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Updated: Jun 16, 2026

A Lateralized Odor Learning Model in Neonatal Rats for Dissecting Neural Circuitry Underpinning Memory Formation
Published on: August 18, 2014
Proboscis lateralis with ipsilateral sinonasal and olfactory pathway aplasia
Sanjay Vaid1, Darshan Shah, Sudarshan Rawat
1Department of Radiology and Imaging, Grant Medical Foundation, Ruby Hall Clinic, Pune-411001, Maharashtra, India. neelu1964@gmail.com
Abstract:
Proboscis lateralis is a rare craniofacial malformation characterized by absence of nasal cavity on one side with a trunk-like nasal appendage protruding from superomedial portion of the ipsilateral orbit. High-resolution computed tomography and magnetic resonance imaging are extremely useful in evaluating this congenital condition and the wide spectrum of associated anomalies occurring in the surrounding anatomical regions and brain. We present a case of proboscis lateralis in a 2-year-old girl with associated ipsilateral sinonasal aplasia, orbital cyst, absent olfactory bulb and olfactory tract. Absence of ipsilateral olfactory pathway in this rare disorder has been documented on high-resolution computed tomography and magnetic resonance imaging by us for the first time in English medical literature.
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