On the occasion of one case of appendiceal mucocele, the authors studied on etiology, classification, clinical signs, diagnosis and treatment of this disease. Results: Appendiceal mucocele is a rare injury form of appendix, it stretches out and full of mucosity. It might be a benign or malignant injury. Clinical symptoms are not typical therefore it is difficult to diagnose before operating; most of the cases were discovered by accident. Recently, they can preoperative diagnose by ultrasound and CT scan. If the injury is benign, the appendix is removed simply, even through endoscopy, but if the injury is doubt to be malignant, it is necessary to resect the right colon. Although it is a malignant injury, the prognosis is still good as a colon cancer.
Mucocele ; Diagnosis ; Therapeutics

PURPOSE: To evaluate the usefulness of CT features of appendiceal mucocele in the diagnosis and evaluation of complications. MATERIALS AND METHODS: We retrospectively reviewed CT findings and compared with operative findings in 7 cases of pathologically proven appendiceal mucocele. CT findings such as location and extent of the lesion, Issue density, thickness or calcification of the wall, presence of adjacent inflammatory infiltration, and visualization of normal vermiform appendix were analyzed. RESULTS: Appendiceal mucocele was found as homogeneous low density cystic mass adjacent to the cecum, which has no surrounding inflammatory infiltration except in one case of perforation and one case of intussusception. Mean CT number measured in 4 cases was 21 Hounsfield unit. Thin curvilinear calcifications were noted along the cystic wall in 2 cases. Normal vermiform appendix couldn't be demonstrated in all cases. CONCLUSION: Appendiceal mucocele is characterized by homogeneously low density and thin walled cystic tumor adjacent to cecum without surrounding inflammatory infiltration, and absence of normal vermiform appendix on CT. Therefore, CT is valuable in preventing operative complications of appendiceal mucocele.
Appendix ; Cecum ; Diagnosis ; Intussusception ; Mucocele* ; Retrospective Studies

Mucoceles are relatively common cystic lesions of the paranasal sinuses. However, mucocele of the nasal septum is extremely rare. We report a case of a mucocele present in this unusual location. Mucocele of the nasal septum should be considered in the differential diagnosis of a mass of the nasal septum and/or median canthal region. Nasal septal mucocele can be effectively treated with endoscopic marsupialization or complete excision.
Diagnosis, Differential ; Mucocele* ; Nasal Septum* ; Paranasal Sinuses

The authors analyse the ultrasonographic findings of 10 cases of appendiceal mucocele retrospectively. In atotal of 10 cases, 6 cases showed only cystic masses with posterior reinforcement. The remaining 4 cases showedinternal echoes in the cystic masses. Differential diagnosis of mucocele from periappendiceal abscess is notpossible in ultrasound. The possibility of mucocele shold be considered if cystic mass in right lower quadrantabdomen is observed in ultrasound.
Abscess ; Diagnosis, Differential ; Mucocele ; Retrospective Studies ; Ultrasonography

The appendiceal mucocele is a rare disease and very difficult to get the diagnosis preoperatively because of the rartity of classical symptoms. With progress in diagnostic procedures such as colonofiberscopy, preoperative diagnosis of appendiceal mucocele has become possible. We experienced a case of appendiceal mucocele in 50 years old male who was admitted due to vague RLQ discomfort, and was diagnosed by colonofiberscopy and surgical specimen obtained by right hemicolectomy. So we present this case with a review of literatures.
Appendix ; Diagnosis ; Humans ; Male ; Middle Aged ; Mucocele* ; Rare Diseases

A mucocele of the sphenoid sinus is relatively rare, and it has nonspecific clinical features. Hence, it is hard to diagnose it with the history of the illness alone. However, if the sphenoid mucocele is not detected and treated in early stage, its sequalae could be very serious or permanent, such as intracranial complication or blindness. Recently, the authors experienced a case of a sphenoid mucocele with unilateral visual disturbance for a period of one year. The patient underwent endoscopic sinus surgery-marsupialization successfully, but remnant visual disturbance as a sequalae did not fully recover. Thus high index of suspicion, prompt diagnosis using imaging studies, and urgent surgical intervention are crucial for promising of complete recovery from the disease.
Blindness ; Diagnosis ; Humans ; Mucocele* ; Optic Nerve Diseases* ; Sphenoid Sinus*

Diagnostic Errors ; Encephalocele ; diagnosis ; Female ; Humans ; Meningocele ; diagnosis ; Middle Aged ; Mucocele ; diagnosis ; Sphenoid Sinus ; pathology

Appendiceal intussusception is a rare disease entity and appendiceal mucocele is one of the causes of this disease. Although computed tomography, ultrasonography, barium enema and colonoscopy can be performed to make a preoperative diagnosis, only a few cases of appendiceal mucocele-induced intussusception have been precisely diagnosed by these diaggnostic tools. Most of all, few such cases have been confirmed by colonoscopic examination. Colonoscopic examination has a supplementary role for the differential diagnosis of acute or chronic appendicitis, tumor or abscess in the ascending colon and cecum that is caused by appendiceal intussusception. We report here on a case of intussusception that was caused by an appendiceal mucocele, and this showed a target appearing structure in the hepatic flexure and a cystic mass inside the intussusceptive lumen on abdominal CT, and a huge mass was discovered on the colonoscopic examination.
Abscess ; Appendicitis ; Appendix ; Barium ; Cecum ; Colon, Ascending ; Colonoscopy ; Diagnosis, Differential ; Enema ; Intussusception ; Mucocele ; Rare Diseases

Adult intussusception is a rare condition, unlike in children. Ihere is an identifiable bowel lesion as a leading point in most of cases. Retrospectively we reviewed 22 patients with adult intussusception, and analyzed CT scans of 13 patients during the last 5 years. Twenty of the 22 patients had various causes of intussusception and 7 patients were associated with primary malignancy, 5 patients with benign tumor, and 4 patients with adhesive band. CT scans of 13 cases all showed characteristic target appearance or sausage-like soft tissue mass within the bowel, suggesting intussusception. In eleven of the 13 patients(84.6%) an intussuscepting mass was identified on CT scan as the lead point. Specific diagnosis for the cause of intussusception could be made by CT in four of 13 cases (three lipomas and one mucocele). In conclusion, CT is useful not only for the diagnosis but also for the evaluation of the leading causes of intussusception. Especially, CT could determined the exact cause of intussusception in cases of lipoma and mucocele.
Adhesives ; Adult* ; Child ; Diagnosis ; Humans ; Intussusception* ; Lipoma ; Mucocele ; Retrospective Studies ; Tomography, X-Ray Computed

Mucocele of the appendix is a rare disease entity which is infrequently diagnosed prior to a laparotomy. With progress in diagnostic procedures, such as the use of ultrasonography, computed tomography, and colonoscopy, preoperative diagnosis of the appendiceal mucocele has become possible. The case that we have experienced involves an eighty five-year old male. He was admitted with bowel obstruction symptoms such as severe abdominal pain, tenderness, and increased bowel sound sounds. He was diagnosed as having appendiceal mucocele by an abdominal CT and colonoscopy, He was operated on and the surgical specimen revealed appendicea] mucocele.
Abdominal Pain ; Appendix ; Colonoscopy ; Diagnosis ; Humans ; Laparotomy ; Male ; Mucocele* ; Rare Diseases ; Tomography, X-Ray Computed ; Ultrasonography