meninges. plural of meninx; the three membranes covering the brain and spinal cord: the dura mater, arachnoid, and pia mater. adj., adj meninÂ´geal.Meninges of the central nervous system.eninx. Etymology: Gk, meninx, membrane. the three membranes enclosing the brain and the spinal cord, comprising the dura mater, the pia mater, and the arachnoid membrane. The pia mater and the arachnoid can become inflamed by bacterial meningitis, causing serious complications that may be life-threatening.
The exact cause of cholangiocarcinoma is unknown, and most cases occur sporadically, but there are several well-defined risk factors. The most common of these is primary sclerosing cholangitis (PSC). The true incidence of cholangiocarcinoma in the setting of PSC is reported as 8%-40%, depending on the type of study.
Chondrocalcinosis is a rheumatologic condition that is characterized by accumulation of calcium pyrophosphate dihydrate crystals or CPPD crystals in connective tissues or the joint cartilages.lthough the exact cause of the disorder is not known, evidence suggests that it might have a hereditary association. Chondrocalcinosis often runs in families and so a genetic link can be suspected. Calcium pyrophosphate crystals accumulate in the joint, firstly in the cartilage and then in the synovial fluid.