Faculty Collaboration Database

Frequency and Clinical Course of Residual Orbital Masses After Treatment of Orbital Rhabdomyosarcoma. Am J Ophthalmol 2022 Feb;234:28-36

Date

07/20/2021

Pubmed ID

34280364

DOI

10.1016/j.ajo.2021.06.035

Scopus ID

2-s2.0-85118831609 (requires institutional sign-in at Scopus site)   3 Citations

Abstract

PURPOSE: To evaluate the frequency and clinical course of residual orbital masses on imaging studies after multimodality treatment for orbital rhabdomyosarcoma.

DESIGN: Retrospective case series.

METHODS: We reviewed records of patients with primary orbital rhabdomyosarcoma who underwent chemotherapy and radiotherapy after surgical biopsy or debulking at 4 US centers during 1998-2019. Demographics, histologic subtype, tumor response 12 weeks after chemotherapy initiation and after completion of all treatment, and imaging findings were analyzed.

RESULTS: Thirty-two patients met inclusion criteria. Twenty-two were male, and 30 were younger than 18 years. Histologic subtype was embryonal in 22 patients, alveolar in 8, and mixed embryonal/alveolar in 2. Median follow-up time was 46 months (range, 4.9-199 months). Two patients died. Twenty-seven patients had reliable end-of-treatment imaging findings, of whom 9 had a residual mass. Three residual masses disappeared spontaneously (by 4, 32, and 53 months), 2 remained at last contact, at 2 and 7 years of follow-up, and 3 were excised; 1 progressed and underwent an exenteration. Complete response at 12 weeks was associated with complete response at the end of treatment (P < .001). Patients with T1 or T2 tumor at presentation were more likely to have complete response at last contact than were those with T3 or T4 tumor (P < .05). Biopsy type (incisional or excisional) was not associated with response to treatment at any time point.

CONCLUSION: A residual orbital mass on imaging may be present after multimodality treatment in approximately one-third of patients. Resolution without biopsy or excision varied from months to years.

Author List

Sobel RK, Ford JR, Dong W, Shriver E, Griepentrog GJ, Debnam JM, Esmaeli B

Author

Gregory J. Griepentrog MD Associate Professor in the Ophthalmology and Visual Sciences department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Combined Modality Therapy
Humans
Male
Orbital Neoplasms
Remission Induction
Retrospective Studies
Rhabdomyosarcoma