Although cystic lesions of the pancreas are considered relatively rare, improved diagnostics have resulted in higher reported incidence. Cystic neoplasms comprise approximately 10% to 15% of primary cystic masses of the pancreas, and 1% to 15% of all pancreatic neoplasms. While non-neoplastic cystic lesions predominantly affect men with a wide age range, the vast majority of neoplastic cysts oc...

cystic duct and stone removal were performed under a preoperative diagnosis of chronic cholecystitis (adenomyomatosis) and stone-induced dilated cystic duct. Macroscopically, the gallbladder showed chronic cholecystitis with segmental adenomyomatosis ( fig. 2 ). The cystic duct retained the spiral valve, but was significantly dilated with wall thickening. Histopathologically, chronic cholecysti...

Cystic follicles have excess fluid derived from blood flow in the theca interna of the follicle; therefore, the vasculature network is related to cystic follicle formation. Vascular endothelial growth factor (VEGF) is a potent stimulator of blood vessel permeability and angiogenesis. The aim of this study was to examine the expression of VEGF receptors proteins and mRNA in cystic follicles to e...

Biliary cystic tumors are rare neoplasms occurring in the liver and less frequently in the extrahepatic biliary system. Recently, biliary cystic tumors in the liver are thought to be divided into a biliary mucinous cystic neoplasm and intraductal papillary neoplasm of the bile duct. We report a case of a large cystic tumor originating around the hepatic hilum which had luminal communication wit...

hydatid disease is the most common infections worldwide, but it rarely involves multiple organs. herein, a 12-year-old boy is presented, who was admitted to children's medical center, tehran university of medical sciences, tehran, iran with symptoms of irritability, sleepless, and weak­ness of the extremities. patient's brain computed tomography (ct) scan with contrast media showed large multil...

Almost all patients with cystic fibrosis eventually develop chronic pulmonary infection with specific bacterial pathogens, notably Pseudomonas aeruginosa and Staphylococcus aureus. Despite this, the development of large pulmonary abscess cavities in patients with cystic fibrosis is exceedingly uncommon. Similarly, bacteraemia in cystic fibrosis is surprisingly rare. We describe a patient with c...

The World Health Organization (WHO) classification of cystic pancreatic tumors defines mucinous cystic neoplasms as large, thick-walled, septated cysts with no communication with the main pancreatic duct, associated with the presence of ovarian-like stroma. Serous cystic neoplasms, on the contrary, present with a cuboidal or simple squamous epithelium and fibrous or hyalinized stroma without ov...

Cystic lymphangioma mainly occurs in children. Cystic mediastinal lymphangioma (CML) originates from mediastinal tissues and is an extremely uncommon cystic lymphangioma that develops from the lymphatic vessels. The present study reports the case of 46-year-old male patient with a giant CML that was surgically resected by video-assisted thoracoscopy. The largest diameter of the CML was 18.0 cm,...

CONTEXT Pancreatic cystic lesions are increasingly recognized and comprise different pathological entities. The management of these lesions is challenging, because of inadequate preoperative histological diagnosis. Among this family of lesions, mature cystic teratomas are an extremely rare finding. CASE REPORT We present the case of a 61-year-old man with a mature cystic teratoma of the pancr...

Cystic partially differentiated nephroblastoma is a rare tumor of the kidney usually affecting infants. It should be distinguished from Wilms’ tumor with multicystic areas and multilocular cystic nephroma. Multilocular cystic nephroma is a benign tumor whereas Wilms’ tumor with multicystic areas is at the malignant end of the range of classification of such tumours. Cystic partially differentia...