RESUMO
Appendicular diverticulosis is a rare condition observed in about 0.004-2% of all appendectomy specimens. Risk of perforation/bleeding is high and a relevant association with mucinous neoplasms is known. Appendectomy is indicated even in case of occasional finding. We present the case of a 22-year-old man who entered the Emergency Room for pain in right iliac fossa. Blood tests showed only a slight increase in C-reactive protein. Abdominal ultrasound (US) evidenced an appendix with thickened walls and a rounded fluid-filled hypoechoic lesion at its distal tip. Laparoscopic appendectomy confirmed the presence of mucocele. Postoperative course was uneventful and the patients discharged on postoperative day 3. Histological examination indicated diverticulitis/peridiverticulitis of the appendix and acute suppurative appendicitis. No perforation of the diverticula was detected. No neoplastic epithelium/mucous material was observed. In our case, preoperative US proved to be a useful alternative to computed tomography for the diagnosis.
RESUMO
Solitary fibrous tumour (SFT) is a rare mesenchymal tumour, usually originating from the serous surfaces, typically of the pleura and pericardium. However, it can also have localizations in soft tissues and visceral organs. We report the case of a 79-year-old woman affected by mesenteric SFT, localized in the sigmoid colon. We performed open excision of the abovementioned mass en-bloc with the sigmoid colon and left adnexal tissues. Pathological examination of surgical specimen revealed a diagnosis of SFT CD34+, high-risk of metastases. Mesenteric SFTs are even rarer forms of SFT and may be asymptomatic or cause intestinal occlusion. There is no consensus on the management of this tumour. Radical surgical excision is the only curative treatment, while adjuvant therapies are indicated in case of advanced disease. Due to the high metastatic risk of malignant forms, a long follow-up is mandatory in these cases.
