ESTRO 2024 - Abstract Book

S1309

Clinical - Head & neck

ESTRO 2024

5. Jaarsma-Coes MG, Ferreira TA, Marinkovic M, Vu THK, van Vught L, van Haren GR, et al. Comparison of magnetic resonance imaging – based and conventional measurements for proton beam therapy of uveal melanoma. Ophthalmology Retina. 2023;7(2):178 – 88. doi:10.1016/j.oret.2022.06.019 6. Klaassen L, Jaarsma-Coes MG, Verbist BM, Vu THK, Marinkovic M, Rasch CRN, et al. Automatic Three-Dimensional Magnetic Resonance-based measurements of tumour prominence and basal diameter for treatment planning of uveal melanoma. Physics and Imaging in Radiation Oncology. 2022;7(24):102-110. doi: 10.1016/j.phro.2022.11.001

1577

Digital Poster

Impact of prognostic factors on clinical outcomes in oral cavity cancers: Real world data from India

Imtiaz Ahmed 1 , Sapna Krishnamurthy 1 , Kumar Vinchurkar 2 , Mahesh Kalloli 2 , Rohan Bhise 3 , Raghavendra Sagar 1 , Adarsh Sanikop 4 1 J.N Medical College, Radiation Oncology, Belagavi, India. 2 J.N Medical College, Surgical Oncology, Belagavi, India. 3 J.N Medical College, Medical Oncology, Belagavi, India. 4 J.N Medical College, Pathology, Belagavi, India

Purpose/Objective:

Oral cavity squamous cell cancers (OCSCC) are the second most common cancers in India. Surgery is the main stay of treatment. Numerous clinico-pathological factors play a significant role in determining the need for adjuvant treatment and the ultimate clinical outcomes.

Material/Methods:

We retrospectively evaluated the data of 256 patients with OCSCC treated with curative intent surgery from January 2017 to December 2019 at our institute. The demographic, disease and treatment related parameters, patterns of recurrence and survival outcomes were analyzed using SPSS.

Results:

Among 256 patients, the median age at presentation was 50.9 years (range 26-79). 204(80%) were males, 125(49%) patients reported to have addiction to tobacco and 53(21%) patients had co-morbid conditions. Primary site of tumour was gingivo-buccal-complex in 168(66%) patients, 210(82%) patients underwent modified neck dissection (MND). Mean T size was 2.9cm (range0.5-6.5), mean DOI was 9.5mm (range 1-40), 63(25%) of patients had grade 3 tumour. PNI and LVSI was positive in 156(61%) and 162(63%) patients respectively. Mean nearest and farthest resected margins were 5.8mm (range 0-25) and 15mm (range 2.5-45) respectively. 15(6%) patients had positive margin and 53(21%) patients had close margin. Bone and skin involvement were seen in 38(15%) and 9(3.5%) patients