[Renal synovialosarcoma: What about pyelic cytology to make a diagnosis?] / Synovialosarcome primitif du rein : si tout était déjà dans les urines pyéliques ?

Synovialosarcoma is a malignant mesenchymal tumor of young adults that occurs in the deep soft tissues, particularly around large joints. When it occurs in more unusual sites, it could present a significant diagnostic challenge. In this case, a 19-year-old girl was treated for a pyloric mass. A pyelic urine cytology performed simultaneously with a pyloric biopsy proved to be a significant element of orientation and perfectly concordant with the histopathological aspect of the pyelic mass after nephrectomy. We report here the first case of renal synovialosarcoma documented in pyelic urine.

Anatomo-Clinical Aspects of Retinoblastoma: A Series of 144 Cases.

Retinoblastoma (RB) is the most common intraocular primary malignancy for infants and young children. The tumor is bilateral in 40% of cases and unilateral in 60% of cases. The hereditary form is due to a germinal mutation in the RB1 tumor suppressor gene. In developed countries, patients treated for RB have excellent survival, but unfortunately in developing countries delays in diagnosis and lack of human and financial resources are responsible for deaths. We conducted a retrospective study of 144 cases of RB in order to evaluate the clinico-pathological aspect of RB for the national reference center of RB in Morocco. Our study highlighted the indispensable collaboration between the clinician and the pathologist. Besides the diagnostic confirmation, the anatomopathological study gives us information on histopronostic risk factors to guide the treatment.