Nervous system cysts

The asexual developmental cycle of this protozoan occurs within any nucleated cell of warm-blooded animals. This cycle consists of two infective stages tachyzoites, which imdergo fast multiplication in various host cell t)q5es and are t)q5ically present in the acute infection, and bradyzoites, which undergo slow multiplication in latent tissue cysts, have a high affinity for neural and muscular tissues and are located predominantly in the central nervous system, the eye, and skeletal and cardiac muscles. 

The risk factors for renal carcinoma include cigarette smoke, obesity, prolonged estrogens (male, Syrian hamsters), lead phosphate, aflatoxin Bl, and strepto-zotocin. Familial factors are seen with Von Hippel-Lindau (VHL) disease, an autosomal dominant disease with retinal angiomas and hemangioblastoma of the central nervous system long-term dialysis patients develop acquired cysts in 30%-50% and 6% with acquired cysts will develop RCC (Richie et al. 2000). 

Nervous System The first case of a giant anterior arachnoid spinal cyst (AASC) with extensive syringomyelia after spinal anesthesia has been described [11 ]. 

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