6 research outputs found
Carotid sparing intensity-modulated radiotherapy in early glottic cancers: A case of Maslow′s hammer?
No full textTumor-related denervation pseudohypertrophy of the tongue: A clinical entity in disguise!
No full textIsolated hypoglossal nerve palsy in the base of tongue carcinomas is seldom noticed. The clinical signs are subtle in early stageand can often be overlooked. There may be slight tongue deviation to the affected side, and the tongue feels soft and edematouson careful palpation. There may be associated enlargement of the affected side of the tongue known as “pseudo hypertrophy” dueto denervation of its motor supply. Contrast-enhanced magnetic resonance imaging is the gold standard of diagnosis which showsdiffuse fatty changes in the affected half of tongue with the preservation of architecture. Clinicians need to be aware of this clinicalentity to distinguish it from actual tumor invasion
Total body irradiation using VMAT (RapidArc): A planning study of a novel treatment delivery method
No full textPurpose: To evaluate the feasibility of using volumetric modulated arc therapy (VMAT) using RapidArc to deliver total body irradiation (TBI) treatment. Methods: VMAT planning was performed a whole body computed tomography (CT) data set using Rapid Arc. The planning target volumes included entire body trimmed to 3 mm below the skin. The organs at risk included the lungs and kidneys. A dose of 12 Gy in 10 fractions was prescribed to the target volume. The VMAT-TBI technique consisted of three isocentres and three overlapping arcs: the head and neck, the chest, and the pelvis. The plans were prescribed to ensure, at a minimum, 95 % planning target volume dose coverage with the prescription dose (percentage of volume receiving dose of 12 Gy was 95%) and maximum dose of 109.8%. Mean dose to lung was restricted at 8.6 Gy. Results: The total body volume in the study was 15469 cm3 and the PTV volume was 11322 cm3. The mean dose to PTV was 104%. The homogeneity index was 0.09. Sparing of normal tissues with adequate coverage of skeletal bones was shown to be feasible with Rapid Arc. The study demonstrates that VMAT is feasible for TBI treatment. Unlike conventional TBI chest wall boost with electrons was not required. Conclusion: Th
Improved survival among oral cancer patients: findings from a retrospective study at a tertiary care cancer centre in rural Kerala, India
No full textAbstract Background Oral cancer is very common in India. The reported 5-year survival of such patients is around 50% after treatment with surgery and radiotherapy, much lower than most of the developed countries. Methods A retrospective study of a prospective database of oral cancer patients undergoing surgery from June 2009 to June 2013 was conducted. Follow-up details were updated from case records and by phone calls. Data were double entered in EpiData Entry version 3.1 and were analysed using EpiData Analysis software 2.1.0.73. Results Two-hundred and twenty patients were analysed (136 males); 85% were consuming tobacco, mainly in chewable form. The majority (51.1%) had tongue cancer, of whom 75 patients (34.1%) had T4 tumours. Postoperative radiotherapy was given to 108 patients (49.1%). Forty had recurrence, of which 23 were in early stage. Of these, 19 showed node positivity (p < 0.01). Node-negative patients had 79% 5-year survival while node positive had 59% which is comparable to that reported in developed countries. Median disease-free survival duration was 48.2 months. Conclusions Node positivity is the single factor affecting recurrence and survival. The overall survival and disease-free survival is better in patients without lymph node involvement and in patients with early stage of cancer as compared to the patients with node involvement and in advanced stages
Total Body Irradiation using VMAT (RapidArc): A Planning Study of a novel treatment delivery method
No full textPurpose: To evaluate the feasibility of using volumetric modulated arc therapy (VMAT) using RapidArc to deliver total body irradiation (TBI) treatment. Methods: VMAT planning was performed a whole body computed tomography (CT) data set using Rapid Arc. The planning target volumes included entire body trimmed to 3 mm below the skin. The organs at risk included the lungs and kidneys. A dose of 12 Gy in 10 fractions was prescribed to the target volume. The VMAT-TBI technique consisted of three isocentres and three overlapping arcs: the head and neck, the chest, and the pelvis. The plans were prescribed to ensure, at a minimum, 95% planning target volume dose coverage with the prescription dose (percentage of volume receiving dose of 12 Gy was 95%) and maximum dose of 109.8%. Mean dose to lung was restricted at 8.6Gy. Results: The total body volume in the study was 15469cm3 and the PTV volume was 11322cm3. The mean dose to PTV was 104%. The homogeneity index was 0.09. Sparing of normal tissues with adequate coverage of skeletal bones was shown to be feasible with Rapid Arc. The study demonstrates that VMAT is feasible for TBI treatment. Unlike conventional TBI chest wall boost with electrons was not required. Conclusion: The technique for total body irradiation using RapidArc VMAT was found feasible and is undergoing further studies prior to clinical use
New mite invasions in citrus in the earlyyears of the 21st century
No full textSeveral mite species commonly attack cultivated citrus around the world. Up to
104 phytophagous species have been reported causing damage to leaves, buds and fruits,
but only a dozen can be considered major pests requiring control measures. In recent years,
several species have expanded their geographical range primarily due to the great increase
in trade and travel worldwide, representing a threat to agriculture in many countries. Three
spider mite species (Acari: Tetranychidae) have recently invaded the citrus-growing areas
in the Mediterranean region and Latin America. The Oriental red mite, Eutetranychus
orientalis (Klein), presumably from the Near East, was detected in southern Spain in 2001.
The Texas citrus mite, Eutetranychus banksi (McGregor), is widely distributed in North,
Central and South America. It was first reported in Europe in 1999 on citrus in Portugal;
afterwards the mite invaded the citrus orchards in southern Spain. In Latin America, the
Hindustan citrus mite, Schizotetranychus hindustanicus (Hirst), previously known only
from citrus and other host plants in India, was reported causing significant damage to citrus
leaves and fruits in Zulia, northwest Venezuela, in the late 1990s. Later, this mite species
spread to the southeast being detected on lemon trees in the state of Roraima in northern
Brazil in 2008. Whereas damage levels, population dynamics and control measures are
relatively well know in the case of Oriental red mite and Texas citrus mite, our knowledge
of S. hindustanicus is noticeably scant. In the present paper, information on pest status,
seasonal trends and natural enemies in invaded areas is provided for these species, together
with morphological data useful for identification. Because invasive species may evolve during the invasion process, comparison of behavior, damage and management options
between native and invaded areas for these species will be useful for understanding the
invader s success and their ability to colonize new regions.Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) Brazil provided a research fellowship to the second author. We thank Greg Evans and Gary Miller, USDA, for comments on an early draft, and Debbie Creel for help with references. Mention of trade names or commercial products in this publication is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the USDA.Ferragut Pérez, FJ.; Navia, D.; Ochoa, R. (2013). New mite invasions in citrus in the earlyyears of the 21st century. Experimental and Applied Acarology. 59(1-2):145-164. doi:10.1007/s10493-012-9635-9S145164591-2Abanorte (2008) Cresce exportação de limão tahiti. www.abanorte.com.br/noticias/noticias-da-pagina-inicial/cresce-exportacao-de-limao-tahiti . Accessed 6 Feb 2011Abdel-Shaheed GA, Hammad SM, El-Sawaf SK (1973) Survey and population density studies on mites found on cotton and corn in Abis, Abou-Hommos localities, El-Beheira Province (Egypt). Bull Soc Entomol d’Egypte 57:101–108Abou-Setta MM, Childers CC (1989) Biology of Euseius mesembrinus (Acari: Phytoseiidae): life tables and feeding behavior on tetranychid mites on citrus. Environ Entomol 18:665–669Alcázar MD, Aranda G, Márquez AL, Sánchez L, Ruiz C (2005) Oligonychus perseae (Acari: Tetranychidae) una nueva plaga en el aguacate en el Sur de España. Abstract Book IV Congresso Nacional de Entomología Aplicada—X Jornadas Científicas de la SEEA—I Jornadas Portuguesas de Entomologia Aplicada, Bragança, Portugal, p 213Anonymous (2011) Texas citrus mite, a new pest of San Joaquin Valley citrus. Univ California. Cooperative extension. cekern.ucdavis.edu/entomology/texas_citrus_mite.htm. Accessed 24 Feb 2011APDR (2011) Arthropod pesticide resistance database. http://pesticideresistance.com/ . Accessed 3 March 2011Badii MH, Varela S, Flores AE, Landeros J (2003) Temperature-based life history and life table parameters of Texas citrus mite on range (Acari: Tetranychidae). Syst Appl Acarol 8:25–38Bodenheimer FS (1951) Citrus entomology in the Middle East. W Junk Publications, The HagueBolland HR, Gutierrez J, Flechtmann CHW (1998) World catalogue of the spider mite family (Acari: Tetranychidae). Brill Academic Publishers, LeidenBoubou A, Migeon A, Roderick G, Navajas M (2011) Recent emergence and worldwide spread of the red tomato spider mite, Tetranychus evansi: genetic variation and multiple cryptic invasions. Biol Invasions 13:81–92Caceres S, Childers CC (1991) Biology and life tables of Galendromus helveolus (Acari: Phytoseiidae) on Florida citrus. Environ Entomol 20:224–229Carvalho JP, Ilharco FA, Ferreira MA, Carvalho MUP (1999) Manual de pragas e sintomas de ataque de insetos e ácaros em citrinos. EAN, OeirasCherian MC (1931) South Indian Acarina. J Asiat Soc Beng 27:141–147Childers CC (1992) Texas citrus mite. Fact sheet ENY-818. Univ Florida, IFAS extension. http://edis.ifas.ufl.edu/ch022 . Accessed 23 Feb 2011Childers CC (1994) Biological control of phytophagous mites on Florida citrus utilizing predatory arthropods. In: Rosen D, Bennet FD, Capineira JL (eds) Pest management in the subtropics. Intercept, Andover, pp 25–288Childers CC, Abou-Setta MM, Nawar MS (1991) Biology of Eutetranychus banksi: life tables on ‘Marsh’ grapefruit leaves at different temperatures (Acari: Tetranychidae). Int J Acarol 17:29–35Dhooria MS, Butani DK (1984) Citrus mite Eutetranychus orientalis (Klein) and its control. Pestic 18:35–38Di Palma A (1996) Typhlodromus rhenanoides Athias-Henriot e T. exhilaratus Ragusa (Acari: Mesostigmata: Phytoseiidae): Osservazioni morfologiche, strutturali e considerazioni funzionali. PhD Dissertation, University of BariFantine AK (2011) Physiological damage caused by Schizotetranychus hindustanicus (Hirst, 1924) (Acari: Tetranychidae) in leaf of orange ‘pera’ and survival in three substrates. MSc, Universidade Federal de Viçosa (Brazil)Fantine AK, Sugayama R, Zeidler R, Trassato L, Vilela E (2010) Situação atual do ácaro-hindu dos citros (Schizotetranychus hindustanicus) (Acari: Tetranychidae), no estado de Roraima. In: XXIII Congresso Brasileiro de Entomologia. Anais. Sociedade Entomológica do Brasil, Natal, p 1856Ferragut F, Garcia-Mari F, Marzal C (1983) Determinación y abundancia de los fitoseidos (Acari: Phytoseiidae) en los agrios españoles. Actas I Congreso Asociación Española Ciencias Hortícolas. Valencia, pp 299–308Ferragut F, Garcia-Mari F, Costa-Comelles J, Laborda R (1987) Influence of food and temperature on development and oviposition of Euseius stipulatus and Typhlodromus phialatus (Acari, Phytoseiidae). Exp Appl Acarol 3:317–329Ferragut F, Costa-Comelles J, Garcia-Mari F, Laborda R, Roca D, Marzal C (1988) Dinámica poblacional del fitoseido Euseius stipulatus (Athias-Henriot) y su presa Panonychus citri (McGregor) (Acari: Phytoseiidae, Tetranychidae) en los cítricos españoles. Bol Sanid Veg Plagas 14:45–54García E, Márquez AL, Orta S, Alvarado P (2003) Caracterización de la presencia de Eutetranychus banksi (McGregor) y Eutetranychus orientalis (Klein) en el Sur de España. Phytoma 153:90–96Gerson U (2003) Acarine pests of citrus: overview and non-chemical control. Syst Appl Acarol 8:3–12Gerson U, Kenneth R, Muttath TI (1979) Hirsutella thompsoni a fungal pathogen of mites. II Host-pathogen interactions. Ann Appl Biol 91:29–40Gonçalves M, Cavaco M, Fernandes JE, Soares C, Ramos N (2002) Ácaro do Texas Eutetranychus banksi (McGregor, 1914): nova espécie de ácaro na cultura dos citrinos no Algarve. Direção Geral de Proteção das Culturas, OeirasGupta SK, Gupta YN (1994) A taxonomic review of Indian Tetranychidae (Acari: Prostigmata) with description of new species, redescriptions of known species and keys to genera and species. Mem Zool Surv India 18:1–196Hernández-Suárez E, Torres E, Velázquez Y, Carnero A, Ferragut F (2007) Oligonychus perseae Tuttle, Baker & Abbatiello (Acari: Tetranychidae) en los cultivos de aguacate de Canarias. Abstract Book V Congreso Nacional de Entomología Aplicada, Cartagena (Murcia, España) p 101Hirst S (1924) On some new species of red spider. Ann Mag Nat Hist 14:522–527Imani Z, Shishehbor P (2009) Effect of temperature on life history and life tables of Eutetranychus orientalis (Klein) (Acari: Tetranychidae). Syst Appl Acarol 14:11–18Jeppson LR, Keifer HH, Baker EW (1975) Mites injurious to economic plants. University of California Press, BerkeleyKaruppuchamy P, Mohanasundaram M (1987) New species and records of tetranychid mites (Tetranychidae, Acarina) from India. Entomon 12:89–94Ledesma C, Vela JM, Wong E, Jacas JA, Boyero JR (2011) Population dynamics of the citrus oriental mite Eutetranychus orientalis (Klein) (Acari: Tetranychidae) and its mite predatory complex in Southern Spain. IOBC/WPRS Bull 62:83–92Luckey TD (1968) Insecticide hormoligosis. J Econ Entomol 61:7–12MAPA (2009) Instrução Normativa No. 34, de 8 de setembro de 2009. (Ministério da Agricultura, Pecuária e Abastecimento). Diário Oficial da União 06/09, 09/09/2009Márquez AL, Wong E, García E, Olivero J (2006) Efficacy assay of different phytosanitary chemicals for the control of Eutetranychus orientalis (Klein) (oriental spider mite) on fine lemon and Valencia-Late orange crops. IOBC/WPRS Bull 29:305–310Marsaro AL Jr, Sato ME, Mineiro JLC, Navia D, Aguiar RM, Vieira GB (2009) Ácaros predadores associados ao ácaro hindu dos citros, Schizotetranychus hindustanicus (Hirst, 1924) (Acari: Tetranychidae), no estado de Roraima, Brasil. In: XI Simpósio de Controle Biológico. Resumos. Sociedade Entomológica do Brasil, Bento Gonçalvez, Abstract 09/093 (CD-ROM)Marsaro AL Jr, Navia D, Sato ME, Silva Jr RJ, Moreira GAM, Duarte OR (2010) Host plant range of the citrus Hindu mite, Schizotetranychus hindustanicus (Hirst) (Tetranychidae) in Brazil. In: Moraes GJ, Castillo RC, Flechtmann CH (eds) XIII international congress of acarology. Abstracts, Recife, pp 144–145Mattos VM, Feres RJF (2009) Morphological pattern and life cycle of Eutetranychus banksi (Acari: Tetranychidae) from different localities and hosts. Zoologia 26:427–442McCoy CW, Selhime AG (1974) The fungus pathogen Hirsutella thompsoni and its potential use for control of the citrus rust mite in Florida. In: Proceedings international citrus congress, Murcia, Spain, vol 2, pp 521–527McMurtry JA (1977) Some predaceous mites (Phytoseiidae) on citrus in the Mediterranean region. Entomophaga 22:19–30McMurtry JA (1985) Citrus. In: Helle W, Sabelis MW (eds) Spider mites, their biology, natural enemies and control. Elsevier, The Netherlands, pp 339–347McMurtry JA, Huffaker CB, van de Vrie M (1970) Ecology of tetranychid mites and their natural enemies: a review. I. Tetranychid enemies: Their biological characters and the impact of spray practices. Hilgardia 40:331–458Migeon A, Dorkeld F (2010) Spider mites web: a comprehensive database for the Tetranychidae. http://www.montpellier.inra.fr/CBGP/spmweb . Accessed 19 Feb 2011Momen F, El-Borolossy M (1999) Suitability of the citrus brown mite Eutetranychus orientalis as prey for nine species of phytoseiid mites (Acari: Tetranychidae, Phytoseiidae). Acarologia XL:19–23Montserrat M, de la Peña F, Hormaza JI, González-Fernández JJ (2008) How do Neoseiulus californicus (Acari: Phytoseiidae) females penetrate densely webbed spider mite nests? Exp Appl Acarol 44:101–106Navajas M, Gutierrez J, Bonato O, Bolland HR, Mapangou-Divassa S (1994) Intraspecific diversity of the Cassava Green Mite Mononychellus progresivus (Acari: Tetranychidae) using comparisons of mitochondrial and nuclear ribosomal DNA sequences and cross-breeding. Exp Appl Acarol 18:351–360Navia D, Marsaro AL Jr (2010) First report of the citrus Hindu mite, Schizotetranychus hindustanicus (Hirst) (Prostigmata: Tetranychidae), in Brazil. Neotrop Entomol 39:140–143Navia D, de Moraes GJ, Roderick G, Navajas M (2005) The invasive coconut mite Aceria guerreronis (Acari: Eriophyidae): origin and invasion sources inferred from mitochondrial (16S) and nuclear (ITS) sequences. Bull Entomol Res 95:505–516Navia D, Moraes GJ de, Flechtmann CHW (2007) Phytophagous mites as invasive alien species: quarantine procedures. In: Morales-Malacara JB, Behan-Pelletier V, Ueckermann E, Pérez TM, Estrada E, Gispert C, Badii M (eds) XI International congress of acarology. Proceedings, Merida, pp 307–316Nienstaedt-Arreaza BM (2007) Estudio de algunos aspectos biológicos y ecológicos del ácaro hindú de los cítricos Schizotetranychus hindustanicus (Hisrt, 1924) (Acari: Tetranychidae) en Maracay, Venezuela. Undergraduate monography, Universidad Central de VenezuelaNomikou M, Janssen A, Schraag R, Sabelis MW (2002) Phytoseiid predators suppress populations of Bemisia tabaci on cucumber plants with alternative food. Exp Appl Acarol 27:57–68OEPP/EPPO (1997) Quarantine pests for Europe. CABI Publishing, WallingfordOEPP/EPPO (2010) PQR—EPPO database on quarantine pests. European and Mediterranean Plant Protection Organization. http://www.eppo.org/DATABASES/databases.htm . Accessed 3 March 2011Palevsky E, Ucko O, Peles S, Yablonski S, Gerson U (2003) Species of Oligonychus infesting date palm cultivars in the Southern Arava Valley of Israel. Phytoparasitica 31:144–153Quirós M, Dorado I (2005) Eficiencia de tres productos comerciales en el control del ácaro hindú de las cítricas Schizotetranychus hindustanicus (Hisrt), en el laboratorio. In: Congreso de Entomología 2005. Resumen. Universidad del Zulia, MaracaiboQuirós M, Geraud-Pouey F (2002) Schizotetranychus hindustanicus (Hirst) (Acari: Tetranychidae), new spider mite pest damaging citrus in Venezuela, South America. In: Morales-Malacara JB, Rivas G (eds) XI International congress of acarology. Program and abstract book. Universidad Nacional Autónoma de México, Distrito Federal México, pp 255–256Saitô Y (1985) Life types of spider mites. In: Helle W, Sabelis MW (eds) Spider mites: their biology, natural enemies and control. Elsevier Science, Amsterdam, pp 253–264Sanderson JP, McMurtry JA (1984) Life history studies of the predaceous mite Phytoseius hawaiiensis. Entomol Exp Appl 35:227–234Schütte C, Hulshof J, Dijkman H, Dicke M (1995) Change in foraging behavior of the predatory mite Phytoseiulus persimilis: some characteristics of a mite population that does not respond to herbivore-induced synomones. Proc Sect Exp Appl Entomol NEV 6:133–139Smith-Meyer MKP (1987) African Tetranychidae (Acari: Prostigmata) with reference to the world genera. Republic of South Africa, Department of Agriculture and Water Supply. Entomology Memoir 69, 175 ppSmith-Meyer MKP (1998) Lowveld citrus mite Eutetranychus orientalis (Klein). In: Bedford ECG, van den Berg MS, de Villiers EA (eds) Citrus pests in the Republic of South Africa. Institute for Tropical and Subtropical Crops, Dynamic AD, Nelspruit, pp 69–72Swirski E, Amitai S, Dorzia N (1967) Laboratory studies on the feeding, development and reproduction of the predaceous mites Amblyseius rubini Swirski & Amitai and Amblyseius swirskii Athias-Henriot (Acarina: Phytoseiidae) on various kinds of food substances. Israel J Agric Res 17:101–119Swirski E, Amitai S, Dorzia N (1970) Laboratory studies on the feeding habits, post-embryonic survival and oviposition of the predaceous mites Amblyseius chilenensis Dosse and Amblyseius hibisci Chant (Acarina: Phytoseiidae) on various kinds of food substances. Entomophaga 15:93–106Tanigoshi LK, Bahdousheh M, Babcock JM, Sawaqed R (1990) Euseius scutalis (Athias-Henriot) a predator of Eutetranychus orientalis (Klein) (Acari: Phytoseiidae, Tetranychidae) in Jordan: toxicity of some acaricides to E. orientalis. Arab J Plant Prot 8:114–120Vacante V (2010). Citrus mites. Identification, bionomy and control. CABI Publishing, WallingfordVan der Geest LPS, Elliot SL, Breeuwer JAJ, Beerling EAM (2000) Diseases of mites. Exp Appl Acarol 24:497–560Villanueva RT, Childers CC (2007) Development of Iphiseiodes quadripilis (Banks) (Acari: Phytoseiidae) on pollen or mite diets and predation on Aculops pelekassi (Keifer) (Acari: Eriophyidae) in the laboratory. Environ Entomol 36:9–14Walter DE, Halliday RB, Smith D (1995) The oriental red mite, Eutetranychus orientalis (Klein) (Acarina: Tetranychidae), in Australia. J Aust Entomol Soc 34:307–308Weintraub PG, Kleitman S, Mori R, Gan-Mor S, Gannot L, Palevsky E (2009) Novel application of pollen to augment the predator Amblyseius swirskii on greenhouse sweet pepper. IOBC/WPRS Bull 50:119–124Zhang YX, Zhang ZQ, Lin JZ, Ji J (2000) Potential of Amblyseius cucumeris (Acari: Phytoseiidae) as a biocontrol agent against Schizotetranychus nanjingensis (Acari: Tetranychidae) in Fujian, China. Syst Appl Acarol Special Publ 4:109–12
