TY - JOUR
T1 - Thoracic Sertoli–Leydig cell tumor
T2 - An alternative type of pleuropulmonary blastoma associated with DICER1 variation
AU - Terry, William
AU - Carlisle, Erica M.
AU - Mallinger, Paige
AU - Nelson, Alexander T.
AU - Gordon, David
AU - Messinger, Yoav H.
AU - Field, Amanda
AU - Dehner, Louis P.
AU - Hill, D. Ashley
AU - Schultz, Kris Ann P.
N1 - Publisher Copyright:
© 2021 Wiley Periodicals LLC
PY - 2021/11
Y1 - 2021/11
N2 - A 2-year-old boy presented with a large cystic and solid chest mass arising from the lung, radiographically consistent with pleuropulmonary blastoma (PPB). He underwent right lower lobectomy with resection of a well-circumscribed, mixed solid and cystic mass. The solid areas were composed of cords and nests of tumor cells in the myxoid stroma and retiform foci whose pathologic and immunophenotypic findings were consistent with a sex cord-stromal tumor with features of a Sertoli–Leydig cell tumor. Tumor testing showed a pathogenic variant in the DICER1 RNase IIIb hotspot domain. Family history was suggestive of DICER1 germline pathogenic DICER1 variation in absence of a detectable germline variant. He received 12 cycles of chemotherapy with ifosfamide, vincristine, dactinomycin and doxorubicin (IVADo) and surgery with complete response. One year after completion of chemotherapy, imaging studies showed concern for recurrence confirmed by thorascopic biopsy of a pleural-based mass. He is currently receiving cisplatin-based chemotherapy with reduction in tumor size. Review of the literature showed no similar cases; however, review of our pathology files revealed a single similar case of anterior mediastinal Sertoli cell tumor in a 3-year-old girl.
AB - A 2-year-old boy presented with a large cystic and solid chest mass arising from the lung, radiographically consistent with pleuropulmonary blastoma (PPB). He underwent right lower lobectomy with resection of a well-circumscribed, mixed solid and cystic mass. The solid areas were composed of cords and nests of tumor cells in the myxoid stroma and retiform foci whose pathologic and immunophenotypic findings were consistent with a sex cord-stromal tumor with features of a Sertoli–Leydig cell tumor. Tumor testing showed a pathogenic variant in the DICER1 RNase IIIb hotspot domain. Family history was suggestive of DICER1 germline pathogenic DICER1 variation in absence of a detectable germline variant. He received 12 cycles of chemotherapy with ifosfamide, vincristine, dactinomycin and doxorubicin (IVADo) and surgery with complete response. One year after completion of chemotherapy, imaging studies showed concern for recurrence confirmed by thorascopic biopsy of a pleural-based mass. He is currently receiving cisplatin-based chemotherapy with reduction in tumor size. Review of the literature showed no similar cases; however, review of our pathology files revealed a single similar case of anterior mediastinal Sertoli cell tumor in a 3-year-old girl.
KW - DICER1
KW - Sertoli–Leydig cell tumor
KW - pleuropulmonary blastoma
KW - thoracic tumor
UR - http://www.scopus.com/inward/record.url?scp=85112803496&partnerID=8YFLogxK
U2 - 10.1002/pbc.29284
DO - 10.1002/pbc.29284
M3 - Article
C2 - 34398502
AN - SCOPUS:85112803496
SN - 1545-5009
VL - 68
JO - Pediatric Blood and Cancer
JF - Pediatric Blood and Cancer
IS - 11
M1 - e29284
ER -