4. Epicentre along the left nasal fossa with more of the longitudinal than horizontal extension. MERCURY IMAGING INSTITUTE SCO 172-173 SEC 9C CHANDIGARH MERCURY IMAGING CENTRE SCO 16-17 SEC 20D CHANDIGARH
5. Esthesioblastoma a brief.............. Esthesioneuroblastomas are histologically similar to adrenal or sympathetic ganglionicneuroblastomas and retinoblastomas. Originally descried by Bergen et al. in 1924 as esthesioneuroepitheliomaolfactif . Incidence peaks once in 11-20 years of age group and again in 50-60 years age group :However, age of these patients ranges from 3-88 years. It occurs equally in men and women. Synonyms include olfactory esthesioneuroma, neuroesthesioma and olfactory neurocystoma.
10. T2w SEQUENCE – large macrocyst with intermediate signal core contents in the intracranial part of the Mass . Multicompartmentinvolvement extending from the nasal cavity to sinuses to intracranial compartment. ESTHESIONEUROBLASTOMAIS ALMOST ALWAYS UNILATERAL . ONLY NEGLECTED CASES MAY PRESENT AS BILATERAL NASAL FOSSA MASSES.
11. T2w sequence – Macrocyst with variegated intermediate signal core contents . Appreciate the buckling of the adjacent brain parenchyma
12. No inversion of the cystic component of the mass lesion on FLAIR sequence.
15. No pathological restriction of diffusion . Interspread bloom on GRE sequence suggestive of haemorrhage / calcification
16. Points of interest.................. Multicompartment involvement. Usually unilateral lesion. Longitudinal pattern of extension. Macro/ microcysts along the periphery of the intracranial part of the lesion.