Résumé
Lipoleiomyoma of the uterus [LLU] is an extremely rare, benign, uterine tumour. This rare disease was unknown for a long time. Their histogenesis remains controversial. To describe the clinical and pathological aspects of uterine lipoleiomyoma and to try to specify, by an immunohistochemical study, its degenerative or tumoral nature. 7 cases of LLU were identified represented by 2 pure Lipoma and 5 Lipoleiomyoma. We performed an immunohistochemical study including anti-vimentin, anti-smooth muscle actin, anti PS-100, anti-desmin, anti-factor VIII and anti-HMB- 45. The results were correlated with the pathogenesis of this lesion. Immunohistochemical analysis showed an expression of PS 100 only in lipocytes whereas leiomyomatous cells express only smooth muscle actin. Our study supports the benign tumoral nature of the fatty uterine lesions. Lipoleiomyomatous cells may originate from the transformation of a totipotent mesenchymal cell and not from a degenerative process
Résumé
Aim: to study the clinicopathological features of the different types of appendical mucocele and to compare them with those of pseudomyxoma peritonei
Methods: 25 cases of appendical mucocele were operated in the Cap-Bon region in Tunisia during a period of 13 years from 1994 to 2006
Results: 9 retentionnal cysts, 13 mucinous cystadenomas, one serrated adenoma, one hyperplasia of the mucosa and one cystadenocarcinoma were diagnosed. Five cystadenomas as well as the only case of cystadenocarcinoma were associated with pseudomyxoma peritonei. Pseudomyxoma peritonei occurred 20 years later than in simple appendiceal mucocele and complicated 5 cases of cystadenoma with low grade dysplasia and 1 case of cystadenocarcinoma
Conclusion: Preoperative diagnosis of appendical mucocele and pseudomyxoma peritonei should be made on scannographic features in order to assess the adequate surgical management