Ultrasonography in Children With Congenital Pyriform Sinus Fistula: Analysis of 31 Cases.

Objectives: Congenital pyriform sinus fistula (CPSF) is a rare disease that can be easily misdiagnosed. This study investigates the value of ultrasonography in the early diagnosis and treatment of CPSF in children.

Methods: Clinical features and ultrasonography images of 31 CPSF pediatric patients confirmed by operation were retrospectively analyzed, different sonographic features during the infection period and the quiescence period were summarized and the consistency test of ultrasonic recognition and diagnosis between observers was conducted.

Diagnosis of neonatal neurofibromatosis type 1: a case report and review of the literature.

Background: Neurofibromatosis Type 1 (NF1) is a rare genetic disorder characterized with the development of multiple benign tumors on the nerves and skin.

Case Presentation: This report described a neonatal case with a large mass observed on the left side of the maxillofacial and cervical region at birth. Meantime, multiple cafe-au-lait macules (CALMs) were seen on the trunk and both lower extremities.

Ultrasonographic analysis of Langerhans cell histiocytosis in children: a report of 55 cases.

Objective: To explore the value of ultrasonography in the diagnosis and treatment of Langerhans cell histiocytosis (LCH) in children.

Method: The clinical and imaging features of 55 children with pathologically confirmed LCH were retrospectively analyzed.

Results: Thirteen patients had bone LCH and 42 had multisystem LCH.