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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">medvis</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская визуализация</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Visualization</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1607-0763</issn><issn pub-type="epub">2408-9516</issn><publisher><publisher-name>RDS-Media Ltd.</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24835/1607-0763-2018-3-70-80</article-id><article-id custom-type="elpub" pub-id-type="custom">medvis-577</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>БРЮШНАЯ ПОЛОСТЬ И МАЛЫЙ ТАЗ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ABDOMEN AND SMALL PELVIS</subject></subj-group></article-categories><title-group><article-title>Ошибки в диагностике новообразований поджелудочной железы: интрапанкреатическая долька селезенки</article-title><trans-title-group xml:lang="en"><trans-title>Pitfalls in pancreatic lesion diagnostics: an accessory intrapancreatic spleen</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тюнибабян</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Tyunibabyan</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тюнибабян Анастасия Ивановна – клинический ординатор отделения рентгенологии и магнитно-резонансных исследований</p><p>117997 Москва, ул. Большая Серпуховская, д. 27</p></bio><bio xml:lang="en"><p>Anastasia I. Tyunibabyan – resident of the Radiology department</p><p>117997 Moscow, Bolshaya Serpuhovskaya str., 27</p></bio><email xlink:type="simple">nastya-18031993@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Блохин</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Blokhin</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Блохин Иван Андреевич – аспирант отделения рентгенологии и магнитно-резонансных исследований</p><p>Москва</p></bio><bio xml:lang="en"><p>Ivan A. Blokhin – postgraduate student of the Radiology department</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чернина</surname><given-names>В. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernina</surname><given-names>V. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чернина Валерия Юрьевна – клинический ординатор отделения рентгенологии и магнитно-резонансных исследований</p><p>Москва</p></bio><bio xml:lang="en"><p>Valeria Y. Chernina – resident of the Radiology department</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Калдаров</surname><given-names>А. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Kaldarov</surname><given-names>A. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Калдаров Айрат Радикович – кандидат медицинских наук, врач-хирург отделения абдоминальный хирургии № 1</p><p>Москва</p></bio><bio xml:lang="en"><p>Ayrat R. Kaldarov – cand. of med. sci., surgeon of Abdominal Surgery Department No. 1</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кармазановский</surname><given-names>Г. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Karmazanovsky</surname><given-names>G. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кармазановский Григорий Григорьевич – член-корреспондент РАН, доктор медицинских наук, профессор, заведующий отделом лучевых методов диагностики</p><p>Москва</p></bio><bio xml:lang="en"><p>Grigory G. Karmazanovsky – Corresponding Member of the Russian Academy of Sciences, doct. of med. sci., Professor, Head of the Radiology department</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ “НМИЦ хирургии им. А.В. Вишневского” Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>A.V. Vishnevsky National Medical Research Center of Surgery</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>28</day><month>06</month><year>2018</year></pub-date><volume>0</volume><issue>3</issue><fpage>70</fpage><lpage>80</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Тюнибабян А.И., Блохин И.А., Чернина В.Ю., Калдаров А.Р., Кармазановский Г.Г., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Тюнибабян А.И., Блохин И.А., Чернина В.Ю., Калдаров А.Р., Кармазановский Г.Г.</copyright-holder><copyright-holder xml:lang="en">Tyunibabyan A.I., Blokhin I.A., Chernina V.Y., Kaldarov A.R., Karmazanovsky G.G.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://medvis.rdsmedia.ru/jour/article/view/577">https://medvis.rdsmedia.ru/jour/article/view/577</self-uri><abstract><sec><title>Введение</title><p>Введение. Добавочная селезенка является одним из распространенных доброкачественных врожденных пороков развития человека. Ее расположение может быть разнообразным, как вблизи селезенки, большого сальника и брыжейки тонкой кишки, так и в структуре других органов, например в поджелудочной железе, стенке желудка или двенадцатиперстной кишки. В последнем случае добавочную селезенку называют эктопированной (от греч. ektopos – смещенный). Выявление подобных селезеночных долек происходит, как правило, случайно при ультразвуковом исследовании (УЗИ) органов брюшной полости.</p></sec><sec><title>Цель исследования</title><p>Цель исследования: представить клинические наблюдения верифицированной интрапанкреатической добавочной селезенки (ИПДС), выявить основные критерии дифференциальной диагностики данного патологического состояния с другими гиперваскулярными образованиями поджелудочной железы.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Представлены два клинических наблюдения: женщина 43 лет, имеющая в анамнезе оперированный рак почки, и мужчина 61 года, у которого не было жалоб и сопутствующей патологии на момент обследования. В обоих случаях по результатам инструментального обследования была заподозрена нейроэндокринная неоплазия (НЭН) хвоста поджелудочной железы. Инструментальное обследование данных пациентов включало УЗИ органов брюшной полости с применением цветового дуплексного картирования; мультиспиральную компьютерную томографию (МСКТ) органов брюшной полости с внутривенным болюсным контрастированием неионным йодистым контрастным препаратом и сканированием в нативную, артериальную (10 с от достижения пороговой плотности 150 ед.H в просвете нисходящей аорты), в венозную (60 с от начала введения контрастного препарата) и в отсроченную фазы контрастного усиления (на 5–6-й минуте от начала введения контрастного препарата). В одном случае проведены магнитно-резонансная томография (МРТ) в режимах Т1и Т2ВИ в аксиальной, сагиттальной и корональной плоскостях, динамическое внутривенное контрастирование и диффузионно-взвешенная МРТ (ДВ-МРТ). Обоим пациентам выполнено оперативное вмешательство в объеме робот-ассистированной дистальной резекции поджелудочной железы. При морфологическом исследовании была выявлена ИПДС.</p></sec><sec><title>Результаты</title><p>Результаты. Эктопированная ткань селезенки имела денситометрические показатели, аналогичные таковым в основном органе, и сходный характер контрастирования. МРТ не позволила дифференцировать ИПДС, НЭН и гиперваскулярные метастазы.</p></sec><sec><title>Заключение</title><p>Заключение. ИПДС не требует хирургического лечения. Именно поэтому необходима дифференциальная диагностика с НЭН, солидной псевдопапиллярной опухолью и гиперваскулярными метастазами поджелудочной железы. При этом максимально результативным является комплексный подход с использованием нескольких методов лучевой диагностики, включающий МРТ (с ДВ-МРТ) и сцинтиграфию с 99mTc. Наличие в структуре селезенки ретикулоэндотелиальной системы (РЭС) позволяет применять в диагностике ее эктопированных долек сцинтиграфию с эритроцитами в комплексе с 99mTc, при которой отмечается характерное накопление радиофармпрепарата в ИПДС и основной селезенке. УЗИ с цветовым допплеровским картированием и контрастным усилением может стать хорошим дополнением в дифференциально-диагностическом поиске. Метод позволяет оценить сосудистую ножку ИПДС и характер накопления контрастного препарата в РЭС. У МРТ есть преимущество за счет применения диффузионно-взвешенных изображений. Исчисляемый коэффициент диффузии (ИКД) ткани селезенки будет соответствовать основной селезенке, в то время как другие новообразования имеют более низкие значения ИКД.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Accessory spleen (splenunculus) is one of the most common benign congenital anomalies in humans. The location of splenunculus may vary from perisplenic, greater omental or mesenterial to intraparenchymal (pancreas, stomach, duodenum, etc.). In the latter case, the additional spleen is called ectopic (from the greekektoposdisplaced). Most frequently detection of such splenic lobules occurs accidentally via abdominal ultrasound.</p></sec><sec><title>Objective</title><p>Objective: two cases of verified intrapancreatic accessory spleen (IPAS) and main criteria for differential diagnosis with other hypervascular pancreatic lesions.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. We present two case reports: a 43-year-old woman with a history of kidney cancer and a healthy 61-year-old man. In both cases, pancreatic neuroendocrine neoplasia (NEN) was initially suspected. Preoperative diagnostics included abdominal ultrasound examination and multiphase dynamic computed tomography (CT) with intravenous bolus nonionic iodine-based contrast agent (native, arterial – 10 sec, venous – 60 sec and delayed – 300 sec after threshold density of 150 HU in the aorta was exceeded). In one case magnetic resonance imaging (MRI) including axial, sagittal and coronal T1and T2-weighted images, diffusion-weighted images and dynamiccontrast-enhanced series with gadolinium chelate was performed. Both patients underwent robotic assisted distal pancreas resection. Morphological examination revealed IPAS.</p></sec><sec><title>Results</title><p>Results. In contrast-enhanced computed tomography IPAS has densitometric parameters similar to the spleen. Generally, magnetic resonance imaging does not differentiate IPAS, NEN and hypervascular metastases, since all three are generally T2-hyperintense and T1-hypointense. Contrast enhancement pattern with gadolinium chelateswas similar to CT-contrast enhancement pattern.</p></sec><sec><title>Conclusion</title><p>Conclusion. Intrapancreatic accessory spleen does not require surgical treatment. Therefore, differential diagnosis between IPAS and neuroendocrine neoplasia, solid pseudopapillary tumor and hypervascular pancreatic metastases is crucial. MRI has an advantage with non-invasive diffusionweighted images (DWI). The apparent diffusion coefficient (ADC) of IPAS will be quantitatively similar to the main spleen while other lesion will demonstrate lower ADC values. Scintigraphy with red blood cells bound with 99mTc utilizes the reticuloendothelial system (RES) in the spleen demonstrating characteristic uptake in the IPASand the main spleen. Ultrasound with color Doppler and contrast enhancement may be a good addition to our armamentarium. One can evaluate the vascular pedicle of the IPAS, as well as contrast agent retention in RES via sonography. We believe the multimodal approach including MRI with DWI/ADC to be the most effective.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>эктопия селезенки</kwd><kwd>интрапанкреатическая добавочная селезенка</kwd><kwd>дифференциальная диагностика</kwd><kwd>опухоль поджелудочной железы</kwd><kwd>МСКТ поджелудочной железы</kwd><kwd>МРТ поджелудочной железы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ectopic spleen</kwd><kwd>intrapancreatic accessory spleen</kwd><kwd>differential diagnosis</kwd><kwd>pancreatic tumor</kwd><kwd>MDCT</kwd><kwd>MRI</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Movitz D. Accessory spleens and experimental splenosis. 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