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REVIEW ARTICLE
Year : 2013  |  Volume : 9  |  Issue : 4  |  Page : 574-582

Literature review with PGI guidelines for delineation of clinical target volume for intact carcinoma cervix


Department of Radiotherapy, PGIMER, Chandigarh, India

Correspondence Address:
Firuza D Patel
Department of Radiotherapy, Cobalt Block, B Block, Ground floor, Nehru Hospital, PGIMER, Sector 12, Chandigarh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0973-1482.126450

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For definitive treatment of carcinoma cervix with conformal radiation techniques, accurate target delineation is vitally important, yet a consensus definition of clinical target volume (CTV) remains variable within the literature. The aim of the present article is to review the guidelines for CTV delineation published in the literature and to present the guidelines practiced at our institute. For this a literature pub med/medline search was performed from January 2000 to December 2012 and reviewed to identify published articles on guidelines for CTV primary and pelvic lymph node (LN) delineation for carcinoma cervix. Taking into consideration the traditional bony landmark based fields for treating cancer cervix, the knowledge of the patterns of disease spread and recurrence and the findings from imaging studies identifying typical anatomic distributions of areas at risk of harbouring subclinical disease, the differences in various guidelines have been analyzed and discussed. The CTV in cervical cancer consists of the CTV nodal and CTV primary. In all the published guidelines, CTV nodal consists of common iliac, external iliac, internal iliac, pre-sacral and obturator group of lymph nodes, and CTV primary consists of the gross tumor volume, uterine cervix, uterine corpus, parametrium, upper third of vagina and uterosacral ligaments. The various guidelines differ however, in the definition for these individual component structures. This is the first report to provide the complete set of guidelines for delineating both the CTV primary and CTV nodal in combination.


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