In the central olfactory system, MOB neurons mainly project to the piriform
cortex and amygdala.
Spinnerets: ALS with single major ampullate gland spigot, single large adjacent nubbin and many piriform
gland spigots (Fig.
Within the cerebellum and piriform
plexus, diffuse mild vacuolation of the grey and white matter was present along with mildly increased numbers of microglial cells.
Further imaging demonstrated a remnant of the base of the lesion low in the piriform
fossa possibly going up to the upper oesophagus and a barium swallow revealed some oesophageal mucosal irregularity at approximately 21cm.
The valve is bound superolaterally by the caudal edge of the upper lateral cartilage, and the lateral border includes the bony piriform
aperture and the fibrofatty tissue of the ala.
In preliminary results, "We're seeing activation of the piriform
cortex," he said.
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Oral cancers include those of the lip, tongue, mouth, throat and a region called the piriform
sinus.The most common signs of the disease are ulcers, sores, or red or white patches in the mouth that last longer than three weeks, together with unexplained pain in the mouth or ear.
Microscopic findings included a granulomatous reaction indicated by lymphohistiocytic elements with large numbers of multinucleated Langhan-type giant cells and numerous isolated yeast-like organisms with a birefringent membrane isolated or in chains alternating with some piriform
elements showing simple gemation (Figure 1, panels B, C).
Mammalian brain is abundant in mGlu7 receptors which are highly expressed in most brain areas, including neocortical regions, cingulate and piriform
cortices, CA1, CA3 and DG regions of hippocampus, amygdala, locus coeruleus, hypothalamic and thalamic nuclei (Ohishi, Akazawa, Shigemoto, Nakanishi, & Mizuno,1995).
Structures examined included the caudate-putamen (CPu): central, dorsal, dorsomedial, and ventrolateral regions; cortex: cingulate, insular, and piriform
regions; nucleus accumbens (nAcc): core and shell regions; lateral septal nucleus, ventral part (LSV); bed nucleus of the stria terminalis, lateral division, dorsal region (BNST); thalamus: paraventricular nucleus (PV) and dorsomedial; amygdala: basolateral nucleus (BNA), central nucleus (CEA), and medial nucleus (MNA); hippocampal formation: dentate gyrus, CA1 and CA3 regions; and the premammillary nucleus.