2019, Number 2
Volumetric arcotherapy for adjuvant treatment in castleman unicentric disease: report of a case
Moo-Chablé P
Language: Spanish
References: 6
Page: 159-161
PDF size: 205.89 Kb.
ABSTRACT
Introduction: Castleman’s disease is rare, its etiology and prevalence are unknown, it is estimated to be less than 1/100,000; causes an angiofollicular lymphoid hyperplasia and there are two forms: localized or unicentric (more frequent) and multicentric; surgical resection being the standard of treatment in Unicentric Castleman’s Disease (ECU); however, when it is unresectable or with incomplete resection, adjuvant radiotherapy is an option to achieve local control. Case report: Male, 27 years old, previously healthy, started in June 2015 with a navel tumor, not painful, with progressive growth up to 7 cm. The diagnostic CT reported pelvic tumor of 10.4 cm dependent on left psoas muscle; the biopsy reported «Castlemanoides changes», performing incomplete resection of the tumor (03/11/2016) because it was attached to inferior vena cava and left common iliac vein; pathology confirmed «Castleman’s disease», variant hyalinovascular, CD20 +. He started adjuvant radiotherapy, with VMAT technique (volumetric Arcotherapy), 40 Gy dose in 20 fractions, which ended 03/03/17. Results: PTV coverage of 99% was achieved; average dose to rectum, bladder and bulb of 8Gy, 9.25Gy and 0.53Gy respectively. At the end of the treatment, the patient presented radioepitelitis RTOG 1, which resolved at one month; no acute bladder or rectal toxicity. One year follow-up without disease recurrence. Conclusions: Adjuvant radiotherapy with VMAT technique is an appropriate option for the ECU with incomplete resection, making it possible to deposit high doses of radiation with minimal complications and with a good control rate.REFERENCES