Introduction and importance Soft tissue chondroma is a rare benign tumor with a predilection for hands and feet. The incidence is only about 1.5% of all benign tumors and this neoplasm is rarely seen in the paediatric population. In this paper we report the case of a 14-year-old boy treated for a soft tissue chondroma located next to the left foot second metatarsal. Case presentation A 14-year-old boy presented with a slowly growing plantar swelling of the left foot. The mass was solid, mobile, measuring 4 cm and located in soft tissues opposite of the left foot second metatarsal. Magnetic resonance imaging was performed and revealed a mass measuring 37 ∗ 27 mm with regular seams, on iso-signal T1 and hyposignal T2 without any skeletal connection. A marginal excision of the mass was performed and the postoperative time was uneventful. Clinical discussion The clinical presentation of soft tissue chondroma is generally not specific which makes the diagnosis mostly challenging. Magnetic resonance imaging is the most performed paraclinical examination that allows a better analysis of the lesion. A surgical excision of the tumor is the treatment of choice. Conclusion Soft tissue as a primary site of chondroma is a rarely reported localisation and this neoplasm should be kept in mind as a possible diagnosis face to any plantar mass in childhood.

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Les malformations kystiques des voies biliaires sont des affections congénitales rares évaluées à environ 1/2 000 000 naissances. C'est une affection qui peut se révéler gravement par une complication notamment l'angiocholite, la pancréatite chronique, cirrhose biliaire progressive, l'hypertension portale ou les lithiases biliaires. Sa perforation spontanée est l'une des rares complications, décrite pour la première fois en 1934 par Weber. Nous rapportant le cas d'un garçon de 18 mois admis pour syndrome sub-occlusif avec une péritonite biliaire. Une échographie a été réalisée montrant un épanchement abdominal avec formation kystique communicante des voies biliaires associée à un épanchement sous capsulaire du foie confirmé par scanner. L'intervention a consisté en une toilette péritonéale avec mise en place d'un drain de redon au niveau de la perforation et un drain sous hépatique sans excision du kyste. Le patient a été réadmis 6 mois après cet incident pour sa cure définitive.

Introduction and importance ovarian tumors and especially mixed ovarian germ cell tumors are rarely seen in the paediatric population. Case presentation we report the case of a 13-year-old girl which was successfully treated for a mixed ovarian germ cell tumor with a favorable evolution. Clinical discussion the incidence of mixed ovarian germ cell tumors, clinical manifestations, histologic distribution and prognosis are predominentely distinct in children and adolescents as compared to adult population. The diagnosis should be suspected in young girls with chronic abdominal pain and palpable swelling of the lower abdomen. Conservative surgery is the first therapeutic procedure that consists of a total resection of the mass with preservation of the reproductive function. Circulating tumor markers have the potential in diagnosis, prognostic stratification and for follow-up. Conclusion mixed ovarian germ cell tumors are uncommen in children. Their management must be multidisciplinary and conservative surgery by laparotomy represent the standard of care.

Post-traumatic vascular lesions of the lower extremity in children are uncommon and present some particularities in their management in comparison to those that occur in adults. Here, we report the case of an 11-year-old boy who presented with a diaphyseal fracture of the right femur associated with an injury of the homolateral superficial femoral artery after blunt trauma of the lower limb. The bone and the arterial injuries were surgically and successfully treated by an elastic stable centromedullary nailing and a venous bypass, respectively, with a good clinical and radiological evolution. The management of vascular injuries in childhood can be challenging and requires some special measures to avoid undesirable complications. Functional prognosis is generally described to be good if a rapid and adequate treatment is performed.