Complex renal cyst. Laparoscopic treatment

The difference between the simple renal cysts, that doesn't require surgical treatment, and those that need it, sometimes is difficult. The laparoscopic surgical treatment (laparoscopic cyst decortication -laparoscopic partial nefrectomy or radical laparoscopic nefrectomy) its becoming the gold standard technique, recommending this procedure in Bosniak cyst type III or IV, and in the symptomatic renal cyst type I/II and in any patients with Bosniak cyst renal II. We present a case report in which a renal cell carcinoma was found after laparoscopic cyst decortication of Bosniak cyst type II with laparoscopic radical nefrectomy posteriorly.     

Primary hydatid cyst of the retroperitoneum

Retroperitoneal contamination may occur during the natural history of hydatid disease. Primary hydatid cyst of the retroperitoneum is extremely rare. The authors report a case of a giant retroperitoneal hydatid cyst. Clinicians and surgeons must be aware of this possibility and follow a policy of nonsystematic puncture of an abdominal cyst and avoid spillage during surgery. Symptoms are related to the size, location, or ensuing complications of a cyst. Its occurrence should be strongly suspected ahead of any abdominal cyst, especially in an endemic area, where it may act as a parasite. Total and careful surgical excision is the gold-standard therapy.     

The paraurethral cyst or Skene's duct cyst in the female newborn

The paraurethral cyst or Skene's duct cyst is a rare congenital anomaly in the female newborn. It appears like a round, yellow or orange-colored cystic mass on either side of the urethral meatus. The reported incidence is 1 in 2.000 to 7.000 female births. The low frequency of the Skene's duct cyst and the little awareness of it and its benignity may lead to wrong diagnosis that underestimates its incidence. There are authors that agree with surgical treatment of paraurethral cyst to obtain an early resolution, even though a majority agrees to manage conservatively.     

Laparoscopic excision of a newborn rectal duplication cyst

Congenital rectal duplication cyst is a rare entity treated with surgical excision. Without treatment, a rectal duplication cyst may cause a variety of complications, most notably, transforming into a malignancy. We report on a 7-week-old girl who was found to have a rectal duplication cyst. The rectal duplication cyst was successfully excised laparoscopically. Rectal duplication cysts are rare alimentary tract anomalies generally discovered during childhood. Complications include symptoms arising from the cyst and the possibility of malignant degeneration. They are typically managed by surgical excision.     

Symptomatic isolated lumbar interdural arachnoid cyst

A 72-year-old man presented with an extremely rare case of symptomatic isolated lumbosacral interdural arachnoid cyst manifesting as pain and weakness in the right buttock and lower extremity that had aggravated for 2 weeks. Although the surgical strategy for the interdural cyst was not complicated, the origination of the cyst was not clearly understood. Surgery found an isolated membrane of the cyst inside double-layered dura without communication with the intact arachnoid membrane. Cerebrospinal fluid with hemorrhage accumulated within the interdural cyst indicated recent bleeding into the cyst. Our experience suggests that this cyst was congenital based on the surgical results and imaging studies.     

Colloid cyst of the third ventricle

Summary The clinical and x-ray features of 28 cases of colloid cyst of the third ventricle are described. Colloid cyst is one of the most favourable space-occupying lesions of the brain for successful surgical removal, because an exact pre-operative diagnosis is possible. The surgical approach for colloid cyst of the third ventricle is discussed and the frequency of postoperative seizure is reviewed in 28 cases and compared with the literature.     

Bile duct cancer developed after cyst excision for choledochal cyst

Oncogenesis after cyst excision for choledochal cyst and suitable surgical procedures for this operation are discussed. The clinical data of 23 patients with cancer of the biliary tree after excision of choledochal cyst reported in the English-language and Japanese literature were reviewed, and data for 1353 Japanese patients with choledochal cyst and/or pancreaticobiliary malunion were analyzed. In the 23 patients reported in the literature, age at cyst excision ranged from 1 to 55 years (average, 23.0 ± 13.7 years), and cancers were detected at age 18–60 years (average, 32.1 ± 12.2 years), with intervals between cyst excision and cancer detection of 1–19 years (average, 9.0 ± 5.5 years). Sites of cancer development were: intrahepatic, six; anastomotic, eight; hepatic side residual cyst, three; and the intrapancreatic duct, six. In the Japanese patients with choledochal cyst and/or pancreaticobiliary malunion, the incidence of cancer associated with primary choledochal cyst and/or pancreaticobiliary malunion was 16.2% (219/1353). The incidence of cancer development after cyst excision in this population, of whom 1291/1353 underwent surgery, was assumed to be 0.7%. Nearly half of the 23 patients in the literature had undergone inadequate cyst excision. Oncogenesis of cancers after cyst excision is possibly different from that of choledochal cysts. Received for publication on Feb. 17, 1999; accepted on March 29, 1999     

Ciliated hepatic foregut cyst in a young child

Ciliated hepatic foregut cysts are a rare entity usually found in adults. We present a case of a 3-year-old boy incidentally noted to have a radiographically complex liver cyst on computed tomographic scan. Given the complex appearance, the cyst was excised. Pathology revealed a ciliated hepatic foregut cyst. This is the second child and youngest patient affected with this lesion reported in the literature. The etiology of the lesion and an argument for surgical removal in pediatric patients are presented.     

Laparoscopic resection of a giant omental cyst

Omental and mesenteric cysts are uncommon, requiring surgical intervention when symptomatic. A report of a giant primary omental cyst successfully treated utilizing minimal-access surgical techniques is presented. The laparoscopic approach allowed complete, intact excision of the cyst, while decreasing operative morbidity and hospital stay.     

Symptomatic Rathke's cleft cyst mimicking suprasellar arachnoid cyst

The authors report an atypical case of symptomatic entirely suprasellar Rathke's cleft cyst mimicking suprasellar arachnoid cyst. A 55-year-old male was introduced to our hospital complaining of bitemporal hemianopsia. CT and MRI demonstrated a cystic mass located entirely in the suprasellar cistern and to compress the optic nerve and mammillary body. The cystic wall was not enhanced in MRI. CT cisternography showed the suprasellar non-communicating cyst with cistern. The hormonal function was slightly disturbed by the pituitary compression. Under the diagnosis of suprasellar arachnoid cyst, a left front temporal craniotomy was performed to resect the suprasellar mass. The surgical specimen consisted ciliated epithelium and was diagnosed Rathke's cleft cyst. After operation, he recovered completely free.     

Solitary pericardial hydatid cyst

Hydatid cyst of the heart is an uncommon presentation of human echinococcosis which may lead to life-threatening conditions. Diagnosis should be suspected in every case of cyst-like mass in persons coming from areas where echinococcus granulosus is endemic. Echocardiography, computed tomography and magnetic resonance imaging can help in the differential diagnosis of the lesion. Even if some reports of successful therapy with benzimidazoles have been described, the treatment of choice is the surgical excision of the cyst. Pericardiectomy with cyst removal is feasible with low morbidity and mortality rates even in elder patients. The authors describe the successful surgical management of a single giant pericardial hydatid cyst in a 78-year-old woman from North Africa.     

Association of bronchogenic cyst of the pancreas and duplication cyst of the stomach]

One case of bronchogenic cyst of the pancreas associated to a true gastric cyst produced by duplication is described. Such congenital neoformations are extremely rare. The symptoms are highly variable. The diagnosis can be established only through the histopathological study of the surgical specimen.     

Urachal cyst in an adult woman

Urachal abnormalities represent a rare pathology and, in case of presence, they are more frequent in children and, among adults, in men. We report a case of urachal cyst in an adult woman in whom it was difficult to determine preoperatively the origin of the abdominal tumor. Positive diagnosis and treatment implied surgical exploration and resection. Even rare, this pathology should be considered in the differential diagnosis of an abdominal cyst. While the diagnosis may be established by clinical examination and imaging methods, surgical exploration is justified and, besides, offers the therapeutic opportunity.     

Laparoscopic excision of an omental cyst.

An omental cyst is a rare intra-abdominal tumor. The authors describe a case of omental cyst that was diagnosed correctly with abdominal magnetic resonance imaging (MRI) and successfully resected completely by use of minimal-access surgical techniques. A sagittal or coronal MRI view may precisely reveal the tumor position. The authors consider MRI to be very useful in the diagnosis of abdominal cystic masses. Laparoscopic surgical techniques are replacing or complementing open abdominal surgical procedures.     

Hydatic cyst of thyroid gland

INTRODUCTION: Primary hydatid cyst of thyroid gland is an exceptional localization. The thyroid gland is an uncommon site even in Morocco where echinococcal disease is endemic. The aim of this study was to report our experience of this rare disease, and to review diagnosis problems and management. PATIENTS AND METHOD: Retrospective study of six patients with primary hydatid cyst of thyroid gland during a 4-year period. RESULTS: We report six cases of primary hydatid cyst of thyroid gland. Symptoms were isolated thyroid nodules. Diagnosis was based on echography and echinococcal immunologic test. However, hydatic origin was suspected in only 50% of patients preoperatively and immunologic test had 33% false positive rate. Surgical management was a lobo-isthmectomy with a total resection of the cyst in four cases (67%) and a resection of the cyst prominent dome in two cases (33%). Diagnosis was always confirmed by macroscopic aspects and pathology. In all cases, the postoperative course was uneventful and no recurrence occurred with a 19 months follow up. CONCLUSION: Primary hydatid cyst of thyroid gland is a potential but rare situation. Positive diagnosis can be difficult during preoperative period. Cyst size and diagnosis doubt are two crucial criteria to decide the optimal surgical strategy (lobo-isthmectomy with total cyst resection vs resection of the cyst prominent dome).     

Aneurysmal bone cyst of the ethmoid

Although nearly 500 cases of aneurysmal bone cyst have been recorded in the English literature, involvement of the facial bone is uncommon. To our knowledge, this is the first case of extragnathic, facial aneurysmal bone cyst to be reported in the English literature. A left ethmoid aneurysmal bone cyst was found in a 20-year-old pregnant woman who had a 5-month history of progressive left periorbital swelling, left cystic nasal mass, progressive nasal obstruction, blurred vision, and occasional diplopia. The diagnostic evaluation included a sinus series, facial lamiograms, and an EMI scan. Needle aspirates taken frequently from the intranasal cyst consisted of a dark bloody fluid. The surgical procedure, using external rhinotomy approaches, pathologic findings, and a literature review are presented.     

Intrasacral perineurial cyst

A rare case of intrasacral perineurial cyst is presented. Findings on metrizamide myelography and computed tomography scan are described, and their usefulness in the diagnosis of this rare condition is emphasized. The literature is reviewed, and the clinical and pathological features of the 17 reported cases including our own are summarized. Indication for operation and surgical approach are briefly discussed.     

Epidermoid cyst of the corpus callosum]

Epidermoid cysts are most commonly located in the cerebellopontine angle and the parasellar regions. The authors report a case of an epidermoid cyst of unusual location: it arises in the midline and involves the body of the corpus callosum with interhemispheric exophytic growth. Reviewing the literature they did not find any similar report. C.T. scan and M.R.I. are the methods of choice for establishing the diagnosis and differentiating between epidermoid cyst, dermoid cyst, lipoma and arachnoid cyst. M.R.I. is highly sensitive and is especially useful in determining tumour extension, particularly in the sagittal and coronal planes, essential for surgical treatment planning. Treatment should be complete surgical resection in order to avoid recurrence and chemical meningitis.     

肾上腺囊肿的诊断和外科治疗(附22例报告)

目的：探讨肾上腺囊肿的诊断与外科治疗方法。方法：回顾性分析22例肾上腺囊肿的诊断与治疗资料。结果：22例中，上皮性囊肿1例，内皮性肿囊8例，假性囊肿13例，均行囊肿切除术。结论：B超与CT是诊断肾上腺囊肿最可靠的定位诊断方法；强调在CT检查中有增强效应的囊肿要作内分泌功能检测，对直径＞3cm或有内分泌功能的肾上腺囊肿应进行外科治疗。     

Unusual echinococcal cyst

We report a case of a single echinococcal cyst that originated from the liver, and occupied the upper right retroperitoneal space and kidney. The diagnostic problems and the surgical procedure are discussed.