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1.
Radiol Case Rep ; 19(9): 3610-3612, 2024 Sep.
Article in English | MEDLINE | ID: mdl-38983304

ABSTRACT

Medulloblastoma is a frequent and aggressive pediatric tumor. It causes intracranial hypertension, necessitating ventriculoperitoneal shunting with surgical resection. Intraperitoneal metastases are rare and result from the migration of neoplastic cells through the shunt and into the peritoneal cavity. This metastatic form involving the ventriculoperitoneal shunt has a poor prognosis, making therapeutic management even more difficult. We report the case of a 14-year-old boy with a history of medulloblastoma of the cerebellum who was initially treated with complete resection of the tumor with placement of a ventriculoperitoneal shunt, followed by radiotherapy and chemotherapy, with good progression until he presented to the emergency department with acute abdominal symptoms. Imaging revealed multiple peritoneal masses with intra- and retroperitoneal lymphadenopathies. An ultrasound-guided biopsy revealed a metastatic medulloblastoma in the peritoneal cavity, and the patient underwent chemotherapy. The placement of the ventriculoperitoneal shunt in the tumor dissemination is therefore to blame.

3.
Radiol Case Rep ; 17(12): 4809-4813, 2022 Dec.
Article in English | MEDLINE | ID: mdl-36238207

ABSTRACT

Extraskeletal Ewing sarcoma is a rare tumor mainly affecting young people, of poor prognosis with very high mortality rates especially in metastatic forms. It can affect different locations, without specific clinical signs, which delays the diagnosis. Imaging plays an important role for diagnosis, staging, preoperative assessment and surveillance. The diagnosis should be set early to a better management. We report a case of a 30-year-old man with a large extraskeletal Ewing sarcoma of the left thigh. The patient was initially treated with chemotherapy. Unfortunately, the tumor has increased in size making surgery impossible. The patient ultimately died of pulmonary metastases.

4.
Radiol Case Rep ; 17(11): 4079-4082, 2022 Nov.
Article in English | MEDLINE | ID: mdl-36065246

ABSTRACT

Aneurysmal bone cyst (ABC) is a benign bone tumor affecting mainly children and young adults. It occurs in the metaphysis of the long bones. The scapula is a very rare location. Imaging may be highly suggestive of ABC in cases of an osteolytic, expansive, and hemorrhagic lesion with fluid-fluid levels and thin septa. The diagnosis must systematically be confirmed by performing a biopsy, in order to adopt the best therapeutic strategy. There are several therapeutic means, but wide resection remains the gold standard. The evolution is very variable and can go from spontaneous healing to recurrence with the destruction of the bone. We report a rare case of aneurysmal bone cyst of the scapula in a young patient.

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