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Proboscis lateralis: a report of two cases
Kamal-Eldin Ahmed Abou-Elhamd1
1Sohag Faculty of Medicine, South Valley University, Sohag, Egypt. kamal375@yahoo.com
International Journal of Pediatric Otorhinolaryngology
|March 12, 2004
Summary
Proboscis Lateralis (PL) is a rare congenital nasal anomaly where one nasal cavity is replaced by a skin tube. This case report details two instances of this unusual condition.
Area of Science:
- Medical Genetics
- Developmental Biology
- Otorhinolaryngology
Background:
- Proboscis Lateralis (PL) is a rare congenital nasal anomaly presenting as a significant facial deformity.
- It is characterized by the replacement of the affected nasal cavity with a skin and soft tissue tube extending to the inner canthus.
Observation:
- This report presents two cases of Proboscis Lateralis, one affecting the right side and the other the left.
- The anomaly can occur sporadically or in conjunction with other congenital defects.
Findings:
- In PL, one nasal cavity remains normal, while the other is replaced by the characteristic proboscis.
- Associated developmental failures often include paranasal sinuses and the nasolacrimal duct.
Implications:
- Understanding the embryological basis, such as imperfect fusion of lateral nasal and maxillary processes, is crucial for diagnosis.
- Early recognition and management of Proboscis Lateralis are important for affected individuals.

