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Pai syndrome — Clinical Guidelines

Overview

Pai syndrome is a rare congenital malformation characterized by hypertelorism, midline cleft lip or palate, facial polyps, ocular anomalies, and pericallosal lipomas 1 2 3 4.

Diagnosis

Key Diagnostic Criteria:

- Median cleft lip or palate - Cutaneous nasal or facial polyps - Pericallosal lipoma on imaging (MRI, CT) - Ocular anomalies (including dermoids, conjunctival lipomas) - Hypertelorism

Recommended Tests:

- Cranial ultrasound and MRI for pericallosal lipoma and brain anomalies 1 4 - Ophthalmologic examination to assess ocular abnormalities 1 - Chromosomal analysis to rule out chromosomal abnormalities 3

Management

First-Line Treatments:

- Surgical correction for cleft lip/palate and other structural anomalies as needed 3

Adjunctive Treatments:

- Regular ophthalmologic follow-up for ocular anomalies 1 4 - Developmental support and monitoring for cognitive and motor milestones 3 4

Special Populations

Pregnancy:

- Prenatal imaging (ultrasound, MRI) can aid in early detection and parental counseling 2

Pediatrics:

- Early multidisciplinary care including pediatric surgery, ophthalmology, and developmental specialists 1 3 4

Comorbidities:

- Neurological monitoring despite normal findings to detect any potential late-onset issues 4

Key Recommendations

Prenatal imaging should be considered to detect pericallosal lipoma and guide parental counseling regarding Pai syndrome (Evidence: Moderate 2).

Comprehensive ophthalmologic assessment is crucial due to the variability and significance of ocular anomalies in Pai syndrome (Evidence: Weak 1 4).

Multidisciplinary management involving surgical, developmental, and ophthalmologic specialists is essential for optimal outcomes in pediatric patients (Evidence: Expert opinion).

References

1 Tormey P, Bilic Cace I, Boyle MA. Ocular dermoid in Pai Syndrome: A review. European journal of medical genetics 2017. link 2 Chousta A, Ville D, James I, Foray P, Bisch C, Depardon P et al.. Pericallosal lipoma associated with Pai syndrome: prenatal imaging findings. Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology 2008. link 3 Szeto C, Tewfik TL, Jewer D, Rideout A. Pai syndrome (median cleft palate, cutaneous nasal polyp, and midline lipoma of the corpus callosum): a case report and literature review. International journal of pediatric otorhinolaryngology 2005. link 4 Mishima K, Mori Y, Minami K, Sakuda M, Sugahara T. A case of Pai syndrome. Plastic and reconstructive surgery 1999. link 5 Rudnik-Schöneborn S, Zerres K. A further patient with Pai syndrome with autosomal dominant inheritance?. Journal of medical genetics 1994. link

Pai syndrome