ABSTRACT
Objective:To distinguish lung metastases of different origin by constructing a classification model according to CT radiomics features.Methods:A total of 226 patients with lung metastases of gastric cancer, breast cancer and kidney cancer attending Chongqing Red Cross Hospital from January 2015 to July 2020, with a total of 402 metastases, were randomly divided into a training cohort (training set, 136 patients, 280 metastases) and a validation cohort (validation set, 90 patients, 122 metastases) by the hold-out method. In addition, 68 patients with lung metastases (138 lung metastases in total) attending Chongqing Red Cross Hospital from August 2020 to April 2022 were matched as an external test cohort (test set). Region of interest segmentation was performed by two experienced radiologists independently and manually without clinical information to construct the model by using LASSO screening for the best radiomic features. Support vector machine (SVM) and random forest (RF) were selected to build dichotomous and trichotomous models respectively. The receiver operating characteristic curve was used to evaluate the classification efficiency of both models.Results:There were no statistically significant differences in age ( t=-0.06, P=0.534), gender ( χ2<0.01, P=0.961) and number of lung metastases ( χ2=0.71, P=0.703) between the validation and test sets. A total of 792 radiomic features were extracted, 703 of which had good agreement (intraclass correlation coefficient≥0.75), while 89 features being excluded for having poor agreement (intraclass correlation coefficient<0.75). The dichotomous model (SVM) screened 28 (lung metastases from gastric cancer vs. lung metastases from breast cancer), 25 (lung metastases from gastric cancer vs. lung metastases from kidney cancer) and 34 (lung metastases from kidney cancer vs. lung metastases from breast cancer) features, respectively; the trichotomous model (RF) screened 20 features (three types of lung metastases), in which Short Run Emphasis and Inverse Variance were significantly higher in lung metastases from kidney cancer than in the other two types, correlation was higher in lung metastases from gastric cancer than in the other two types, and there was no significant difference in the sphericity of the three lung metastases. For the dichotomous model, in the validation set, the area under the curve (AUC) of the 28 features selected to distinguish gastric cancer lung metastases from breast cancer lung metastases was 0.81, the AUC of the 25 features distinguishing gastric cancer lung metastases from kidney cancer lung metastases was 0.86, and the AUC of the 34 features distinguishing kidney cancer lung metastases from breast cancer lung metastases was 0.92, and the AUCs of the test set were 0.80, 0.79 and 0.86 respectively. For the trichotomous model, the AUC for predicting lung metastases from gastric cancer, breast cancer and kidney cancer in the validation set were 0.85, 0.82 and 0.91 respectively, and both macroscopic and microscopic AUC were 0.85; In the test set, the AUC for predicting lung metastases from gastric cancer, breast cancer, and kidney cancer were 0.77, 0.86 and 0.84 respectively, and both macroscopic and microscopic AUC were 0.81. Conclusion:The SVM and RF models based on CT radiomic features are helpful in distinguishing lung metastases derived from gastric cancer, breast cancer and kidney cancer.
ABSTRACT
El cáncer papilar de tiroides es el tumor tiroideo más común en la infancia. En estadios avanzados, puede presentarse con cuadro de insuficiencia respiratoria. El tratamiento de elección es la tiroidectomía total y iodo radiactivo. En tumores irresecables, se debería considerar terapia con inhibidores multicinasa.Niña de 10 años de edad derivada por insuficiencia respiratoria progresiva. Se realizó el diagnóstico de cáncer papilar de tiroides con metástasis pulmonares. Por presentar un tumor irresecable no pasible de cirugía, se indicó el uso compasivo de lenvatinib, que mostró una rápida y favorable respuesta clínica con resolución de la insuficiencia respiratoria al noveno día del tratamiento.El diagnóstico temprano de cáncer papilar de tiroides previene la grave morbilidad respiratoria ocasionada por diagnósticos tardíos. Podría considerarse el uso de lenvatinib como alternativa previa a las terapias de primera línea (cirugía e iodo radiactivo) en casos de enfermedad con gran compromiso local y a distancia.
Papillary thyroid cancer is the most common thyroid tumor in childhood. In advanced stages, it can present with respiratory failure. The treatment of choice is total thyroidectomy and radioactive iodine. In cases of unresectable tumors, therapy with multikinase inhibitors should be considered. A 10-year-old girl was referred for progressive respiratory failure. A diagnosis of papillary thyroid cancer with pulmonary metastases was made. Due to the presence of an unresectable tumor not subject to surgery, the compassionate use of lenvatinib was indicated, showing a rapid and favorable clinical response with resolution of respiratory failure on the ninth day.Early diagnosis of papillary thyroid cancer prevents severe respiratory morbidity caused by late diagnoses. The use of lenvatinib should be considered as a previous step towards first-line therapies (surgery and radioactive iodine) in cases with great local and distant involvement.
Subject(s)
Humans , Female , Child , Thyroid Cancer, Papillary/drug therapy , Respiratory Insufficiency , Combined Modality Therapy , Thyroid Cancer, Papillary/diagnosis , Neoplasm Metastasis , Antineoplastic Agents/therapeutic useABSTRACT
@#Objective To explore the factors that affect the accuracy of percutaneous thermal ablation of lung metastases and coping strategies. Methods We retrospectively analyzed the clinical data of 31 patients who met the conditions for thermal ablation of lung metastases in Ninth People’s Hospital affiliated to Shanghai Jiao Tong University School of Medicine between October 2019 and December 2020. There were 19 males and 12 females with a mean age of 40-81 (62.8±10.3) years. A total of 33 metastases tumors were thermally ablated, 12 were radiofrequency ablation and 19 were microwave ablation. Results Of the 33 metastatic tumors, 5 targets showed significant puncture deviation, 4 of them completed the ablation after adjustment and 1 failed. The result of the univariate logistic regression showed the distance within the lung parenchyma (P=0.043) and the maximum diameter of the tumor (P=0.025) were independent risk factors for the accuracy of percutaneous thermal ablation. In terms of correlation, there was a positive correlation between the accuracy of percutaneous thermal ablation and the distance within the lung parenchyma (P=0.033), and a negative correlation between the maximum diameter of metastases tumor (P=0.004) and hemoptysis (P=0.015). Complete ablation rate was 87.8% (29/33). Conclusion When we perform CT-guided percutaneous thermal ablation of lung metastases, we must fully prepare the deviation plan for the small diameter tumor, the long travel distance in the lung parenchyma, and hemoptysis during puncture. Complete ablation can be achieved by fully identifying the anatomical features of the tumor and its surrounding structures, shortening the travel distance in the lung parenchyma and increasing the ablation range.
ABSTRACT
Objective: Among the opioids used for treating dyspnea in cancer patients, the evidence for clinical use of fentanyl is not adequate. We report a case that suggested that fentanyl citrate patch improved dyspnea caused by lung metastasis of ureteral cancer.Case: An 86-year-old female was scheduled to start opioids for dyspnea caused by exacerbation of lung metastasis from ureteral cancer. Morphine hydrochloride was not chosen due to renal dysfunction, and oxycodone hydrochloride extended-release tablet was initiated. However, one day after starting medication, the patient refused to take the tablet because of vomiting. Given the difficulties in using morphine hydrochloride and oxycodone hydrochloride extended-release tablet, fentanyl citrate patch 0.5 mg/day was started for the purpose of improving dyspnea. The dose was eventually increased to 1.0 mg/day. Dyspnea improved and she was discharged.Conclusion: This case suggested the possibility that use of fentanyl citrate patch may be effective for dyspnea. Fentanyl citrate patch may provide one option when other drugs such as morphine hydrochloride and oxycodone hydrochloride cannot be used. However, since this is a report of a single case, further verification is required to clarify the effectiveness of fentanyl citrate patch for dyspnea.
ABSTRACT
@#Objective To investigate the effectiveness of sublobar resection and lobectomy via uniportal video-assisted thoracoscopic surgery (U-VATS) for lung metastases from colorectal cancer. Methods Retrospective research was conducted on 42 colorectal cancer patients with lung metastases who underwent U-VATS sublobar resection and lobectomy at the Tongji Hospital, Huazhong University of Science and Technology between April 2016 and May 2019, including 24 males and 18 females with an average age of 58.0±9.9 years. Among them 17 patients received U-VATS sublobar resection and 25 patients received lobectomy. The operation time, intraoperative blood loss, postoperative pulmonary infection, drainage tube indwelling time, drainage volume on the first day after surgery, postoperative hospital stay were analyzed between the two groups, and the relationship between the prognosis and clinical characteristics of the two groups was compared. Results Sublobar resection patients had less lung metastases (P=0.043) and shorter operation time (P=0.023) compared with the lobectomy patients. There was no significant difference between the lobectomy and sublobar resection groups in intraoperative blood loss (P=0.169), rate of postoperative infection (P=0.982), postoperative drainage duration (P=0.265), drainage volume on the first day after surgery (P=0.402) and postoperative hospital stay (P=0.612). The progression-free survival of the two groups was 25.19 months and 23.63 months (P=0.721), and their overall survival was 29.09 months and 30.64 months (P=0.554). Conclusion Considering guantity and locations of lung metastases, U-VATS sublobar resection can achieve a similar prognosis to lobectomy for lung metastases from colorectal cancer. Further efficacy of this surgical strategy remains to be proved by longer follow-up.
ABSTRACT
BACKGROUND@#Microwave ablation and radioactive seed implantation are therapeutic options for patients with advanced lung cancer and lung metastases lesion who are not surgical candidates. However, reports on therapeutic effectiveness and safety of the two combination treatments methods have been limited to small case series. This research was to assess the clinical outcome and safety of radioactive seed implantation combined with computed tomography (CT)-guided microwave ablation for the treatment of advanced lung cancer and lung metastases lesion.@*METHODS@#The clinical data of 21 advanced lung cancer and lung metastases patients who received treatment at author hospital during the period from May 2018 to December 2018 were retrospectively analyzed. The patients were divided into two groups by whether received extra percutaneous microwave thermal ablation therapy. The short-term effectiveness and safety were analyzed.@*RESULTS@#The efficacy of control group was 28.75%, and the efficacy of experiment group was 14.28%. The rate of adverse reaction between two groups has no significantly difference (P>0.05).@*CONCLUSIONS@#Seed implantation combined with CT-guided microwave ablation for advanced lung cancer and lung metastases is safety and effective.
ABSTRACT
Background: Mutations in the RAS/RAF pathway predict resistance to anti-epidermal growth factor receptor antibodies in colorectal cancer (CRC), and may be targets for future therapies. This study investigates concordance of BRAF, HRAS, KRAS, NRAS and PIK3CA mutation status in primary CRC with matched liver (n = 274), lung (n = 114) or combined liver and lung metastases (n = 14). Methods: Next generation sequencing was performed on DNA from formalin-fixed paraffin embedded CRC and matched liver and/or lung metastases, for recurrent mutations in BRAF, HRAS, KRAS, NRAS and PIK3CA and using the single-molecule molecular inversion probe method. Results: Paired sequencing results on all five genes were reached in 249 of the 402 cases (62%). The obtained number of unique reads was not always sufficient to confidently call the absence or presence of mutations for all regions of interest. The mutational status of matched pairs was highly concordant; 91.1% concordance for all five genes, 95.5% for KRAS, 99.1% for NRAS. Lung metastases more often harboured RAS mutations compared to liver metastases (71% vs. 48%, p < 0.001). Conclusions: In this large series of CRC we show that both primary tumors and corresponding metastases can be used to determine the mutational status for targeted therapy, given the high concordance rates. Next generation sequencing including a single molecule tags is feasible, however in combination with archival formalin-fixed paraffin embedded material is limited by coverage depth.
Subject(s)
Humans , Colorectal Neoplasms/genetics , ras Proteins/genetics , Proto-Oncogene Proteins B-raf/genetics , Liver Neoplasms/genetics , Lung Neoplasms/genetics , Base Sequence , Colorectal Neoplasms/pathology , High-Throughput Nucleotide Sequencing , Liver Neoplasms/secondary , Lung Neoplasms/secondary , Mutation/geneticsABSTRACT
p40, one of the two isomers of p63, is nowadays widely used for diagnosis of squamous cell carcinoma, especially in subtyping non-small cell carcinoma on lung biopsies. We describe a case in which lung tumour was misdiagnosed as squamous cell carcinoma due to p40 immunopositivity. A 36-year-old lady presented with cough and left sided chest pain of 2 months duration. Chest imaging revealed a lesion in left lower lobe of the lung and biopsy was suggestive of squamous cell carcinoma. However, past history revealed amputation of great toe for non-healing discharging ulcer which on histopathology was diagnosed as choriocarcinoma. She also had a history of hysterectomy five years ago, details of which were not available. Post-amputation β-hCG levels were high and she had been treated with multimodality chemotherapy for choriocarcinoma. She had good response to chemotherapy initially, however became resistant later on. Review of the lung biopsy in the light of the past history along with extensive literature review led to the final diagnosis of metastatic trophoblastic tumour to lung. Hence, awareness that p40 immunopositivity can be seen in trophoblastic tumours is essential to avoid misdiagnosis, especially in sites like the lung where squamous cell carcinoma is common.
ABSTRACT
[Objective]To compare and contrast the dosimetry between Tomo planning and BrainLab planning for lung metasta-ses in stereotactic body radiation therapy(SBRT).[Methods]Four Patients with one,two,three and four metastases were selected. The PTV is 2.89 ± 1.15 cm3. Two plannings with total dose of 50 Gy to cover 95% of PTV ,5 Gy/Fraction and 10 fractions were designed using Tomo planning system and BrainLab planning system respectively. The DVH curves of spinal cord ,both lungs and normal tissue were compared. The conformity index andhomogeneityindex were analyzed as well.[Results]The homogeneity index (HI)and conformity index(CI)of the targets in Tomo planning system were 1.0314 ± 0.0700 and 0.687 ± 0.075,respectively. In BrainLab planning system the HI and CI of the targets were 1.0764 ± 0.1241 and 0.571 ± 0.042,respectively. To HI the P value in T test was less than 0.01 and the HI was better in Tomo than BrainLab and so was CI. The dose to spinal cord was higher in BrainLab planning system than that in Tomo. The dose to nomal tissue and both lungs were not different in the two planning systems and V20 of lung is as small as 10%.[Conclusions]For small volume lung metastases which longest diameter were less than 4 cm,the tomotherapy should be better choice.
ABSTRACT
A 48-year-old woman presented with a 50-day history of irregular vaginal bleeding and lower abdominal pain. Ultrasound indicated an extremely large occupying lesion in the pelvic cavity that was highly suggestive of malignancy. Fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) was performed to further assess the nature of pelvic abnormality. PET/CT images demonstrated a diffusely lobulated mass ranging from cervix up to the inferior pole of kidneys with mild FDG uptake. Simultaneously, multiple nodules in bilateral lungs and a hypodense lesion in the right ventricle were shown without FDG-avidity. Based on the imaging results, the presumptive diagnosis was uterine intravenous leiomyomatosis with intracardiac extension and pulmonary benign metastases, which was subsequently confirmed by MRI and the lesion biopsy.
Subject(s)
Female , Humans , Middle Aged , Fluorodeoxyglucose F18/chemistry , Leiomyoma/pathology , Leiomyomatosis/pathology , Lung Neoplasms/diagnostic imaging , Magnetic Resonance Imaging , Positron-Emission Tomography , Tomography, X-Ray Computed , Uterine Neoplasms/pathology , Vena Cava, Inferior/pathologyABSTRACT
Background: Synovial sarcoma is a soft tissue tumor with a high degree of local and metastatic invasion. Case report: We report a 26 years old smoker woman with a history of a synovial tumor excised from the right thigh, who required a hip prosthesis for a pathological fracture due to metastases. Two years after, a lung metastasis in the left upper lobe was excised and treated with chemo and radiotherapy. Two years later a new lung nodule was found and excised. Pathology confirmed that they were metastases of the primary tumor. Three months after this last excision, the patient is asymptomatic.
Introducción: El sinoviosarcoma es una neoplasia de partes blandas con alto grado de invasión local y producción de metástasis. Caso clínico: Mujer de 26 años con 2 episodios secuenciales de metástasis pulmonar a lo largo de 6 años posterior al tratamiento del tumor primario. Patología de tratamiento muy complejo.
Subject(s)
Humans , Adult , Female , Lung Neoplasms/surgery , Lung Neoplasms/secondary , Soft Tissue Neoplasms/pathology , Sarcoma, Synovial/surgery , Sarcoma, Synovial/secondary , ThighABSTRACT
No abstract available.
Subject(s)
Humans , Male , Lung Neoplasms/secondary , Mixed Tumor, Malignant/pathology , Parotid Neoplasms/pathologyABSTRACT
Objective To explore the experience of operative cooperation of trans-sternocostal triangle hand-assisted double lung metastatic tumor resection.Method The clinical data of 54 patients undergoing trans-sternocostal triangle hand-assisted double lung metastatic tumor resection were retrospectively analyzed from January 2005 to December 2005.Results The operations were all successful,with blood loss of 10~700 mL,operation time of 40~300 min,averaged(130.3+43.0)mins.One hundred and seventy eight malignant tumor lesions were removed.No serious complications occurred.Conclusion The key points to ensure thesuccessful operation were as follows:preoperation of special equipment,reasonable position,intraoperative strict aseptic operation,fixing of endoscopic incision suturing instrument,and accurate cooperation at all procedures.
ABSTRACT
Objective To investigate the short-term clinical efficacy of CT-guided percutaneous implantation of 125I radioactive seeds in treating the postoperative lung metastases of malignant fibrous histiocytoma(MFH).Methods Eight patients with lung metastases after MFH surgery received CT-guided percutaneous implantation of 125I radioactive seeds.There are 28 metastasis lesions in total.Prescribed dose (PD) was 80 Gy and radioactivity was 0.7 mCi(2.59 × 107 Bq).Six months after implantation,chest CT-scan was performed and the changes were reviewed according to the international standards.ResultsAverage dose received by tumor was ( 172.9 ± 39.9 ) Gy,D100 ( 77.7 ± 10.2 ) Gy and D90 ( 97.2 ± 6.8 ) Gy.The overall response rate was 82.1％.Patients' survival period was 10.0 - 26.0 ( 14.6 ± 3.5 ) months with the median survival time of 13 months.ConclusionIn the treatment of postoperative lung metastases of MFH,implantation of 125I radioactive seeds produces a good short-term clinical efficacy.
ABSTRACT
ObjectiveTo explore the points of nursing cooperation during hand-assisted thoracoscopic surgery for simultaneous operation of bilateral lung metastasectomy.Methods The preoperative preparation,nursing cooperation during the surgery,the cleaning and maintenance of surgical instruments and equipment after operation were retrospectively summarized in 72 patients who underwent hand-assisted thoracoscopic surgery for simultaneous treatment of bilateral pulmonary metastases. ResultsAll the procedures of surgery were smooth.No patients were converted to thoracotomy or died of surgery. Conclusions It is an important challenge for nursing quality in the operation room and the cleaning and maintenance of surgical instruments and equipment in carrying out hand-assisted thoracoscopic surgery.The skilled nursing cooperation and standardized operating procedures could improve the quality of intraoperative nursing cooperation.It could ensure the smooth process of simultaneous operation of bilateral lung metastasectomy.
ABSTRACT
Parathyroid carcinoma is a rare disease in pediatric patients. We present a case of a 13-year-old girl who presented to the Thyroid Department for an asymptomatic palpable neck mass for 1 year. The high levels of calcium, ionized calcium, and parathyroid hormone level along with parathyroid scintigraphy studies suggested primary hyperparathyroidism. Parathyroid carcinoma was confirmed by biopsy and pathologic examination after resection. Six months postoperatively, persistent hypercalcemia and multiple lung metastases were found on computed tomography. Bilateral lung wedge resection was performed. En bloc resection for primary parathyroid carcinoma and aggressive resection of metastatic disease is the most effective treatment to control hypercalcemia.
Subject(s)
Adolescent , Child , Humans , Biopsy , Calcium , Hypercalcemia , Hyperparathyroidism, Primary , Lung , Neck , Neoplasm Metastasis , Parathyroid Hormone , Parathyroid Neoplasms , Rare Diseases , Thyroid GlandABSTRACT
Surgical treatment of lung metastases (LM) is a therapy used for several types of metastatic cancers. However, the type of surgery and its outcome is controversial. Aim: To describe a series of patients with LM undergoing surgical treatment, their results and long-term follow up. Material and Methods: We retrospectively reviewed all the medical records of patients with the diagnosis of LM, of whatever origin, operated at our hospital between the years 2002 and 2008. We analyzed their clinical characteristics, treatment, morbidity, mortality and results. Results: During this period 24 patients with LM were operated. The mean age was 52.8 +/- 16.6 years. Most patients had kidney cancer as primary tumour. The usual clinical presentation was multiple bilateral nodules. The surgical approach was in general a video-thoracoscopy (40.9 percent) associated with a wedge resection of the lesions (81.8 percent). In 83.4 percent of cases, there were no post-operative complications. Seventy six percent of the patients relapse, in an average of 16.7 +/- 12 months and 68.7 percent were reoperated for a new resection. The probability of surviving more than 3 and 5 years post metastasectomy was 57 percent and 36 percent respectively. Conclusions: In this series the LM were mostly secondary to renal cancer. The video-thoracoscopy is an emergent and safe technique in the treatment of LM, being the main type of surgical approach in our patients. Despite the high percentage of reoperations, the survival rate is comparable to the rest of the published series.
El tratamiento quirúrgico de las metástasis pulmonares (MP) constituye una terapia usada para varios tipos de cánceres metastásicos. Sin embargo, el tipo de cirugía y sus resultados es controversial, por lo que hemos decidido estudiarla. Objetivo: Describir clínicamente una serie de pacientes con MP sometidos a tratamiento quirúrgico, sus resultados y seguimiento a largo plazo. Material y Método: Se revisaron retrospectivamente las fichas de pacientes con el diagnóstico de MP, de cualquier origen, operados en nuestro hospital entre los años 2002 y 2008. Se analizaron las características clínicas, tratamiento, morbimortalidad y resultados. Resultados: Durante este período se operaron 24 pacientes por MP. El promedio de edad fue 52,8 +/- 16,6 años. La mayoría de los pacientes tenía un cáncer renal como tumor primario. La forma habitual de presentación fueron múltiples nodulos bilaterales. El abordaje quirúrgico más frecuente fue por videotoracoscopía (40,9 por ciento) asociado a una resección en cuña de las lesiones (81,8 por ciento). En el 83,4 por ciento no hubo complicaciones post operatorias. El 76,4 por ciento de los pacientes recidivó, en promedio a los 16,7 +/-12 meses y el 68,7 por ciento fue reintervenido para una nueva resección. La probabilidad de sobrevivir más de 3 y 5 años post me-tastasectomía fue de 57 por ciento y 36 por ciento respectivamente. Conclusiones: En esta serie las MP fueron principalmente secundarias a cáncer renal. La videotoracoscopía es una cirugía emergente y segura en el tratamiento de las MP, siendo la principal forma de abordaje quirúrgico en nuestros pacientes. A pesar del elevado porcentaje de reintervenciones, la sobrevida es comparable al resto de las series publicadas.
Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged, 80 and over , Lung Neoplasms/surgery , Lung Neoplasms/secondary , Follow-Up Studies , Lung Neoplasms/mortality , Pneumonectomy , Survival Analysis , Thoracic Surgery, Video-Assisted , Treatment OutcomeABSTRACT
A tomografia computadorizada (TC) de tórax é mais sensível que a radiografia na detecção de metástases pulmonares do carcinoma diferenciado de tireóide (CDT), sendo importante conhecer melhor o valor agregado desse método. Este estudo avaliou a resposta ao tratamento com 131I em pacientes com metástases pulmonares de CDTs não-aparentes na radiografia e o valor da TC nesses casos. Foram avaliados 25 pacientes com metástases pulmonares não-aparentes na radiografia, que receberam inicialmente 100 a 200 mCi de 131I. Naqueles com pesquisa de corpo inteiro (PCI) pós-dose com captação pulmonar, um novo tratamento era realizado após seis a 12 meses, e assim sucessivamente. A chance do encontro de captação pulmonar na PCI pós-dose não foi diferente em pacientes com TC negativa ou positiva (100 por cento versus 91,5 por cento). Os valores médios de tireoglobulina (Tg) sérica foram maiores naqueles com TC positiva (108 ng/mL versus 52 ng/mL). PCI pós-dose negativa foi alcançada em 82 por cento dos pacientes com TC positiva e em 92,3 por cento com TC negativa, e a atividade acumulada de 131I para alcançar essa resposta não foi diferente nos dois grupos (em média, 300 mCi). Quarenta e sete por cento dos pacientes com TC negativa ao final do tratamento apresentaram Tg estimulada indetectável, mas nenhum daqueles que permaneceu com TC positiva apresentou-a. Em pacientes com Tg elevada, o resultado da TC aparentemente não altera a indicação da terapia e a atividade de 131I a ser administrada. Nos casos com metástases pulmonares, a permanência de micronódulos na TC nos pacientes com PCI pós-dose negativa após o tratamento foi associada à persistência de Tg detectável.
Computed tomography (CT or CAT Scan) of the chest is more sensitive than radiography in the detection of lung metastases of differentiated thyroid cancer (DTC), but little information is available regarding the aggregated value of this method. The present study evaluated the response of patients with lung metastases of DTC not apparent on radiography to treatment with 131I and the value of CT in these cases. Twenty-five patients with lung metastases not apparent on radiography, who initially received 100-200 mCi I151, were evaluated and those presenting pulmonary uptake on post-therapy WBS were submitted to a new treatment after 6 to 12 months, and so on. The chance of detection of pulmonary uptake on post-therapy WBS did not differ between patients with negative and positive CT (100 percent versus 91.5 percent). Mean serum Tg levels were higher in patients with positive CT (108 ng/ml versus 52 ng/ml). Negative post-therapy WBS was achieved in 82 percent of patients with positive CT and in 92.3 percent with negative CT and the cumulative I131 activity necessary to achieve this outcome did not differ between the two groups (mean = 300 mCi). Stimulated Tg was undetectable in 47 percent of patients with negative CT at the end of treatment, but in none of the patients whose CT continued to be positive. In patients with elevated Tg, the CT result apparently did not change the indication of therapy or the I131 activity to be administered. In cases with lung metastases, the persistence of micronodules on CT was associated with the persistence of detectable Tg in patients presenting negative post-therapy WBS.
Subject(s)
Adolescent , Adult , Female , Humans , Male , Middle Aged , Young Adult , Carcinoma, Papillary/secondary , Lung Neoplasms/secondary , Tomography, X-Ray Computed , Thyroid Neoplasms/pathology , Carcinoma, Papillary , Carcinoma, Papillary/radiotherapy , Follow-Up Studies , Iodine Radioisotopes/administration & dosage , Lung Neoplasms , Lung Neoplasms/radiotherapy , Neoplasm Staging , Radiotherapy Dosage , Radiopharmaceuticals/therapeutic use , Thyroglobulin/blood , Thyroid Neoplasms , Whole Body Imaging , Young AdultABSTRACT
BACKGROUND/AIMS: Advanced hepatocellular carcinoma (HCC) with multiple lung metastases has a poor prognosis with no effective treatment having been established. This study evaluated the outcomes of systemic chemotherapy for advanced HCC with multiple lung metastases. METHODS: Between January 2000 and December 2006, 68 patients were diagnosed with HCC presenting with multiple lung metastases. Sixteen patients in the terminal stage, such as Child-Pugh grade `C' or an Eastern Cooperative Oncology Group performance status exceeding grade 2, were excluded from the analysis. The following treatment modalities were applied: 26 patients received primary tumor treatment (transarterial chemoembolization or intra-arterial chemotherapy) with systemic chemotherapy, 10 patients received primary treatment only, 8 patients received systemic chemotherapy only, and 8 patients received highly supportive care. The treatment responses and median survival times for the modalities were analyzed and compared. RESULTS: The median age of the 52 analyzed patients (45 males) was 52.4 years. The most common etiology of HCC was chronic hepatitis B virus infection (n=44, 84.6%) followed by hepatitis C virus infection (n=2, 3.8%), with the etiology being unknown in 6 cases (11.5%). The treatment modality had no significant effect on the treatment response rate (P=0.432) or median survival time (133, 66, 74, and 96 days for primary tumor treatment with systemic chemotherapy, primary tumor treatment only, systemic chemotherapy only, and highly supportive care, respectively; P=0.067). CONCLUSIONS: We found that systemic chemotherapy was not effective in treating HCC presenting with multiple lung metastases. Improving the effectiveness of systemic treatment and selecting patients who would benefit from such treatment remains a major challenge.
Subject(s)
Adult , Female , Humans , Male , Middle Aged , Carcinoma, Hepatocellular/drug therapy , Chemoembolization, Therapeutic , Combined Modality Therapy , Data Interpretation, Statistical , Liver Neoplasms/drug therapy , Lung Neoplasms/diagnostic imaging , Neoplasm Staging , Retrospective Studies , Severity of Illness Index , Survival Analysis , Treatment OutcomeABSTRACT
Objective To improve the understandazation of manifestation of lung metastases and awareness of characteristics. Methods 21 cases of lung metastases were collected by the clinical diagnosis during Jan 2005 to Dec 2008, and its manifestation of chest X -ray and CT imaging was analysed to explore the characteristics. Results The chest X - ray was a conventional method for lung metastases .CT, especially HRCT, can provide more comprehensive and accurate image information. 21 cases of lung metastases included 17 cases of hematogenic metastasis, accounting for 80% , 2 cases of lymphatic metastasis and 2 cases of direct metastasis, each accounting for 10% . Primary tumor + lung typical manifestation can help to make more precise diagnosis. Conclusion Chest X - ray and CT are an important for lung metastases in the clinical diagnosis, treatment, program settings, and efficacy of assessment.