RESUMEN
Cytogenetic examination of a case of splenic hamartoma led to the discovery of a clonal population with the karyotype 47 approximately 58,XX,+X,+4,+5,+5,+6,+10,+12,+14,der(16)dic(16;21)(p13.3;p11.2), dic(16;21)del(16)(q11.1),+17,+19,+20,-21. This finding is indicative of a neoplastic, not hamartomatous, origin for this lesion.
Asunto(s)
Aneuploidia , Cromosomas Humanos Par 21 , Hamartoma/genética , Monosomía , Neoplasias del Bazo/genética , Anciano , Femenino , Humanos , Cariotipificación , Neoplasias del Bazo/patologíaRESUMEN
The first case of acute promyelocytic leukemia presenting as a solitary testicular mass (myeloid sarcoma) that relapsed in the contralateral testicle is described. The neoplastic cells strongly expressed chloroacetate esterase, myeloperoxidase, CD33, CD43, and weakly, CD117. The presence of many azurophil granules and Auer rods was detected by electron microscopy. Translocation (15;17)(q22;q21.1) was revealed by cytogenetics and was verified by fluorescence in situ hybridization. Contralateral testicle is a favorite site for recurrence in a subset of testicular myeloid sarcomas. Subclassification of all cases of myeloid sarcoma ought to be attempted.