Pancreatic Serous Cystadenoma: A Continuing Diagnostic Challenge. To understand the natural history of serous cystadenoma (SCA), and the diagnostic accuracy of SCA and identify possible factors that lead to the correct diagnosis. SCA is a benign cystic pancreatic neoplasm of the pancreas, accounting for ~15% of resected pancreatic cysts. Current recommendations are to proceed with surgical
Analysis of benign neoplasms of the rete testis formerly termed "Sertoliform cystadenomas" demonstrates that they are not Sertoli cell tumours with intra-rete growth. Benign tumours of the rete testis include mostly cystadenomas and adenomas. A subset with tubular or tubulopapillary architecture shows morphological similarities to Sertoli cell tumours; these neoplasms were previously termed "Sertoliform cystadenomas of the rete testis". In the most recent WHO classification, they have been interpreted as Sertoli cell tumours, not otherwise specified (NOS), with pure intra-rete growth, and therefore excluded as an entity. The remaining cystadenomas of the rete testis vaguely resemble tumours of Mullerian origin arising in the ovaries. In this study we analyse benign tumours of the rete testis
Total Laparoscopic Resection of an Extrahepatic Mucinous Biliary Cystadenoma with Liver Involvement (with Video). Intrahepatic mucinous biliary cystadenoma is rare, and extrahepatic MBC is even rarer. To our knowledge, total laparoscopic resection of an extrahepatic MBC that had extended intrahepatically has never been reported. A 28-year-old female presented to our hospital with upper abdomen
Case 300: Ruptured Mucinous Cystadenoma of the Pancreas. History Part one of this case appeared 4 months previously and may contain larger images. A 40-year-old woman presented to the outpatient department of our hospital with a 2-year history of abdominal pain, which had worsened in the past few days. There were no other constitutional symptoms; in particular, there was no weight loss or loss
Calponin and MUC6 complement inhibin as diagnostic immunomarkers of serous cystadenoma in endoscopic ultrasound-guided aspiration/biopsy specimens. Because serous cystadenoma (SCA) does not usually require excision, it is critical to distinguish it from differential diagnoses which do, especially neuroendocrine tumour (NET). The gold standard for diagnosing SCA is assessment of endoscopic
Ovarian seromucinous cystadenomas and adenofibromas: first report of a case series. To report a series of benign ovarian seromucinous neoplasms, an uncommon and hitherto poorly described category of tumours included in the current 2014 World Health Organisation classification of tumours of the female reproductive organs. We report the clinicopathological features of a series of 22 benign ovarian seromucinous neoplasms (cystadenomas and adenofibromas or admixtures). The neoplasms occurred in patients aged 32-83 years (mean = 62, median = 65.5) and involved the left ovary (n = 14), the right ovary (n = 6) or both ovaries (n = 2). There was a common association with endometrioid elements (endometrioid differentiation within the cystadenoma/adenofibroma and/or endometriosis) and other endometriosis
Imaging and clinical features of giant multilocular prostatic cystadenoma: A case report. Giant multilocular prostatic cystadenoma (GMPC) is a rare type of prostatic epithelial neoplasm. Thus, the imaging features of this condition are not well known. We report the imaging and clinical manifestations of a case of GMPC. The case reported here relates to a 71-year-old man who complained
[Inverse ratio ventilation combined with PEEP in infants undergoing thoracoscopic surgery with one lung ventilation for lung cystadenomas: a randomized control trial of 63 cases]. To investigate the effect of inverse ratio ventilation (IRV) combined with positive end-expiratory pressure (PEEP) in infants undergoing thoracoscopic surgery with single lung ventilation (OLV) for lung cystadenomas . A total of 66 infants undergoing thoracoscopic surgery with OLV for lung cystadenomas in our hospital from February, 2018 to February, 2019 were randomized into conventional ventilation groups (group N, =33) and inverse ventilation group (group R, =33). Hemodynamics and respiratory parameters of the infants were recorded and arterial blood gas analysis was performed at 15 min after two lung ventilation
Differential diagnosis of pancreatic serous cystadenoma and mucinous cystadenoma: utility of textural features in combination with morphological characteristics. Texture analysis of medical images has been reported to be a reliable method for differential diagnosis of neoplasms. This study was to investigate the performance of textural features and the combined performance of textural features and morphological characteristics in the differential diagnosis of pancreatic serous and mucinous cystadenomas. We retrospectively reviewed 59 patients with pancreatic serous cystadenoma and 32 patients with pancreatic mucinous cystadenoma at our hospital. A three-dimensional region of interest (ROI) around the margin of the lesion was drawn manually in the CT images of each patient, and textural parameters were
Discrimination of Pancreatic Serous Cystadenomas From Mucinous Cystadenomas With CT Textural Features: Based on Machine Learning. This study was designed to estimate the performance of textural features derived from contrast-enhanced CT in the differential diagnosis of pancreatic serous cystadenomas and pancreatic mucinous cystadenomas. Fifty-three patients with pancreatic serous cystadenoma and 25 patients with pancreatic mucinous cystadenoma were included. Textural parameters of the pancreatic neoplasms were extracted using the LIFEx software, and were analyzed using random forest and Least Absolute Shrinkage and Selection Operator (LASSO) methods. Patients were randomly divided into training and validation sets with a ratio of 4:1; random forest method was adopted to constructed
Cytohistological diagnosis of pancreatic serous cystadenoma: a multimodal approach. Serous cystadenomata (SCAs) are benign pancreatic cystic neoplasms that present a diagnostic challenge despite many investigational approaches. Notwithstanding the promise of molecular diagnostics, these tests have limited accessibility in day-to-day surgical pathology practices. We aim to corroborate and build
Pancreatic schwannoma mimicking pancreatic cystadenoma: A case report and literature review of the imaging features. Schwannomas, also known as neurilemmoma, are benign neoplasms that originating from Schwann cells in peripheral nerve sheaths. The head, neck, and extremities are the most common sites; however, pancreatic schwannomas are rare neoplasms. Accurate preoperative diagnosis of these tumors is very tough because of pancreatic schwannomas usually mimicking other cystic tumors. Here we present a case of pancreatic schwannoma misdiagnosed as pancreatic cystadenoma. We presented a rare case of a 55-year-old female admitted to our hospital for abdominal distension. The physical examination and results of laboratory testing reveal no abnormalities. A computed tomography (CT) scan
Cystadenoma of the Seminal Vesicle: A Case Report of Rare Seminal Vesical Tumor and Review of Literature. Although the secondary involvement of the seminal vesicles by prostate cancer is relatively common, seminal vesicle as a primary site for neoplastic disease is uncommon. There are a wide variety of tumors among primary seminal vesicle tumors that are derived from both the epithelium and stroma. Hence, they have been classified as mixed epithelial-stromal tumors. This report describes a 32-year-old man who presented with a retrovesical cystic mass that was initially thought to be a prostatic tumor but demonstrated pathologically to be a cystadenoma of the seminal vesicles.
Discrimination of serous cystadenoma from mucinous cystadenoma in the pancreas with contrast-enhanced ultrasonography: a prospective study in 61 patients The preoperative diagnosis between serous cystadenomas (SCAs) and mucinous cystadenomas (MCAs) in pancreas is significant due to their completely different biological behaviors. The purpose of our study was to examine and compare detailed
Serous Pancreatic Cystadenoma with Compression of Wirsung's Duct. Serous cystadenoma of the pancreas is a common cystic neoplasm typically of benign evolution that rarely communicates with the pancreatic ductal system. We present several images originating from two cases of serous cystadenoma of the pancreas which led to compression and dilatation of Wirsung's duct. These cases suggest that when the diagnosis of pancreatic microcystic lesion is detected, associated, or not associated with a central fibrous scar and a low carcinoembryonic antigen level in the aspirated fluid, the presence of dilatation of Wirsung's duct does not exclude the diagnosis of serous pancreatic cystadenoma.
Unilateral Papillary Cystadenoma of the Epididymis as A First Presentation of Von Hippel-Lindau Disease. Association between papillary cystadenoma of the epididymis (PCE) and Von Hippel-Lindau Disease (VHLD) is well known and stronger for bilateral tumors. Unilateral PCE occurs either as a sporadic tumor without evidence of VHLD or in the context of a known diagnosis of VHLD, indeed it has never
Papillary Cystadenoma: An Incidental Finding in Tubal Ligation von Hippel-Lindau disease (vHLD) is a rare autosomal dominant disorder with multiple benign and malignant tumors of different organs. We report a papillary cystadenoma of the mesosalpinx found in close association with an adenomatoid tumor discovered incidentally following tubal ligation in a patient with vHLD.
Mucinous cystadenocarcinoma arising from mucinous cystadenoma of the lung: case report and review of the literature Mucinous cystadenoma is a benign tumor commonly found in the pancreas, the ovaries or the appendix. Only very few cases of these tumors originating from the lungs have been reported worldwide, with even less cases describing malignant transformation. We present the case of a 58-year -old woman with a history of recurrent pulmonary infections who underwent left upper lobectomy for lung abscess and was initially diagnosed with pulmonary mucinous cystadenoma (PMCA). Upon thorough immunohistochemical workup, especially due to carcinoembryonic antigen (CEA) positivity, intramucinous singlet cells were eventually diagnostic for invasive carcinoma, in this case a mucinous
A rare case of giant extra-ovarian mucinous cystadenoma arising from sigmoid mesocolon An 80-year-old female presented with one month history of acutely worsening abdominal distention and pain, without features of bowel obstruction. A giant intra-abdominal simple cyst, separate from the ovaries, was seen on imaging. Initial haematological and biochemical investigations, including tumour markers , were normal. At laparotomy, the cystic tumour was discovered to arise from the sigmoid mesocolon and was resected . Histopathology revealed the tumour to be a benign extra-ovarian mucinous cystadenoma, which is a neoplasm of ovarian origin that can arise from extra-ovarian sites, including the mesentery. Extra-ovarian mucinous cystadenoma arising specifically from the mesentery are very rare intra