Large cerebello-pontine epidermoid tumor in a child

Cerebellopontine angle lesions are more commonly found in adults; however, they are uncommon in children. 13 year female child presented with progressive cerebellar signs and decreased hearing in left ear. Magnetic resonance imaging was suggestive of left cerebello-pontine angle epidermoid tumor that was treated surgically. In this rare case we discuss the imaging findings and review the relevant literature

Modulation of morphology and efficacy of new CB1 receptor antagonist using simple and benign polymeric additives

1014-1021The compound 1, [(1H-[1]benzoxepino[5,4-c]pyrazole-3-carboxamide, 8-chloro-1-(2,4-dichlorophenyl)-4,5-dihydro-N- 1-piperidinyl], a known CB1 modulator has been synthesized and characterized by IR, NMR and single Crystal X-ray study. The single crystal study of 1 displays a number of halogen bonds leading to 1-D network along with other weak noncovalent interactions. The CB1 modulator 1 inherently possesses extremely low solubility in water, which makes its application as drug difficult, and this may be attributed to multiple halogen bonds present in the crystal structure. A series of polymer additives, which are Generally Regarded As Safe (GRAS), have been explored to investigate whether they can modulate the halogen bond present in 1 through formation of various non-bonded interactions. Surprisingly, these polymers are found to change crystal morphology, crystal packing while retaining efficacy and bioavailability. The polymer molecular weight is found to play a significant role in crystal morphology modification especially in case of polyethylene glycol (PEG). The formation of new polymorphic forms of 1 and modification of halogen bond has been established using powder X-ray diffraction and IR study, respectively, in case of PEG 4000, PVPK-30, PVA polymers and compound 1 adducts

Giant Asterional Dermoid Cyst with Dermal Sinus; a Case Report

Background: Dermoid cyst with dermal sinus in occipital region is extremely rare occurrence and still rarer in asterion region. We report a case of dermoid cyst with dermal sinus at the asterion probably the second case of world literature and discuss the findings. Case Presentation: 16 year-old female patient with mental retardation and inability to speak since childhood presented with history of progressive increasing swelling since childhood over the left side of occipital region. Local examination and investigations were suggestive of extracranial cystic lesion. The lesion was excised completely. When excision of such lesions is contemplated, careful attention must be paid during exploration. Conclusion: Failure to recognize intracranial communication in such lesions may result in fatal consequences. Pre-operative suspicion of such a connection helped us to identify the underlying defect intra-operatively and facilitated safe excision