The urachus is an embryologic remnant which degenerates after the birth. Defective obliteration of the urachus leads to urachal abnormalities. An infected urachal cyst is one of the urachal abnormalities and this pathology is rare in adult women. We report a case of 33-year-old woman with pelvic pain and dysuria who was diagnosed with infected urachal cyst. Infected urachal cyst is a rare patho...

The objective of this work was to conduct an ontogenetic and structural study of the urachus. We studied 40 human fetuses (13-20 weeks post conception, WPC). The urachus was stained in Masson's trichrome, to quantify connective tissue and smooth muscle and to determine the urachal lumen area. Weigert's resorcin-fuchsin was used to observe elastic fibers, and picrosirius red and immunohistochemi...

Urachal mucinous tumor of uncertain malignant potential is very rare and is characterized by a multilocular cyst showing the proliferation of atypical mucin-secreting cells without stromal invasion. As in ovarian and appendiceal borderline tumors, it represents a transitional stage of mucinous carcinogenesis in the urachus. In addition, this tumor may recur locally and develop into pseudomyxoma...

The urachus is a tubular structure that connects the bladder to the allantois in the embryonic development, involuting after the third trimester. The urachus carcinoma is an extremely rare tumor that accounts for <1% of all bladder cancers. We report a case of a 46-year-old woman, with no past medical history, complaining of hematuria with 6-month duration and a physical exam and an abdominal c...

The urachus establishes a connection between the dome of the bladder and the umbilicus throughout fetal life. If the urachus does not close completely, malignancy is a potential complication. The primary treatment for malignant urachal tumor is surgical excision. A 61-year-old male patient diagnosed with urachal carcinoma had undergone partial cystectomy 25 years previously. Twenty years later,...

BACKGROUND Urachal disease is uncommon. The surgical treatment consists of the resection of the urachus throughout its entire length. Our objective is to demonstrate the use of minimally invasive surgery to treat this disease. METHODS Six patients were studied and diagnosed. The technique used three 10-mm ports on the right hemi abdomen, through which the dissection of the urachus was perform...

BACKGROUND Urachal carcinoma is an uncommon neoplasm associated with poor prognosis. CASE PRESENTATION A 45-year-old man was admitted with complaints of abdominal pain and pollakisuria. A soft mass was palpable under his navel. TC-scan revealed a 11 x 6 cm tumor, which was composed of a cystic lesion arising from the urachus and a solid mass component at the urinary bladder dome. The tumor wa...