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Introduction. The thoracic lymphatic duct in the upper half of the body collects lymph from the left lung, the left half of the heart, the walls of the left half of the chest, from the left upper limb and the left half of the neck and head. Therefore, the left-sided localization of the revealed pathological changes, with the involvement of the mediastinum and neck in the process at the same time, can be a sign of damage to the thoracic lymphatic duct (at the location), and therefore the key to a successful diagnosis of the disease. Aim. Demonstration of modern possibilities of clinical and radiological diagnosis of cystic malformation of the thoracic lymphatic duct (CMTLD). Results. In the literature, the pathology of the thoracic lymphatic duct is designated by two terms: “lymphangioma” and “cystic malformation of the thoracic lymphatic duct”. According to the generally accepted classification of vascular formations ISSVA (adopted at the 20th ISSVA conference in Melbourne in April 2014, last revised in May 2018), the term “lymphangioma” with regard to lymphatic malformations is considered obsolete, its use is recommended for true benign tumors of the lymphatic vessels. CMTLD – benign, extremely rare lymphovascular lesions resulting from embryological disorders (weakness of the duct wall and valve mechanism) in the development of the lymphatic system. The median prevalence is less than 1 % among all mediastinal cystic formations. Effective non-invasive diagnostics at the initial visit of the patient already at the outpatient stage deserves professional evaluation. We present the own clinical and radiological observation of a 26-year-old patient without any special clinical manifestations, in whom volumetric changes in the mediastinum on the left were detected during routine fluorography. The nature (X-ray semiotics) of preoperative imaging using computed tomography has been clarified. The revealed X-ray and pathoanatomical changes were compared. Conclusion. CMTLD – congenital lymphatic anomalies, more frequent and symptomatic in children. In older patients, acquired and asymptomatic CMTLD are most often diagnosed. The logistics of modern imaging technologies makes it possible to successfully diagnose such a rare disease as CMTLD already at the stage of the patient’s initial visit to the doctor.
Introduction. The thoracic lymphatic duct in the upper half of the body collects lymph from the left lung, the left half of the heart, the walls of the left half of the chest, from the left upper limb and the left half of the neck and head. Therefore, the left-sided localization of the revealed pathological changes, with the involvement of the mediastinum and neck in the process at the same time, can be a sign of damage to the thoracic lymphatic duct (at the location), and therefore the key to a successful diagnosis of the disease. Aim. Demonstration of modern possibilities of clinical and radiological diagnosis of cystic malformation of the thoracic lymphatic duct (CMTLD). Results. In the literature, the pathology of the thoracic lymphatic duct is designated by two terms: “lymphangioma” and “cystic malformation of the thoracic lymphatic duct”. According to the generally accepted classification of vascular formations ISSVA (adopted at the 20th ISSVA conference in Melbourne in April 2014, last revised in May 2018), the term “lymphangioma” with regard to lymphatic malformations is considered obsolete, its use is recommended for true benign tumors of the lymphatic vessels. CMTLD – benign, extremely rare lymphovascular lesions resulting from embryological disorders (weakness of the duct wall and valve mechanism) in the development of the lymphatic system. The median prevalence is less than 1 % among all mediastinal cystic formations. Effective non-invasive diagnostics at the initial visit of the patient already at the outpatient stage deserves professional evaluation. We present the own clinical and radiological observation of a 26-year-old patient without any special clinical manifestations, in whom volumetric changes in the mediastinum on the left were detected during routine fluorography. The nature (X-ray semiotics) of preoperative imaging using computed tomography has been clarified. The revealed X-ray and pathoanatomical changes were compared. Conclusion. CMTLD – congenital lymphatic anomalies, more frequent and symptomatic in children. In older patients, acquired and asymptomatic CMTLD are most often diagnosed. The logistics of modern imaging technologies makes it possible to successfully diagnose such a rare disease as CMTLD already at the stage of the patient’s initial visit to the doctor.
. Mediastinal cystic formations are well-shaped, often round formations that contain fluid and are lined with epithelium. The main cystic formations include congenital benign cysts (bronchogenic, duplicating the esophagus, neuroenteric, pericardial and thymic cysts), meningocele, mature cystic teratomas and lymphangiomas. Many tumors (e.g., thymomas, Hodgkin's disease, germ cell tumors, mediastinal carcinomas, lymph node metastases, nerve root tumors) may undergo cystic degeneration, especially after radiation or chemotherapy, and show mixed solid and cystic elements on computed tomography (CT) or magnetic resonance imaging (MRI), as well as acquire the structure of cavity formations during the tumor destruction. If the degeneration is extensive, such tumors may be virtually indistinguishable from congenital cysts. However, the history of the disease, visualization of the anatomical location of the formation, some details visible on CT or MRI, allow in many cases to make the correct diagnosis. Familiarity with the radiographic features of mediastinal cystic lesions facilitates accurate diagnosis, differentiation from other cystic lesions, and thus ensures optimal treatment of a patienta.
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