Expression of CD24 gene in human malignant pleural mesothelioma and its relationship with prognosis / 中华劳动卫生职业病杂志

Objective: To investigate the expression of CD24 gene in human malignant pleural mesothelioma (MPM) cells and tissues, and evaluate its relationship with clinicopathological characteristics and clinical prognosis of MPM patients. Methods: In February 2021, UALCAN database was used to analyze the correlation between CD24 gene expression and clinicopathological characteristics in 87 cases of MPM patients. The TIMER 2.0 platform was used to explore the relationship between the expression of CD24 in MPM and tumor immune infiltrating cells. cBioportal online tool was used to analyze the correlation between CD24 and MPM tumor marker gene expression. RT-qPCR was used to analyze the expressions of CD24 gene in human normal pleural mesothelial cell lines LP9 and MPM cell lines NCI-H28 (epithelial type), NCI-H2052 (sarcoma type), and NCI-H2452 (biphasic mixed type). RT-qPCR was performed to detect the expressions of CD24 gene in 18 cases of MPM tissues and matched normal pleural tissues. The expression difference of CD24 protein in normal mesothelial tissue and MPM tissue was analyzed by immunohistochemistry. A Kaplan-Meier model was constructed to explore the influence of CD24 gene expression on the prognosis of MPM patients, and Cox regression analysis of prognostic factors in MPM patients was performed. Results: The CD24 gene expression without TP53 mutation MPM patients was significantly higher than that of patients in TP53 mutation (P<0.05). The expression of CD24 gene in MPM was positively correlated with B cells (r(s)=0.37, P<0.001). The expression of CD24 gene had a positive correlation with the expressions of thrombospondin 2 (THBS2) (r(s)=0.26, P<0.05), and had a negative correlation with the expression of epidermal growth factor containing fibulin like extracellular matrix protein 1 (EFEMP1), mesothelin (MSLN) and calbindin 2 (CALB2) (r(s)=-0.31, -0.52, -0.43, P<0.05). RT-qPCR showed that the expression level of CD24 gene in MPM cells (NCI-H28, NCI-H2052 and NCI-H2452) was significantly higher than that in normal pleural mesothelial LP9 cells. The expression level of CD24 gene in MPM tissues was significantly higher than that in matched normal pleural tissues (P<0.05). Immunohistochemistry showed that the expressions of CD24 protein in epithelial and sarcoma MPM tissues were higher than those of matched normal pleural tissues. Compared with low expression of CD24 gene, MPM patients with high expression of CD24 gene had lower overall survival (HR=2.100, 95%CI: 1.336-3.424, P<0.05) and disease-free survival (HR=1.800, 95%CI: 1.026-2.625, P<0.05). Cox multivariate analysis showed that compared with the biphasic mixed type, the epithelial type was a protective factor for the prognosis of MPM patients (HR=0.321, 95%CI: 0.172-0.623, P<0.001). Compared with low expression of CD24 gene, high expression of CD24 gene was an independent risk factor for the prognosis of MPM patients (HR=2.412, 95%CI: 1.291-4.492, P=0.006) . Conclusion: CD24 gene and protein are highly expressed in MPM tissues, and the high expression of CD24 gene suggests poor prognosis in MPM patients.

Mesotelioma pleural maligno. Presentación de un caso y revisión de la literatura / Malignant Pleural Mesothelioma. Case Report and Literature Review

RESUMEN Los mesoteliomas pleurales son tumores primarios de células mesoteliales. Recubren la cavidad pleural, se encuentran estrechamente relacionados con la exposición al asbesto. Tienen una baja incidencia y mal pronóstico. Se presenta el caso de un paciente de 46 años, de color de piel blanca, que acudió al Hospital General Universitario Dr. Gustavo Aldereguía Lima de Cienfuegos por presentar dolor en la espalda y hombros, fiebre y pérdida de peso. En el examen físico se constató murmullo vesicular abolido en 1/3 inferior del pulmón derecho. La radiografía de tórax y la tomografía evidenciaron derrame pleural derecho de mediana a gran cuantía y engrosamiento pleural. Los estudios histológicos indicaron que la lesión era compatible con un mesotelioma pleural de variante epitelioide. El paciente se mantiene con tratamiento citostático y seguimiento en consulta. El objetivo del presente trabajo es describir el caso de un paciente con mesotelioma pleural maligno, una enfermedad tumoral rara, ingresado en el Servicio de Medicina Interna del Hospital General Universitario Dr. Gustavo Aldereguía Lima de Cienfuegos.

ABSTRACT Pleural mesotheliomas are primary mesothelial cell tumors. Lining the pleural cavity, they are closely related to asbestos exposure. They have a low incidence and poor prognosis. A 46-years-old patient, white-skinned, who attended the Dr. Gustavo Aldereguía Lima University General Hospital in Cienfuegos due to pain in the back and shoulders, fever, and weight loss is presented. The physical examination revealed an abolished vesicular murmur in the lower 1/3 of the right lung. The chest X-ray and CT scan showed a medium to large right pleural effusion and pleural thickening. Histological studies indicated that the lesion was compatible with epithelioid variant pleural mesothelioma. The patient is maintained with cytostatic treatment and follow-up in consultation. The objective of this study is to describe the case of a patient with malignant pleural mesothelioma, admitted to the Internal Medicine Service of the Dr. Gustavo Aldereguía Lima General University Hospital of Cienfuegos.

Síndrome de Doege Potter / Doege-Potter syndrome

Resumen El síndrome de Doege Potter es un síndrome caracterizado por hipoglucemia severa asociada a tumor fibroso de la pleura. Presentamos el caso de una paciente de 67 años con antecedente por biopsia de tumor fibroso de pleura, quien seis meses después de este diagnóstico presenta episodios de alteración del estado de conciencia con desorientación y documentación de hipoglucemia con triada de Whipple presente. Se realiza test de ayuno el cual es positivo para hipoglucemia no hiperinsulinémica y dado sus antecedentes, se hace el diagnóstico de un síndrome de Doege Potter. Se realiza manejo quirúrgico con resección total de masa tumoral con posterior resolución de la hipoglucemia.(Acta Med Colomb 2020; 45. DOI:https://doi.org/10.36104/amc.2020.1503).

Abstract Doege-Potter syndrome is characterized by severe hypoglycemia associated with a fibrous tumor of the pleura. We present the case of a 67-year-old patient with a history of a fibrous tumor of the pleura, diagnosed through biopsy, who six months after this diagnosis experienced episodes of altered consciousness with disorientation, and documented hypoglycemia with Whipple's triad. A fasting test was positive for non-hyperinsulinemic hypoglycemia and, given his history, he was diagnosed with Doege-Potter syndrome. He was treated surgically through total removal of the tumor mass, with subsequent resolution of the symptoms.(Acta Med Colomb 2020; 45. DOI:https://doi.org/10.36104/amc.2020.1503).

Tumor fibroso solitario gigante de pleura en paciente joven / Giant Solitary Fibrous Tumor of the Pleura in Young Patient / Tumor fibroso solitário gigante de pleura em paciente jovem

Resumen Introducción : el tumor fibroso solitario de pleura (TFSP) es una patología poco frecuente, corresponde a menos del 5 % de los tumores primarios de pleura, siendo aún más raros los tumores mayores de 15 cm y aquellos en pacientes menores de 35 años, ya que el pico de incidencia es entre los 60 a 70 años con un solo caso reportado en Colombia. Presentación del caso : paciente femenina de 33 años, sin exposición a asbesto o cigarrillo. Consultó por cuadro de disnea de moderados esfuerzos y dolor dorsal derecho. La tomografía axial computarizada (TAC) contrastada de tórax evidenció una gran masa sólida de contornos lobulados que comprometía el 70 % del hemitórax derecho de origen extrapulmonar y que comprimía la aurícula derecha, la inmunohistoquímica de la biopsia percutánea clasificó la lesión como tumor fibroso solitario. Fue llevada a toracotomía posterolateral derecha extendida, donde se encontró un tumor dependiente de la pleura parietal derecha resecado en su totalidad. Histopatología e inmunohistoquímica del producto de resección quirúrgica, compatibles con tumor fibroso solitario de pleura, tamaño 30 x 23 x 16 cm sin características de malignidad. La evolución posoperatoria fue satisfactoria, con un egreso hospitalario temprano. Discusión : en una paciente joven, el TFSP gigante es inusual, posterior a su diagnóstico, y a pesar de tener algunas características que sugerían malignidad: tamaño y origen en la pleura parietal, la resección quirúrgica fue el tratamiento indicado para este tumor, con posterior confirmación histopatológica compatible con tumor benigno.

Abstract Introduction : The solitary fibrous tumor of the pleura (SFTP) is an uncommon pathology. It corresponds to less than 5 % of the primary tumors of the pleura. Even much rare is to find one solitary fibrous tumor, of more than 15 cm in patients younger than 35 years since the incidence peak is between 60 to 70 years. There has been only one case reported in Colombia. Case presentation : The subject of study was a 33-year-old female patient, no exposure to asbestos or cigarette. The chief complaints of the patient were mild dyspnea and right dorsal pain. Thoracic contrast-enhanced computerized tomography showed a large solid mass of lobulated contours that compromised 70 % of the right hemithorax, of extrapulmonary origin compressing the right atrium. Immunohistochemistry of the percutaneous biopsy demonstrated a solitary fibrous tumor. The patient underwent an extended right posterolateral thoracotomy. We found and completely resected a tumor hanging on the right parietal pleura. Histopathology and immunohistochemistry of the product of the surgical resection were compatible with a solitary fibrous tumor of the pleura, 30 x 23 x 16cm in size, and no malignancy. The evolution after surgery was satisfactory with an early hospital discharge. Discussion : In a young patient, a giant TFSP is unusual. After diagnosis and despite having some characteristics that suggested malignancy: its size and origin in the parietal pleura, surgical resection was the appropriate procedure for this tumor, with subsequent histopathological confirmation compatible with a benign tumor.

Resumo Introdução : o tumor fibroso solitário de pleura (TFSP) é uma patologia pouco frequente, corresponde a menos do 5 % dos tumores primários de pleura, sendo ainda mais estranhos os tumores maiores de 15 cm e aqueles em pacientes menores de 35 anos, pois o pico de incidência é entre os 60 a 70 anos com um só caso reportado na Colômbia. Apresentação de caso : paciente feminina de 33 anos, sem exposição a asbesto ou cigarro. Consultou por quadro de dispneia de moderados esforços e dor dorsal direita. A tomografia axial computadorizada (TAC) contrastada de tórax evidenciou uma grande massa sólida de contornos lobulados que comprometia o 70 % do hemitórax direito de origem extrapulmonar e que comprimia a aurícula direita, imuno-histoquímica da biopsia percutânea classificou a lesão como tumor fibroso solitário. Foi levada à toracotomia posterolateral direita estendida, encontrando um tumor dependente da pleura parietal direita ressecado em sua totalidade. Histopatologia e imuno-histoquímica do produto de ressecção cirúrgica, compatíveis com tumor fibroso solitário de pleura, tamanho 30 x 23 x 16cm sem características de malignidade. A evolução pós-cirúrgica foi satisfatória, conseguindo um egresso hospitalar precoce. Discussão : em uma paciente jovem, o TFSP gigante é inusual, posterior a seu diagnóstico e apesar de ter algumas características que sugeriam malignidade; tamanho e origem na pleura parietal, a ressecção cirúrgica foi o tratamento indicado para este tumor, com posterior confirmação hispatológica compatível com tumor benigno.

CT combined with real-time ultrasound for guiding percutaneous biopsy of pleural or subpleural nodule / 中国医学影像技术

Objective: To explore the feasibility of CT combined with real-time ultrasound for guiding percutaneous needle biopsy of small pleural or peripleural nodule (SPPN). Methods: Data of 38 patients with SPPN who underwent percutaneous biopsy were retrospectively analyzed, including 17 patients underwent CT combined with ultrasound-guided biopsy (CT+US group) and 21 patients underwent CT-guided biopsy (CT group). The operation time, occupation time, the number of CT guidance, effective radiation dose generated by CT scan and postoperative complications were compared between 2 groups. Results: Compared with those of CT group, the number of CT guidance, operation time, occupation time and effective radiation dose in CT+US group were lower (all P 0.05). Conclusion: CT combined with real-time ultrasound guidance can reduce the technical difficulty of puncture, shorten the operation time and reduce radiation dose during percutaneous needle biopsy of SPPN.

The value of medical thoracoscopic pleural brushing in the diagnosis of malignant pleural effusion / 天津医药

Objective To evaluate the positive rate, reliability and safety of thoracoscope pleural brushing for diagnosing malignant pleural effusion. Methods Seventy patients with unexplained pleural effusion were performed with medical thoracoscopy:(1) Observe the visceral and parietal pleura then use disposable cell brush to obtain specimens from suspect areas and take cytological examination. (2) Observe the parietal pleura then use biopsy forceps to forceps specimens from suspect areas and take histological examination. (3) Compare the positive rate of diagnosis, coincidence rate of pathological type and complication between two methods individual and combination in diagnosis. Results In 51 patients diagnosed as malignant pleural effusion, the diagnosis-positive rate of biopsy was 88.24%(45/51) and the diagnosis-positive rate of pleural brushing cytology was 90.20%(46/51). The diagnosis-positive rate of pleural brushing combined with biopsy was 96.08%(49/51), but there was no significant difference in diagnosis-positive rate between two methods individual and combination for malignant pleural effusion (P>0.05). In 51 patients, pathological type determination rate was 76.47%(39/51) evaluated by pleural brushing, 88.24% (45/51) by biopsy, and there was no significant difference in pathological type determination rate between two methods (P>0.05). Biopsy was performed for 168 times, more bleeding was found in 5 cases (2.98%), feeling pain in 134 cases (79.76%). Pleural brushing examination was performed for 198 times, no significant bleeding and pain were found. Conclusion Medical thoracoscopic pleural brushing under direct vision is a safe and reliable method, which can be use as an effective diagnostic method for malignant pleural effusion.

Solitary fibrous tumor of the pleura: 3 case reports / fibroso solitário de pleura: relato de 3 casos

Summary Introduction: solitary fibrous tumor of the pleura (SFTP) is a rare tumor arising from mesenchymatous cells in submesothelial pleural tissue which, unlike mesothelioma, is not related to asbestos or smoking. Methods: report of four patients who underwent surgical treatment for giant SFTP and review of the pertinent literature. Results: of the four patients operated, two presented symptoms including cough, chest pain and feeling of compression, whereas the other two subjects were asymptomatic. All patients underwent complete surgical resection by wide posterolateral thoracotomy, and surgical specimens removed with minimum bleeding. None of the cases required complementary lobectomy or segmentectomy. All tumors were histologically benign. Conclusion: complete resection of the lesion is the treatment of choice in all SFTP cases. Prognosis of the benign lesion is excellent, although close follow-up is necessary. In the rarer, more aggressive forms, treatment may be complemented by adjunctive chemotherapy or radiotherapy, the benefits of which have yet to be confirmed. .

Resumo Introdução: o tumor fibroso solitário de pleura (TFSP) é um tumor raro com origem nas células mesenquimatosas do tecido pleural submesotelial, que, ao contrário do mesotelioma, não tem relação com asbesto ou tabagismo. Método: relato de caso de quatro pacientes submetidos a tratamento cirúrgico para TFSP gigante e revisão da literatura pertinente. Resultados: dos quatro pacientes operados, dois apresentaram sintomas como tosse, dores no peito e sensação de compressão enquanto os demais foram assintomáticos. Todos os pacientes foram submetidos à ressecção cirúrgica total por toracotomia posterolateral ampla, sendo os espécimes cirúrgicos removidos com mínimo sangramento. Em nenhum dos casos houve necessidade de lobectomia ou segmentectomia complementar. Todos os tumores eram histologicamente benignos. Conclusão: a ressecção total da lesão constitui o tratamento de escolha em todos os casos de TFSP. O prognóstico de lesões benignas é excelente embora o acompanhamento seja necessário. Nas formas mais raras e agressivas, o tratamento pode incluir quimioterapia ou radioterapia adjunta, cujos benefícios ainda não foram confirmados. .

Tumor fibroso localizado de pleura: reporte de un caso / Localized fibrous tumor of pleura: a case report

Fundamento: los tumores fibrosos localizados de pleura son raros, de etiología incierta; la mayoría de los pacientes con esta enfermedad sobrepasan la quinta década de vida y más de la mitad están asintomáticos al diagnóstico, principalmente cuando los tumores son pequeños. Objetivo: describir el caso de una paciente con tumor fibroso localizado de pleura que, por su edad, sintomatología y por las características histológicas del tumor, representa una situación clínica infrecuente, con dificultades para el diagnóstico. Presentación de caso: mujer saludable, de 39 años, con dolor tóraco-lumbar persistente, de un año de evolución; en radiografía de tórax se visualizó imagen retro cardíaca izquierda corroborada por tomografía computarizada. Se realizó exéresis total de una masa de 4,8 cm, pedunculada, con origen en la pleura visceral, cuyo diagnóstico histopatológico fue un tumor fibroso localizado de pleura con características quísticas. Después de varios meses de seguimiento la paciente permanecía saludable y sin signos de recurrencia. Conclusiones: este caso constituye una forma infrecuente de presentación del tumor fibroso localizado de pleura por tratarse de una paciente menor de 40 años, con una sintomatología no frecuente y por el comportamiento benigno que ha tenido el tumor aunque presentó características quísticas.

Background: localized fibrous tumors of the pleura are rare, with uncertain etiology; most of the patients with this disease exceed the fifth decade of life and more than a half are without symptoms at the diagnosis, mainly when tumors are small. Objective: to describe a case of a female patient with a diagnosis of a localized fibrous tumor of pleura in which due to her age, the symptomatology and histological features of the tumor, it represents an infrequent clinical situation with difficulties for the diagnosis. Case presentation: a 39-year-old healthy woman with one year history of persistent thoracic lumbar pain; in chest radiography a left retrocardiac image was observed and it was corroborated by chest CT scan. Total exeresis was performed in a 4.8 cm mass, pedunculated, originating from the visceral pleura, whose histopathological diagnosis was a localized fibrous tumor of the pleura with cystic features. After several months of follow-up, the patient remained healthy and did not show recurrent signs. Conclusions: this case is an infrequent presentation of a localized fibrous tumor of the pleura for having been diagnosed in a patient under 40 years old, with an infrequent symptomatology and because the tumor has shown a benign behavior even with cystic features.

A Case of a Huge Mass Due to Pleural Metastasis and Management of Dyspnea in a Patient with Terminal Breast Cancer / 한국호스피스완화의료학회지

Pleural metastasis from breast cancer is a common manifestation. While pleural effusion is the most frequent finding, it is relatively rare for pleural nodularity and plaque that do not accompany pleural effusion. We report a patient with a rapidly growing huge pleural mass without pleural effusion caused by breast cancer. The patient was treated for severe dyspnea caused by the pleural mass. Along with the case report, we performed a systematic review of management of dyspnea in terminal cancer patients.

A Case of Immunoglobulin G4-Related Disease Presenting as a Pleural Mass / 결핵및호흡기질환

Immunoglobulin G4 (IgG4)-related disease is a newly recognized condition characterized by fibroinflammatory lesions with dense lymphoplasmacytic infiltration, storiform-type fibrosis and obliterative phlebitis. The pathogenesis is not fully understood but multiple immune-mediated mechanisms are believed to contribute. This rare disease can involve various organs and pleural involvement is even rarer. We report a case of IgG4-related disease involving pleura. A 66-year-old man presented with cough and sputum production for a week. Chest radiography revealed consolidation and a pleural mass at right hemithorax. Treatment with antibiotics resolved the consolidation and respiratory symptoms disappeared, but the pleural mass was unchanged. Video-assisted thoracoscopic surgery was performed. Histopathology revealed dense lymphoplasmacytic infiltration and storiform fibrosis with numerous IgG4-bearing plasma cells. The serum IgG4 level was also elevated. Further examination ruled out the involvement of any other organ. The patient was discharged without further treatment and there is no evidence of recurrence to date.

Síndrome de Doege-Potter: hipoglicemia secundaria a tumor fibroso solitario de la pleura / Doege-Potter syndrome: hypoglycemia secondary to solitary fibrous tumor of the pleura. Report of one case

Doege-Potter syndrome is characterized for hypoglycemia associated with solitary pleural fibrous tumors. We report a 38-year-old woman with a history of weight loss, malaise and edema. After an episode of symptomatic hypoglycemia, she was admitted to the hospital, where she had new episodes of hypoglycemia. A Chest X ray and scan showed a right pleural tumor that was surgically excised. After surgery the episodes of hypoglycemia subsided. The pathological study of the tumor revealed a solitary fibrous pleural tumor. After 15 months of follow up, the patient is symptom free and without evidence of tumor relapse.

CT evaluation of benign and malignant solitary fibrous tumor of the pleura / 中华放射学杂志

Objective To analyze CT findings of solitary fibrous tumors of the pleura (SFTP) for differentiating benign and malignant lesions.Methods CT findings of 20 benign and 11 malignant SFTPs proved by pathology were retrospectively reviewed. The size,margin,internal structures,blood supplies,invasion to adjacent structures or metastasis and pleural effusion were analyzed and compared between malignant and benign groups.Results The mean diameter of malignant lesions( median diameter:13.5 cm) was larger than that of the benign ( median diameter:7.6 cm,F =6.411,P =0.017 ).Malignant lesions tended to be more heterogeneous (9/11,P =0.002),more invasive to adjacent structures ( 6/11,P =0.001 ) than benign lesions ( 4/20,0/20 ).Serpiginous vessels ( 10/11,P =0.008 ) and pleural effusion (6/11,P =0.038 )were more common in malignant lesions than those in benign lesions (8/20,3/20).Calcification could be found in both benign (2/20) and malignant lesions ( 2/11,P =0.6 ).Furthermore,3D CT angiography could show blood supplies into tumor in 12 lesions (4 benign and 8 malignant SFTPs).Conclusion CT and 3D CTA are helpful in differentiating benign from malignant SFTPs and evaluating the excision of SFTPs.

A Case of Pleural Metastasis 6 Years after Complete Surgical Resection of Invasive Thymoma / 결핵및호흡기질환

Herein, we report a case of recurrent pleural metastasis after complete resection of invasive thymoma that was successfully treated with surgical resection. Thymoma and thymic carcinoma are uncommon neoplasms derived from the epithelial cells of the thymus. Approximately 30% to 50% of thymomas are asymptomatic at the time of diagnosis. However, these cancers may present with constitutional or local pressure symptoms and sometimes with paraneoplastic syndromes, especially myasthenia gravis. Surgical resection is the mainstay of thymoma treatment and has been shown to remarkably improve long-term survival. Despite complete resection, local recurrences are frequent, and surgery is the cornerstone of therapy even in cases of recurrent thymoma. We experienced a 67-year-old male patient with pleural metastasis that developed 6 years after complete surgical resection of invasive thymoma. The pleural mass was excised by video-assisted thoracoscopic surgery. Histopathological examination revealed an invasive World Health Organization (WHO) type B2 thymoma.

Thoracic metastasis in advanced ovarian cancer: comparison between computed tomography and video-assisted thoracic surgery / 부인종양

OBJECTIVE: To determine which computed tomography (CT) imaging features predict pleural malignancy in patients with advanced epithelial ovarian carcinoma (EOC) using video-assisted thoracic surgery (VATS), pathology, and cytology findings as the reference standard. METHODS: This retrospective study included 44 patients with International Federation of Obstetrics and Gynecology (FIGO) stage III or IV primary or recurrent EOC who had chest CT < or =30 days before VATS. Two radiologists independently reviewed the CT studies and recorded the presence and size of pleural effusions and of ascites; pleural nodules, thickening, enhancement, subdiaphragmatic tumour deposits and supradiaphragmatic, mediastinal, hilar, and retroperitoneal adenopathy; and peritoneal seeding. VATS, pathology, and cytology findings constituted the reference standard. RESULTS: In 26/44 (59%) patients, pleural biopsies were malignant. Only the size of left-sided pleural effusion (reader 1: rho=-0.39, p=0.01; reader 2: rho=-0.37, p=0.01) and presence of ascites (reader 1: rho=-0.33, p=0.03; reader 2: rho=-0.35, p=0.03) were significantly associated with solid pleural metastasis. Pleural fluid cytology was malignant in 26/35 (74%) patients. Only the presence (p=0.03 for both readers) and size (reader 1: rho=0.34, p=0.04; reader 2: rho=0.33, p=0.06) of right-sided pleural effusion were associated with malignant pleural effusion. Interobserver agreement was substantial (kappa=0.78) for effusion size and moderate (kappa=0.46) for presence of solid pleural disease. No other CT features were associated with malignancy at biopsy or cytology. CONCLUSION: In patients with advanced EOC, ascites and left-sided pleural effusion size were associated with solid pleural metastasis, while the presence and size of right-sided effusion were associated with malignant pleural effusion. No other CT features evaluated were associated with pleural malignancy.

A Case of Metastatic Adenocarcinoma of the Pleura from the Exocervix without Local Recurrence / 대한내과학회지

It is very rare for an exocervical adenocarcinoma to metastasize to the lung parenchyma and pleura. A 54-year-old woman was admitted with dyspnea and left pleural effusion on chest X-ray. She had a history of exocervical adenocarcinoma 3 years previously and was treated with hysterectomy, chemotherapy, and radiation therapy. Last year, she was diagnosed with a left vestibular schwannoma and underwent subtotal mass removal surgery. After admission, metastatic adenocarcinoma of the pleura was diagnosed by video-assisted thoracic surgery biopsy. We herein report the rare case of exocervical adenocarcinoma that presented as a metastatic lesion to the pleura 3 years after the initial diagnosis.

Low Grade Fibromyxoid Sarcoma of the Visceral Pleura: A case report / 대한흉부외과학회지

Low grade fibromyxoid sarcoma (LGFM) is a rare, deep soft-tissue malignant tumor. Although its histologic features are benign, the clinical course is malignant. The usual tumor locations are the lower extremity and chest wall. LGFM originating from the visceral pleura is extremely rare. We report here on a 37 year old man with a LGFM of the visceral pleura. Thirty three months after surgery, the patient is alive without any sign of local recurrence or distant metastasis.

Malignant Pleural Mesothelioma with Heterologous Osteoblastic Differentiation: Case Report of the Characteristic CT and Bone Scan Findings

Malignant pleural mesothelioma is an uncommon neoplasm which is accompanied extremely rarely by osteoblastic heterologous elements. The CT manifestations of this tumor have been reported in several references. And, to our knowledge, only one case report provides a description of the bone scan findings. Here, we report the case of a rapidly progressing malignant pleural mesothelioma with heterologous osteoblastic elements. A CT scan reveals diffuse irregular pleural thickening and very coarse nodular calcifications along the right pleura and major fissure. A bone scan revealed an area of extensive increased radioactivity consistent with the pleural calcifications on the CT scan in the right hemithorax. A follow-up CT scan performed 40 days later suggests the presence of rapidly progressing nodular coarse calcifications.

Clinical and pathological analysis of solitary fibrous tumor of the pleura / 中华胸心血管外科杂志

Objective To investigate appropriate diagnosis and treatment of solitary fibrous tumor of the pleura (SFTP).Methods Clinical and pathological data of ten patients treated in our hospital from 2002 to 2007 were reviewed. Results Our series consisted of three men and seven women. In two patients correct diagnosis was made before operation through ultrasonography-gnided core needle biopsy. All the patients were treated surgically including three resected by video-assisted thoracic surgery (VATS). Histopathologically, five tumors were malignant and the other five were benign. Immunohistochemical staining showed malignant SFTP (3/5) were less frequently positive for CD34 than benign group (5/5). Nestin was only detected in malignancies (2/5), which were negative for CD34. Except for one, all patients were followed-up for 6 to 35 months (mean 17.3 months). One patient experienced a recurrence and one died of brain metastasis. Conclusion Ultrasonography-guided core needle biopsy combined with immunohistochemical analysis is a safe and rapid method to provide a confirmatory diagnosis before surgery. For smaller, pedunculated tumors, VATS may be a bettor approach. Besides, we speculated CD34-negative and nestin-posifive might be a malignant marker for SFTP.

Surgical Resection of Solitary Fibrous Tumors of the Pleura / 대한흉부외과학회지

BACKGROUND: Solitary fibrous tumors of the pleura (SFTP) is one of rare neoplasms that originated from submesothelial mesenchyme. Clinical course or extent of surgical resection is not well known. MATERIAL ANDMETHOD: We retrospectively reviewed all the clinical records of the patients who had undergone surgical resection of benign and malignant SFTP. RESULT: Twenty two (male : female 14 : 8) patients were enrolled and mean age was 50.2 (range 25~83). Number of symptomatic patients at the time of diagnosis was 13 (59%) and the most common symptom was dyspnea. Operative approach was carried out through thoracotomy (n=14) or video-assisted thoracic surgery (n=8). Mass excision was performed in 12 cases and en bloc resection including adjacent structure in 10 cases. In all cases complete resection was performed. There was no operative mortality. Malignant SFTP were 11 cases and benign SFTP 11 cases. Local recurrences (n=2) or distant metastasis (n=6) occurred only in malignant SFTP. CONCLUSION: Number of symptomatic patients, en bloc resection, and recurrence was more in malignant SFTP. Although complete surgical resection is known as treatment of choice for SFTP, further study should be performed about systemic therapeutic modalities pre- or postoperatively to control recurrence and metastasis.

Multimodal Treatment of Pleuropulmonary Blastoma: Two case report / 대한흉부외과학회지

Pleuropulmonary blastoma (PPB) is a rare intrathoracic neoplasm, found solely in childhood. The usual symptoms are dyspnea, chest discomfort, recurrent respiratory infections, fever, dry cough, and chest pain. The progress of PPB is usually aggressive and its progress is generally poor. Lymphatic spread to the hilar and mediastinal nodes can occur. Distant metastasis is found in brain, bones, and intra-abdominal organs. Surgical resection is the treatment of choice. When the disease is too extensive for surgical resection, neoadjuvant chemotherapy can be used. We report 2 cases of pleuropulmonary blastoma in children successfully treated with multimodal therapy.