PubMed · 14068203
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B TESAURO. 1963-07-15. [RECURRING ECHINOCOCCAL CYSTS].. https://pubmed.ncbi.nlm.nih.gov/14068203/
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INTRODUCTION: Tailgut cyst (retrorectal cystic hamartoma) is an uncommon congenital lesion that arises from remnants of the embryonic post-anal gut. It is usually benign and located in the retrorectal/presacral space. CASE REPORT: A 45-year-old woman presented with lower abdominal discomfort, urinary frequency and right-sided pelvic mass. Digital rectal examination and computerized tomography scan demonstrated a multicystic complex mass occupying the region of the right ovary and extending into the retrorectal/presacral space. The initial diagnosis was neoplasm of the right ovary. At laparotomy, the mass was lying free from apparently normal internal genital organs. Excision of the mass from the right pelvis and retrorectal/presacral space and total abdominal hysterectomy were performed. Microscopic examination revealed that the wall of the cystic mass consists of a lining epithelium composed of columnar and squamous epithelium and a stroma composed of fibrous tissue containing scattered discontinuous bundles of smooth muscle fibers. Based on these histological findings, the final diagnosis was tailgut cyst. CONCLUSION: Tailgut cyst is an uncommon entity that should be included in the differential diagnosis of retrorectal/presacral mass. The treatment of choice is complete surgical excision.
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Urethral polyps are a rare finding in children, particularly in the very young. They are suspected by the presence of various clinical signs such as obstruction, voiding dysfunction and haematuria. There is an association with other urinary tract congenital anomalies. They are usually benign fibro-epithelial lesions with no tendency to recur and are treated by surgical ablation, fulguration or laser therapy. We report a 1-month-old boy with an antenatally diagnosed left ectopic pelvic kidney, postnatal urinary tract infection and no clinical signs of obstruction. Voiding cystourethrography to exclude vesico-ureteric reflux showed a trabeculated bladder and a mobile filling defect in the posterior urethra. Owing to its large size, cystotomy was necessary to remove the polyp successfully.