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  1. Article ; Online: Malignant peripheral nerve sheath tumor of mesocolon

    Sakshi Rana / Divya Khosla / Kannan Periasamy / Rakesh Kapoor

    Journal of Radiation and Cancer Research, Vol 12, Iss 3, Pp 126-

    A rare case

    2021  Volume 130

    Abstract: Malignant peripheral nerve sheath tumor (MPNST) is a soft-tissue sarcoma arising from or differentiating toward peripheral nerve sheath cells. It accounts for 5%–10% of soft-tissue sarcomas. The most common sites of origin are proximal portion of upper, ... ...

    Abstract Malignant peripheral nerve sheath tumor (MPNST) is a soft-tissue sarcoma arising from or differentiating toward peripheral nerve sheath cells. It accounts for 5%–10% of soft-tissue sarcomas. The most common sites of origin are proximal portion of upper, lower limbs and trunk. MPNST arising from the nerve plexus of gastrointestinal tract is extremely rare, and only very few cases have been reported in literature. In this report, we are describing a case of MPNST from mesocolon. An 82-year-old male presented to hospital with complaint of pain abdomen and feeling of lump on the left side of lower abdomen for the past 2 months. On contrast-enhanced computed tomography (CECT) of chest and abdomen, there was 15 cm × 10 cm mass palpable in left lumbar region without ascites and multiple random subpleural nodules in bilateral lung. Intraoperatively, there was 15 cm × 10 cm hard irregular mass in left paracolic gutter infiltrating mesentry of descending colon. Left hemicolectomy was performed with end-to-end anastomosis. Histopathological examination revealed malignant peripheral nerve sheath tumor, and on immunohistochemistry, tumor cells were positive for S-100 and negative for C-kit and Smooth Muscle Actin (SMA). The patient was started on tamoxifen in view of old age and lung metastasis. The patient is on follow-up from 2 years with stable disease. In this report, we highlight the possibility of clinical differential diagnosis of MPNST arising from mesocolon should be kept while dealing with mesenchymal tumors of colon. Radical surgery with negative margins is required for achieving palliation, and adjuvant tamoxifen could offer advantage in patient who cannot tolerate chemotherapy.
    Keywords chemotherapy ; colon ; malignant peripheral nerve sheath tumor ; Medical physics. Medical radiology. Nuclear medicine ; R895-920 ; Neoplasms. Tumors. Oncology. Including cancer and carcinogens ; RC254-282
    Subject code 610
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher Wolters Kluwer Medknow Publications
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: The patient-reported outcome measures in oropharyngeal, laryngeal and hypopharyngeal cancer patients treated with Volumetric Modulated Arc based simultaneous integrated boost radiotherapy

    Thiraviyam Elumalai / Ashutosh Mukherji / N. Vijayaprabhu / Kannan Periasamy / Amdedkar Yadala

    Technical Innovations & Patient Support in Radiation Oncology, Vol 18, Iss , Pp 1-

    2021  Volume 7

    Abstract: Objective: To assess the change in the quality of life (QOL) in head and neck cancer patients treated with Simultaneous Integrated Boost (SIB) by Volumetric Modulated Arc Therapy (VMAT) technique. Methods: Thirty patients with localised head and neck ... ...

    Abstract Objective: To assess the change in the quality of life (QOL) in head and neck cancer patients treated with Simultaneous Integrated Boost (SIB) by Volumetric Modulated Arc Therapy (VMAT) technique. Methods: Thirty patients with localised head and neck cancers (Stage II- IVa) were treated with VMAT and SIB technique. The three-dose levels prescribed were 68.2 Gy at 2.2 Gy/fraction, 62 Gy at 2 Gy/fraction and 55.8 Gy at 1.8 Gy/fraction to the high, intermediate and low-risk volumes respectively. Concurrent chemotherapy with cisplatin 100 mg/m2 was administered once in three weeks. Acute toxicities were evaluated and scored according to the RTOG grading system. Quality of life (QOL) was assessed using European Organization of Research and Treatment of Cancer (EORTC) QLQC30 and HN35 questionnaires at baseline and in three instances (immediately, one month and three months after the radiotherapy). Results: Out of the total 30, 80% patients had a complete response (CR) at the median follow up of 12 months, while three patients died because of progression, and the remaining 3 had stable disease. All planning objectives were achieved for organs at risk and planning target volume(PTV). There was a statiscally significant(p value < 0.001) reduction in global quality of life scores at the end of treatment when compared to baseline scores, but by three months, there was the return in the QOL scores in most scales similar to the baseline value. Conclusion: VMAT based Simultaneous boost radiotherapy is a feasible and safe strategy in terms of toxicity profile with an acceptable transient change in the quality of life and allows a faster return to baseline quality of life.
    Keywords Head and neck cancers ; Rapid Arc in head and cancers ; Simultaneous boost radiotherapy ; VMAT ; Altered fractionation ; Quality of life ; Medical physics. Medical radiology. Nuclear medicine ; R895-920 ; Neoplasms. Tumors. Oncology. Including cancer and carcinogens ; RC254-282
    Subject code 616
    Language English
    Publishing date 2021-06-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Dosimetric comparison between interstitial brachytherapy and volumetric-modulated arc therapy for tumor bed boost in breast cancer

    Kannan Periasamy / Gunaseelan Karunanithi / Shamsudheen Cholayil / Kadambari Dharanipragada / Vijayprabhu Neelakanadan

    Journal of Contemporary Brachytherapy, Vol 13, Iss 3, Pp 302-

    2021  Volume 309

    Keywords breast neoplasms ; radiotherapy ; volumetric-modulated arc therapy ; interstitial brachytherapy ; Medicine ; R
    Language English
    Publishing date 2021-05-01T00:00:00Z
    Publisher Termedia Publishing House
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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