background and aims. the aim of this study was to investigate the relative frequency of developmental odontogenic cysts in an iranian population. materials and methods. in this study 245 cysts from both jaws, treated in the faculty of dentistry at tabriz university of medical sciences during a 10-year period from 1998 to 2008, were analyzed in order to evaluate the incidence of such cysts. we h...

Echinococcus is a cestode. The most common Echinococcus species causing human infection are E. granulosus and E. multilocularis [1]. The commonest sites for cysts are the liver (59%–75%), followed in frequency by lung (27%), kidney (3%), bone (1%–4%) and brain (1%–2%). Other sites such as the heart, spleen, pancreas and muscles are very rarely affected [2]. Multi-organ involvement without liver...

This chapter reviews the major structural malformations and developmental defects encountered in dogs and cats and their related effects on the central nervous system. Note that congenital deafness and congenital vestibular disorders are discussed with deafness and vestibular disease in the chapter on peripheral nerve disorders (See Myopathies and Neuropathies). Arachnoid Cysts Arachnoid cysts,...

CONTEXT The increasing frequency of incidental pancreatic cysts at imaging is a challenging topic due to the uncertainty of the aggressiveness of these lesions, especially small ones. To date, no data exist about their prevalence in a population of liver-transplanted patients. OBJECTIVE To determine the prevalence of incidental pancreatic cysts in liver-transplanted patients using magnetic re...

Parathyroid cysts are unilocular, thin-walled cysts, and they are seen very rarely. Their formation mechanisms are not clear. They are usually localized in the cervical region, and mediastinal settlements are rare. They are usually asymptomatic, but cysts that have settled in the neck may be symptomatic, such as tracheal pressure symptoms. There are two types-namely, functional cysts and non-fu...

BACKGROUND Multiple hydatid disease is a complex surgical problem, and its treatment can follow either conservative principles (drainage or obliteration of the cavity) or radical principles (cystoperi-cystectomy or liver or lung resection). METHODS A total of 220 patients with multiple cystic echinococcosis (428 cysts) were managed between 1967 and 1998 with conservative operations (group A) ...

Cystic diseases in the female pelvis are common. Cysts of the female genital tract comprise a large number of physiologic and pathologic cysts. The majority of cystic pelvic masses originate in the ovary, and they can range from simple, functional cysts to malignant ovarian tumors. Non-ovarian cysts of female genital system are appeared at least as often as ovarian cysts. In this review, we aim...

Ductal cysts. Choledochal cysts: a congenital dilatation of part or whole of the common bile duct. See separate article Choledochal Cysts. Cysts related to Caroli's disease: Caroli's disease is the combination of cystic dilatation of the intrahepatic bile ducts and infantile polycystic kidney disease. It has autosomal recessive inheritance. It can present with fever, abdominal pain and recurren...

Nonparasitic splenic cysts require a totally different type of surgical management than that of parasitic cysts. Three cases of nonparasitic splenic cysts and their surgical management by the open and laparoscopic approaches are presented. The surgical technique and review of the recent literature are discussed to demonstrate the current trends in the operative management of nonparasitic spleni...

Five patients with hepatic (3), pelvic (1) or spinal (1) hydatid cysts received 10 mg/kg/d albendazole for 1-3 months prior to surgery. Daughter cysts were present in the spinal hydatid and in one patient with hepatic disease. Electron microscope examination of the cyst tissue of the pelvic and the 2 hepatic cysts lacking daughter cysts showed no evidence of germinal layer, and the protoscolece...