Objective: Rare co-existance of disease or pathology Background: Incidental appendiceal
neoplasms account for 1–2% of appendectomies. Mucinous neoplasms and carcinoids are …

Quadruple synchronous primary neoplasms are very rare with only three cases reported in
the English-speaking literature to date. Collision tumors are also rare entities, especially of …

We report two rare cases of appendiceal collision tumours, each involving an appendiceal
mucinous neoplasm with a concomitant appendiceal carcinoid. The first case presented with …

Appendiceal tumors are incidentally detected in 0.5% cases of appendectomy for acute
appendicitis and occur in approximately 1% of all appendectomies. Here, we report two …

Introduction Collision tumors of the appendix are rare tumors consisting of two distinct
pathologies arising from different cell lines simultaneously. The most common type is the …

We report an appendiceal collision tumour in a 23-year-old woman who presented with
constipation and abdominal fullness. Imaging revealed a right lower quadrant abdominal …

Appendiceal neoplasms are rare gastrointestinal cancers. Synchronous neoplasms—where
two adjacent neoplasms undergo bi-clonal malignant transformation—are even rarer …

Appendiceal neoplasms are a rare cause of gastrointestinal cancers, comprising a small
percentage of cases. The coexistence and synchronization of appendiceal neoplasms are …

Collision tumor of the appendix is an extremely rare entity, defined as the coexistence of two
independent tumors located in the same site without transitional changes. We describe in …

Abdominal pain is a very common presenting symptom in the emergency department (ED).
To reach an accurate diagnosis one must consider the possibility of multiple conditions that …