Author(s): Dias, Andre Fontes ; Dvindenko, Eugenia ; Santos, Filipa ; Cabrera, Rafael
Date: 2023
Persistent ID: http://hdl.handle.net/10362/145980
Origin: Repositório Institucional da UNL
Subject(s): spermatocytic tumour; metastasis; rhabdomyosarcoma; sarcomatous dedifferentiation; sarcomatoid spermatocytic tumour
Spermatocytic tumour (ST) accounts for 1% of testicular germ cell tumours. It is an indolent neoplasm with good prognosis. In approximately 6% of STs, sarcomatous dedifferentiation may occur, portending an aggressive behaviour and representing a significant diagnostic challenge that can lead to its misdiagnosis. Herein, we report the clinicopathological features of a patient with a sarcomatoid spermatocytic tumor, initially diagnosed as mixed germ cell tumour, who was referred to our institution with lung metastases mainly composed of rhabdomyosarcomatous elements. This case report illustrates the importance of recognizing this entity for adequate management of these patients.
