Purebred for sound body, mind and spirit.
Home Primary cns lymphoma: a tumor that preys on the immunosuppressed brain metastases: sometimes the first sign of a tumor meningioma: solitary, slow-growing, surgery works. On september 20, 2011 while nobody wants to get a brain tumor, if you had to pick one, meningioma would be a good choice. Weird to think of tumors in this way, but it does put things in perspective. Meningioma is, as the name implies, a tumor that is usually found attached to the dura. It usually arises from the meningothelial cell of the arachnoid – which is why you usually find these along the exterior surface of the brain (although occasionally they show up in the ventricle lining – in which case, they arise from stromal arachnoid cells of the choroid plexus). Anyway. They’re usually nicely-defined, encapsulated, rounded masses that are easily separable from the brain parenchyma. Which means that resection usually works well for these tumors. They tend to grow slowly, and they present either with vague symptoms, or with focal findings related to compression of the underlying brain. Some common places meningiomas show up are: the parasagittal aspect of the brain convexity; the lateral brain convexity; the sphenoid wing; the olfactory groove; the sella turcica; and the foramen magnum. One weird thing about meningiomas: they often express progesterone receptors! Weird. This means that during pregnancy, they may grow more rapidly. Histologically, meningiomas may show different patterns. Often, the tumor cells sit in tight little whorled clusters, like the cells in the image here (this is called a “meningothelial” or “syncytial” growth pattern). Sometimes, though, the cells are elongated, with abundant collagen (“fibroblastic”); sometimes they show characteristics of both the syncytial and fibroblastic pattern (“transitional”); â sometimes they have lots of psammoma bodies (“psammomatous”). There’s also a secretory pattern (with little pas-positive intracytoplasmic droplets) and a microcystic pattern (with a loose, spongy appearance). It’s only important to know about these patterns so you can make the diagnosis. The patient’s prognosis doesn’t differ depending on which pattern the tumor shows – all of these are considered benign, and have very little risk of recurrence after resection. There are a few variants that don’t play nice. viagra without a doctor prescription viagra for sale buy cheap viagra viagra online cheap viagra online viagra for sale viagra online cheap generic viagra cheap generic viagra generic viagra online Atypical meningiomas grow more aggressively, and have a higher rate of recurrence. You can identify these histologically by their higher mitotic rate (four or more mitoses per 10 high power. News Our Girls viagra zoloft experience Our Boys Upcoming Litters Contact Philosophy
Welcome to PVRR
PV Rhodesian Ridgeback, or PVRR, is devoted to purebred dogs of sound mind, body, and spirit. I have owned dogs my entire life, even training them professionally for a time, but this is the breed that captured my heart in 1986.
PVRR is a hobby kennel, established for love of the breed – not as a profit venture. My desire was to fulfil the versatility that this breed offers, maintain its aesthetic beauty, and never compromise genetic health.
Proud member in good standing of:
Orange Coast Rhodesian Ridgeback Club (OCRRC)
Rhodesian Ridgeback Club of the United States (RRCUS)
American Kennel Club Breeder of Merit