in obtaining diagnosis and also in planning further treatment. Appendicectomy or a right hemicolectomy is treatment of choice based on presence or absence of following factors 1. Perforated mucocele 2. Involvement of the base of the appendix. 3. Positive lymph nodes of mesoappendix and ileocolic. Patients with malignancy or pseudomyxoma peritonei are likely to require cytoreductive surgery, heated intraoperative intraperitoneal chemotherapy, early postoperative intraperitoneal chemotherapy.

scholarly journals A rare case of low-grade appendiceal mucinous neoplasm within an incarcerated Amyand�s hernia

2017 ◽  
Vol 6 ◽  
pp. 13
Author(s):  
Diana Fernandes ◽  
Maria Olim Sousa ◽  
Ricardo Viveiros ◽  
Sara Silva ◽  
Susana N�brega ◽  
...  
Keyword(s):  
Rare Case ◽  
Low Grade ◽  
Mucinous Neoplasm

scholarly journals Giant low-grade appendiceal mucinous neoplasm: A case report

2019 ◽  
Vol 7 (13) ◽  
pp. 1726-1731
Author(s):  
Jian-Ming Yang ◽  
Wei-Hao Zhang ◽  
Dan-Dan Yang ◽  
Hao Jiang ◽  
Lei Yu ◽  
...  
Keyword(s):  
Case Report ◽  
Low Grade ◽  
Mucinous Neoplasm

Triple Synchronous Tumors of the Appendix: Carcinoid, Goblet Cell Carcinoma and Low-Grade Mucinous Neoplasm

2020 ◽  
pp. 000313482095484
Author(s):  
Fabio Carboni ◽  
Renato Covello ◽  
Maria Grazia Diodoro ◽  
Enrico Vizza ◽  
Mario Valle
Keyword(s):  
Cell Carcinoma ◽  
Goblet Cell ◽  
Low Grade ◽  
Synchronous Tumors ◽  
Mucinous Neoplasm

scholarly journals Classification of mucinous appendiceal neoplasm and pseudomyoxma peritonei

2018 ◽  
Vol 8 (1) ◽  
pp. 1301-1307
Author(s):  
Arnab Ghosh
Keyword(s):  
Goblet Cell ◽  
Wide Spectrum ◽  
Low Grade ◽  
Controversial Issues ◽  
High Grade ◽  
Goblet Cell Carcinoid ◽  
Signet Ring Cells ◽  
Mucinous Neoplasm ◽  
Signet Ring

Mucinous appendiceal tumors are uncommon and include a wide spectrum of tumors whose classification remained controversial. Some of these mucin producing appendiceal tumors can disseminate to the peritoneal cavity leading to pseudomyxoma peritonei (PMP). Despite several attempts to classify mucinous tumors of appendix and PMP by different authors in the past, no universally accepted classification system was present. The controversial issues were discussed at the 2012 World Congress of the Peritoneal Surface Oncology Group International (PSOGI) in Berlin. A panel of 71 experts from 13 different countries was formed under the lead co-ordinator Norman J. Carr. A total of 4 rounds of questionnaires and one meeting were held. The opinion of the majority was taken into account. Importance of intactness of muscularis mucosae, pushing invasion and infiltrative invasion were emphasized. The entities Low grade appendiceal mucinous neoplasm (LAMN) and High grade appendiceal mucinous neoplasm (HAMN) were defined.. The terminologies suggested for Goblet cell carcinoid and adenoneuroendocrine carcinoma were goblet cell tumor and adenocarcinoma ex goblet cell carcinoid. Acellular mucin in peritoneum was not classified under PMP which was classified into 3 categories depending upon low grade , high grade cytologic features and presence of signet ring cells. It was suggested to report the extent of mucin and cells separately. A reporting format solely for mucinous appendiceal tumors was formulated by the panel. However, there are some grey areas which may have to be addressed in future.

Should All Cases of High-Grade Serous Ovarian, Tubal, and Primary Peritoneal Carcinomas Be Reclassified as Tubo-Ovarian Serous Carcinoma?

2015 ◽  
Vol 25 (7) ◽  
pp. 1201-1207 ◽  
Author(s):  
Esther Louise Moss ◽  
Tim Evans ◽  
Philippa Pearmain ◽  
Sarah Askew ◽  
Kavita Singh ◽  
...  
Keyword(s):  
Overall Survival ◽  
Clear Cell ◽  
Stage Iii ◽  
Serous Carcinoma ◽  
Low Grade ◽  
Type I ◽  
High Grade ◽  
Type Ii ◽  
Ovarian Serous Carcinoma ◽  
Significant Difference

IntroductionThe dualistic theory of ovarian carcinogenesis proposes that epithelial “ovarian” cancer is not one entity with several histological subtypes but a collection of different diseases arising from cells of different origin, some of which may not originate in the ovarian surface epithelium.MethodsAll cases referred to the Pan-Birmingham Gynaecological Cancer Centre with an ovarian, tubal, or primary peritoneal cancer between April 2006 and April 2012 were identified from the West Midlands Cancer Registry. Tumors were classified into type I (low-grade endometrioid, clear cell, mucinous, and low-grade serous) and type II (high-grade serous, high-grade endometrioid, carcinosarcoma, and undifferentiated) cancers.ResultsOvarian (83.5%), tubal (4.3%), or primary peritoneal carcinoma (12.2%) were diagnosed in a total of 583 woman. The ovarian tumors were type I in 134 cases (27.5%), type II in 325 cases (66.7%), and contained elements of both type I and type II tumors in 28 cases (5.7%). Most tubal and primary peritoneal cases, however, were type II tumors: 24 (96.0%) and 64 (90.1%), respectively. Only 16 (5.8%) of the ovarian high-grade serous carcinomas were stage I at diagnosis, whereas 240 (86.6%) were stage III+. Overall survival varied between the subtypes when matched for stage. Stage III low-grade serous and high-grade serous carcinomas had a significantly better survival compared to clear cell and mucinous cases,P= 0.0134. There was no significant difference in overall survival between the high-grade serous ovarian, tubal, or peritoneal carcinomas when matched for stage (stage III,P= 0.3758; stage IV,P= 0.4820).ConclusionsType II tumors are more common than type I and account for most tubal and peritoneal cancers. High-grade serous carcinomas, whether classified as ovarian/tubal/peritoneal, seem to behave as one disease entity with no significant difference in survival outcomes, therefore supporting the proposition of a separate classification of “tubo-ovarian serous carcinoma”.

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