Mucinous appendiceal neoplasms: Do we all speak the same language?

Darriba-Fernández, María Usaura; Madrazo-González, Zoilo; Aranda-Danso, Humberto; Sanjuan-Garriga, Xavier; Hernández-Gañan, Javier

doi:10.4321/s1130-01082012000100013

Cited by 6 publications

(4 citation statements)

References 3 publications

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“…Appendicular mucocele is also a rare disease with a reported incidence of 0.2 to 0.3%, histologically varying from benign to malignant with a high risk of developing pseudomyxoma of the peritoneum. In the presence of evidence of malignancy (metastatic lymph adenomegaly, perforation with intraperitoneal dissemination and affected base of the appendix (positive resection margins), the method of surgical treatment is right hemicolectomy with lymphatic dissection, while appendectomy is recommended in cases of benign mucocele (17)(18)(19).…”

Section: Discussionmentioning

confidence: 99%

Acute appendicitis without appendicitis

Daskalova,

Lavchev,

Rusenov

et al. 2023

SSM

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INTRODUCTION: A clinical, imaging, and laboratory constellation for acute appendicitis requires operative treatment to avoid life-threatening complications such as perforation and peritonitis. The latter, in turn, are an absolute indication for surgical intervention. Although it does not change the operative approach, in rare cases, the cause of the condition is appendicular diverticulitis-usually an incidental, pathological diagnosis with a literature frequency of 0.004-2.1%. The differential diagnosis of diverticula of the appendix in patients with acute appendicitis is important because of the higher risk of developing the above complications, but also because of primary neoplasms of the appendix. The latter are rare Tu with a frequency of 0.2-0.5% of all GIT neoplasms. Among them, carcinoids are the most common and are characterized by slow growth and a long asymptomatic course. However, they often present with the picture of acute appendicitis with/ without perforation, abscess or peritonitis. MATERIALS, METHODS AND RESULTS:The study was single-center, retrospective. Three patients with histologically verified appendicular diverticulitis with perforation and periappendicular abscess are presented, necessitating laparoscopic appendectomy (1 case), conventional appendectomy (1 case), right hemicolectomy (1 case). Adenocarcinoma of the appendix was proven in two patients with laparoscopic appendectomy.After verification of the permanent histological result and after discussion with the hospital Oncology Committee in the first case, the operation performed was determined to be sufficient in view of the oncological radicality. In the second case, reoperation with right hemicolectomy was recommended for histological evidence of T3 adenocarcinoma of the appendix. An appendicular mucocele was pathologically proven in one of the patients after laparoscopic appendectomy. CONCLUSION:The differential diagnosis of diverticulitis of the appendix in patients with acute appendicitis is important due to the higher risk of developing the above complications, but also because of primary neoplasms of the appendix. The latter are rare Tu with a frequency of 0.2-0.5% of all GIT neoplasms, which can also present with the picture of acute appendicitis with/without perforation, abscess or peritonitis.

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Section: Discussionmentioning

confidence: 99%

Acute appendicitis without appendicitis

Daskalova,

Lavchev,

Rusenov

et al. 2023

SSM

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“…Los tumores confinados al apéndice son clínicamente benignos y se denominan de bajo grado; los que se diseminan por el peritoneo pueden tener diferente evolución clínica. Los tumores con invasión de la pared apendicular o alto grado de atipia evolucionan de forma más agresiva y se consideran adenocarcinomas 6 .…”

Section: Discussionunclassified

“…La forma de presentación es inespecífica, desde un cuadro asintomático la mayoría de las veces hasta cuadros similares a apendicitis aguda, tumor palpable o síntomas urológicos 6 . El diagnóstico clínico es difícil por el cuadro inespecífico; en general se encuentra como hallazgo incidental durante el procedimiento quirúrgico, un estudio de imagen o como resultado de la pieza quirúrgica 9 .…”

Section: Discussionunclassified

Neoplasia quística del apéndice. Reporte de un caso clínico inusual en el Hospital Central Sur de Alta Especialidad PEMEX

Chama-Naranjo¹,

Chávez-Villanueva²,

Farell-Rivas³

2020

CIRU

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“…Low-grade tumors confined to the appendix are clinically benign, whereas those that spread to the peritoneum may have a different clinical course. On the other hand, those tumors with appendiceal wall invasion or high degree of atypia, can have an aggressive evolution, and are considered adenocarcinomas [5]. According to the Pai and Longacre classification, AMT are divided into mucinous cystadenoma, mucinous neoplasm of uncertain malignant potential, mucinous neoplasm of low malignant potential, and mucinous adenocarcinoma [4].…”

Section: Introductionmentioning

confidence: 99%