OBJECTIVE: To explore the clinical characteristics and genetic variant in a premature infant with Netherton syndrome (NS). METHODS: A neonate with NS caused by variants of SPINK5 gene diagnosed at the Children's Hospital Affiliated to Zhejiang University School of Medicine in March 2020 was selected as the study subject. Clinical data and family history were collected. Peripheral blood samples (2 mL each) were obtained from the child and her parents for whole-exome sequencing (WES). Candidate variants were subjected to pathogenicity classification and deleteriousness evaluation. This study has been approved by the Medical Ethics Committee of the Hospital (Ethics No. 2024-IRB-0251-P-01). RESULTS: The infant was born prematurely at 35⁺³ weeks due to "premature rupture of membranes for 4 hours" and exhibited generalized skin peeling, with meconium-stained amniotic fluid resembling bean curd residue. The condition improved with supportive treatments such as anti-infection and moisturizing therapy, though periodic hair loss had persisted. No similar case was reported by family history. WES has revealed a heterozygous c.1130delG (p.G377Efs*127) variant in exon 14 of the SPINK5 gene, which was inherited from her mother, and deletion of exons 1 ~ 33 of the SPINK5 gene, which was inherited from her father. CONCLUSION This case of NS presented with intrauterine onset in a preterm infant, which has not been previously reported. The identification of c.1130delG (p.G377Efs*127) variant has expanded the mutation spectrum of the SPINK5 gene.
Humans ; Serine Peptidase Inhibitor Kazal-Type 5/genetics* ; Netherton Syndrome/genetics* ; Female ; Infant, Newborn ; Infant, Premature ; Mutation ; Exome Sequencing ; Male

Netherton Syndrome (NS) is characterized by a triad of congenital ichthyosiform erythroderma, trichorrhexis invaginata, and atopic diathesis. Diagnosis of NS poses a challenge due to its variable presentation and overlap with other dermatological conditions. Herein, we report a case of NS in a sibling pair, underscoring the challenges in diagnosis and genetic implications of this condition.

We present a case of an 8-year-old female and a 7-year-old male sibling pair, with Netherton Syndrome, who initially presented with atopic dermatitis and erythroderma without hair shaft abnormalities. Further investigation and genetic testing revealed homogeneous SPINK5 gene mutations in both patients, leading to the diagnosis of NS.

Early recognition and diagnosis of Netherton Syndrome are essential for proper management. In patients with early-onset atopic dermatitis resistant to treatment and recurrent erythroderma, further investigation is needed to exclude other diagnoses like Netherton Syndrome.

Objective: To present a rare case of Netherton Syndrome (NS) in a Filipino child. Case: This is a case of an 11-year-old girl with elevated immunoglobulin E, trichorrhexis nodosa, and ichthyosis linearis circumflexa. She had dry skin with fine scaling at birth with recurrent pruritic, erythematous papules coalescing to plaques mainly on the face and extensors. The skin dryness turned to generalized redness with fine scaling, and the skin started getting tight. She could no longer completely extend both knees, but she was still able to walk. She also started having difficulty closing both eyes. She developed migratory serpiginous erythematous plaques with peripheral double-edged scaling. At six years old, she developed ulcers in the scalp, trunk, and extremities, which resulted in admission to our institution. She was managed for multiple skin infections, pneumonia, sepsis, seizure, severe malnutrition, joint contracture, atopy, and bilateral cicatricial ectropion. Conclusion Management of NS remains challenging. Common management options include emollients, topical corticosteroids, calcineurin, and protease inhibitor, and phototherapy while newer ones that need further validation include intravenous immunoglobulins and biologics such as infliximab. However, until specific recommendations are made, overall management for NS remains challenging. Regular multidisciplinary monitoring of the manifestations of NS is central to its management.
Netherton syndrome ; ichthyosis ; trichorrhexis nodosa ; atopy

Netherton syndrome (NS) is an autosomal recessive genodermatosis characterized by cutaneous and systemic complications (recurrent infections, dehydration, and sepsis). This highlights the urgency of making an accurate diagnosis, especially in infants and children. However, it is important to note that the recognition of NS is usually delayed due to its rarity and similarity to cutaneous disorders with atopiform, erythrodermic, and ichthyosiform presentations. We report a case of a 1-year-old female who was previously diagnosed with a case of infantile psoriasis and was subsequently treated with topical emollients. However, after months of surveillance, the patient developed feeding problems, failure to thrive, recurrent diarrhea, upper respiratory tract, and gastrointestinal infection, leading to repeated hospitalizations. The patient then underwent further clinical examinations and laboratory analysis, which revealed abnormal hair shaft findings, elevated immunoglobulin (Ig) E levels, and normal chromosomal analysis. Multispecialty referrals with other services were done to address the current problems and ensure holistic care for the patient. On her last admission, the patient was given three doses of intravenous Ig therapy with noted improvement in lesion presentation without any systemic symptoms.
Netherton Syndrome

No abstract available.
Netherton Syndrome*

Netherton Syndrome is a rare autosomal recessive inherited disorder, characterized by triad of congenital ichthyosiform dermatosis, trichorrhexis invaginata and atopy diathesis. It has been found to be due to mutations in SPINK5, a gene encoding LEKTI (lympho-epithelial Kazal-type related inhibitor). LEKTI is a serine proteinase inhibitor that is expressed in epithelial and lymphoid tissues, and may be important in the keratinocyte terminal differentiation and T and B cell maturation. We herein report two cases of Netherton Syndrome in sisters who had ichthyosis linearis circumflexa, trichorrhexis invaginata and atropic dermatitis.
Dermatitis ; Disease Susceptibility ; Genes, vif ; Humans ; Ichthyosis ; Keratinocytes ; Lymphoid Tissue ; Netherton Syndrome* ; Serine Proteases ; Siblings* ; Skin Diseases