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Background: Lungs are the second most common site for hydatid disease after the liver. Giant hydatid cyst (GHC) of the lung is a special clinical entity in children and is related to higher lung tissue elasticity., Aim: To compare clinical and imaging features, types of surgical interventions, and postoperative complications in pulmonary GHC and non-giant pulmonary hydatid cysts (NGHC) in children., Methods: A retrospective study was undertaken. The data analyzed were taken from medical records of children with pulmonary hydatid cyst (PHC) hospitalized in a pulmonary department in Tunisia between January 2004 and February 2019. Cysts were divided according to their size into GHC ( ≥10cm) and NGHC (<10cm)., Results: In the study period, 108 PHC were recorded in 84 children. GHC accounted for 21 (19.4%) and NGHC for 87 (80.6%). The median of age of the children was 11 years (IQR 1-9, IQR 3-14) and the mean age was 11.6 years (10.5 in GHC vs. 11.4 years in NGHC). Hemoptysis was found in 25% of the GHC group vs. 48.4% of the NGHC group (P=0.27). Cysts were multiple in 23.8% of cases and predominated in the right in 64.3% of cases and in the inferior lobes in 71.4% of the cases. GHCs were less frequently complicated (60% vs. 78.1% in NGHC, P≤0.11), although not significantly. Parenchymal resection was realized in 50% of GHC vs. 18.8% of NGHC (P=0.006). No significant difference was found in postoperative complications between the two groups and there was no recurrence in either group., Conclusion: GHC is a special clinical entity in children. It requires major surgery with parenchymal resection, and therefore early diagnostic and therapeutic management is warranted., (Copyright © 2021 French Society of Pediatrics. Published by Elsevier Masson SAS. All rights reserved.)

The endoscopic approach is increasingly used for surgical treatment of pituitary adenomas. Early outcome is generally excellent, especially in experienced hands, and particularly for non invasive tumors. Treatment of these patients requires multidisciplinary collaboration among endocrinologists, radiologists and neurosurgeons.

Posterior épidural migration of a lumbar disc herniation is rare. Clinical symptoms frequently indicate severe radicular compression. Cauda equina syndrome is very unusual. Three cases of cauda equina syndrome from posterior epidural migration of a lumbar disc herniation along with a review of the literature are presented to illustrate the Imaging features of this entity and related diagnostic difficulties. Finaly, early surgical management is the treatment of choice for optimal symptomatic recovery.