中华病理学杂志Pub Date : 2025-06-08DOI: 10.3760/cma.j.cn112151-20240930-00650
S D Zhang, L J He, L Chen
{"title":"[Interpretation of the soft tissue specific tumors in the 5th WHO classification of pediatric tumors].","authors":"S D Zhang, L J He, L Chen","doi":"10.3760/cma.j.cn112151-20240930-00650","DOIUrl":"10.3760/cma.j.cn112151-20240930-00650","url":null,"abstract":"<p><p>The latest published WHO Classification of Pediatric Tumors is the first to be independent of the WHO Classification of Tumors in adults, serving as an independent volume that covers the latest advances in clinical characteristics, histopathology, molecular pathology, pathogenesis, and treatment of multiple systems, multiple types of pediatric tumors. Among them, soft tissue tumors have been updated based on the Edition Ⅴ of WHO Classification of Tumors of Soft Tissue and Bone, and some molecularly defined pediatric soft tissue tumors have been emphasized. This article, based on literature, mainly interprets the specific types of tumors that occur exclusively in children in the WHO Classification of Pediatric Tumors of Soft Tissue.</p>","PeriodicalId":35997,"journal":{"name":"中华病理学杂志","volume":"54 6","pages":"568-574"},"PeriodicalIF":0.0,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144267501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
中华病理学杂志Pub Date : 2025-06-08DOI: 10.3760/cma.j.cn112151-20241203-00813
Z Y Liu, D G Liu
{"title":"[Advances in thyroid cytopathology in China over the last ten years: retrospect and prospect].","authors":"Z Y Liu, D G Liu","doi":"10.3760/cma.j.cn112151-20241203-00813","DOIUrl":"https://doi.org/10.3760/cma.j.cn112151-20241203-00813","url":null,"abstract":"<p><p>Over the last ten years, China has made significant breakthroughs in the construction of a standardized diagnosis and treatment system and technological innovation in thyroid tumor cytology. In terms of diagnostic techniques, a standardized process combining manual smears and liquid-based cytology has been established. The combination of hematoxylin-eosin staining and cell block technology has significantly improved diagnostic accuracy, while immunocytochemical staining plays an important role in the differential diagnosis of difficult cases. The molecular pathology detection system has achieved leapfrog development, evolving from single-gene BRAF detection to a multi-gene panel covering BRAF, TERT and RAS genes. The application of next-generation sequencing and other new technologies has significantly improved preoperative diagnostic efficacy. The publication of the \"Expert consensus on the cytopathological diagnosis of thyroid-fine needle aspiration (version 2023)\" has further promoted the standardization of thyroid cytology diagnosis in China. Meanwhile, Chinese scholars have made breakthroughs in the field of medical artificial intelligence. A self-developed deep learning model was published in <i>The Lancet Digital Health</i>, achieving a diagnostic accuracy of 96.8% in differentiating benign and malignant thyroid nodules. A series of high-impact research results published in journals such as the <i>Chinese Journal of Pathology</i> marks China's entry into the international forefront in this field.</p>","PeriodicalId":35997,"journal":{"name":"中华病理学杂志","volume":"54 6","pages":"575-579"},"PeriodicalIF":0.0,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144267535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
中华病理学杂志Pub Date : 2025-06-08DOI: 10.3760/cma.j.cn112151-20241116-00760
F L Zang, Y Wang, X Y Wei, Y L Wang, Y Luo, Y H Guo, T T Ding
{"title":"[Cytokeratin (pan)-positive EWSR1/FUS::CREB fusion malignant tumor in abdominopelvic cavity: a clinicopathological and molecular analysis of four cases].","authors":"F L Zang, Y Wang, X Y Wei, Y L Wang, Y Luo, Y H Guo, T T Ding","doi":"10.3760/cma.j.cn112151-20241116-00760","DOIUrl":"10.3760/cma.j.cn112151-20241116-00760","url":null,"abstract":"<p><p><b>Objective:</b> To investigate the clinicopathological and molecular genetic characteristics of pan cytokeratin (CKpan)-positive EWSR1/FUS::CREB fusion malignant tumors in abdominopelvic cavity. <b>Methods:</b> Four cases of malignant tumor with CKpan-positive EWSR1/FUS::CREB fusion were selected from January 2019 to July 2024 in the Department of Pathology, Tianjin Medical University Cancer Hospital, Tianjin, China. Their clinical, pathological, and immunohistochemical characteristics were examined. Their molecular genetic characteristics were analyzed using fluorescence in situ hybridization (FISH) and next-generation sequencing (NGS). <b>Results:</b> Among the 4 patients, there were 2 males and 2 females, aged 44, 44, 48 and 66 years, respectively. The tumor sites included 1 case located between the stomach and transverse colon, 1 case on the serous surface of the gastric wall, 1 case in the transverse mesocolon, and 1 case in transverse mesocolon and small mesentery. The clinical manifestations were mostly abdominal distension and abdominal pain. The maximum diameter of the tumor in the surgical resection specimen was 3.5-8.5 cm. The tumor's cut surface was grayish-white and gray-yellow in color, with medium consistency. Microscopically, the tumor cells were mainly composed of epithelioid tumor cells, and 2 of the tumors showed that tumor cells arranged in a solid sheet or multinodular pattern, and the cytoplasm of the tumor cells was abundant, lightly stained, and the boundaries were unclear, accompanied by the formation of capsules or microcapsules, and lymphocyte and plasma cell sleeves were seen. In one case, the pseudopapillary arrangement was present, and the tumor cells were radially distributed around the fibrovascular axis. In another case, it was arranged in a pseudoacinar pattern, and the nest was surrounded by slender reticular fibers. Immunohistochemistry showed that tumor cells expressed CKpan (4/4) and WT1 (4/4, including 1 focal positive). Vimentin, CK8/18, D2-40 and S-100 were expressed in various intensities, while Calretinin was locally positive or negative. FISH showed that 2 cases had EWSR1 break-apart and 2 cases had FUS break-apart. NGS confirmed the presence of EWSR1::CREM fusion (1 case) and FUS::CREM fusion (2 cases), respectively. Except for 1 recently diagnosed case, 3 cases were followed up: 1 patient died due to tumor recurrence and metastasis (overall survival was 33 months), and 2 patients survived (1 case had recurrence 58 months after surgery, and 1 case had no recurrence or metastasis after surgery). <b>Conclusions:</b> CKpan-positive EWSR1/FUS::CREB fusion malignant tumor is a rare malignancy tumor with undetermined classification that tends to occur in the abdominopelvic cavity and often involves the gastrointestinal tract. Molecular testing such as FISH and NGS is helpful for a definitive diagnosis.</p>","PeriodicalId":35997,"journal":{"name":"中华病理学杂志","volume":"54 6","pages":"626-631"},"PeriodicalIF":0.0,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144267542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
中华病理学杂志Pub Date : 2025-06-08DOI: 10.3760/cma.j.cn112151-20241118-00764
Z J Duan, J Feng, J P Zhang, C X Yan, F J Liu, Z Ma, L Xiang, Z J Hu, J J Yang, X L Qi
{"title":"[DICER1-mutant primary intracranial sarcoma: analysis of five cases].","authors":"Z J Duan, J Feng, J P Zhang, C X Yan, F J Liu, Z Ma, L Xiang, Z J Hu, J J Yang, X L Qi","doi":"10.3760/cma.j.cn112151-20241118-00764","DOIUrl":"10.3760/cma.j.cn112151-20241118-00764","url":null,"abstract":"<p><p><b>Objective:</b> To investigate the clinicopathological characteristics and differential diagnosis of DICER1-mutant primary intracranial sarcoma. <b>Methods:</b> Five cases of DICER1-mutant primary intracranial sarcoma at Sanbo Brain Hospital, Capital Medical University, Beijing, China during May 2013 to November 2024 were collected. The clinical and imaging data were retrieved. Histological evaluation, immunohistochemical staining and next generation sequencing were performed. Additionally, a literature review was conducted. <b>Results:</b> All five DICER1-mutant primary intracranial sarcomas were located in the supratentorial region, with one case involving the basal ganglia. There were two males and three females. The median age at diagnosis was 25 (14.0, 30.5) years. Morphologically, they were characterized by high-grade spindle cell sarcoma, with brisk mitotic activity and cytoplasmic eosinophilic globules. Myxoid degeneration, necrosis, and invasion into surrounding brain tissue were observed in some cases. The tumor cells showed diffuse staining of vimentin and variable expression of myogenic marker (desmin), with or without focal MyoD1 and/or Myogenin expression. Four tumors exhibited diffuse, strong expression of TLE1 and p53, while only three tumors showed loss of ATRX (nuclear) expression. Two cases showed mosaic loss of H3K27me3 expression in neoplastic cells. The Ki-67 proliferation index was high (40%-80%). Various neuronal markers, such as synaptophysin, NF, SOX2 and MAP2, were expressed in all tumor samples. Genetically, all tumors samples harbored biallelic abnormalities of DICER1. One was a hotspot missense mutation in the RNase Ⅲb domain within exon 25 on one allele (p.E1813 or p.D1810), while the other allele had mutations including a germline mutation in one case, a somatic mutation in two cases, and a copy number deletion in two cases. In addition, these sarcomas showed alterations in TP53 (4/5), ATRX (3/5), and the genes of the mitogen-activated protein kinase pathway (3/5). Finally, all five cases were diagnosed as DICER1-mutant primary intracranial sarcoma. All patients underwent craniotomy that led to complete tumor resection. Three patients received adjuvant radiotherapy and chemotherapy, with progression-free survival time of 28, 48, and 50 months, respectively. Patient 2 succumbed to the tumor after 3 months post-surgery due to rapid progression and tumor dissemination. Patient 5 was lost to follow-up 3 months after the surgery. <b>Conclusions:</b> DICER1-mutant primary intracranial sarcoma is a newly defined tumor entity in the fifth edition of the World Health Organization Classification of Central Nervous System Tumors, and commonly occurs in children and young adults. High-grade malignant spindle cells are their typical morphological feature. Eosinophilic cytoplasmic globules and myogenic differentiation can help establish the diagnosis. This study suggests that DICER1-mutant primary intracranial sarcomas e","PeriodicalId":35997,"journal":{"name":"中华病理学杂志","volume":"54 6","pages":"632-639"},"PeriodicalIF":0.0,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144267499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
中华病理学杂志Pub Date : 2025-06-08DOI: 10.3760/cma.j.cn112151-20241201-00803
S S Cheng, Z S Wang, Q Y Liu, P G Ning, M Li, M H Zheng, Y Wang
{"title":"[Male non gestational choriocarcinoma with widespread systemic metastasis: report of two cases].","authors":"S S Cheng, Z S Wang, Q Y Liu, P G Ning, M Li, M H Zheng, Y Wang","doi":"10.3760/cma.j.cn112151-20241201-00803","DOIUrl":"10.3760/cma.j.cn112151-20241201-00803","url":null,"abstract":"","PeriodicalId":35997,"journal":{"name":"中华病理学杂志","volume":"54 6","pages":"661-663"},"PeriodicalIF":0.0,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144267502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
中华病理学杂志Pub Date : 2025-06-08DOI: 10.3760/cma.j.cn112151-20250122-00055
R F Dong, Y B Su, Z Y Wang, X Q Sun, Y Ding
{"title":"[Malignant transformation of polyostotic fibrous dysplasia in long bone: a clinicopathological analysis of four cases].","authors":"R F Dong, Y B Su, Z Y Wang, X Q Sun, Y Ding","doi":"10.3760/cma.j.cn112151-20250122-00055","DOIUrl":"10.3760/cma.j.cn112151-20250122-00055","url":null,"abstract":"<p><p><b>Objective:</b> To investigate the clinicopathological and genetic characteristics of malignant transformation of polyostotic fibrous dysplasia (FD) in long bone. <b>Methods:</b> A retrospective analysis of clinical characteristics and morphological features was conducted from 4 cases of malignant transformation of FD diagnosed at Beijing Jishuitan Hospital from January 2016 to December 2023. Hotspot mutations for GNAS gene were tested in 4 cases by Sanger sequencing, in which both FD and malignant tissues were detected in 3 cases respectively. <b>Results:</b> There were 2 female and 2 male patients, aged 46 to 53 years [mean (49±3.2) years], and the course of the disease spanned from 2 months to 36 years. The tumor involved the femur (<i>n</i>=2), tibia (<i>n</i>=1) and humerus (<i>n</i>=1). Three of them were diagnosed with FD before surgery. Single photon emission computed tomography showed multiple increases in bone metabolism, CT showed poorly margin, cortical destruction and soft tissue mass with uneven enhancement. Three cases had both FD and sarcoma components, while the remaining case exhibited exclusively sarcoma. The sarcomas displayed significant morphological variation, with 1 case diagnosed as osteosarcoma and 3 cases classified as low to high grade spindle cell sarcoma. Immunohistochemical results did not provide any indications for clear classification. Sanger sequencing demonstrated GNAS mutations of p.R201H (c.CGT>CAT, <i>n</i>=2) and p.R201C (c.CGT>TGT, <i>n</i>=2). All 4 cases were followed-up for 18 to 76 months, and received chemotherapy after surgery; 2 cases maintained disease-free, one case was diagnosed with invasive breast cancer through a core needle biopsy 3 months after chemotherapy, and another one was found to relapse 18 months after surgery. <b>Conclusions:</b> Some cases of polyostotic FD occur in association with café-au-lait macules and/or endocrine hyperfunctioning in McCune-Albright syndrome (MAS); polyostotic FD and MAS have more malignant potential than monostotic FD, but they are not the risk factors for FD malignancy. GNAS mutations may be involved in the occurrence and development of FD. The histologic types of malignant transformation of polyostotic FD in long bone are diverse, the sarcoma components of FD also present the GNAS mutation, suggesting potential involvement in the pathogenesis of FD malignancy.</p>","PeriodicalId":35997,"journal":{"name":"中华病理学杂志","volume":"54 6","pages":"593-598"},"PeriodicalIF":0.0,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144267503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
中华病理学杂志Pub Date : 2025-06-08DOI: 10.3760/cma.j.cn112151-20241104-00726
H Y Ma, S Shi, Y Y Li, M Y Yang, J Sun, Z G Zhang
{"title":"[AKT1 E17K mutation of mucinous adenocarcinoma of the upper lip: report of a case].","authors":"H Y Ma, S Shi, Y Y Li, M Y Yang, J Sun, Z G Zhang","doi":"10.3760/cma.j.cn112151-20241104-00726","DOIUrl":"10.3760/cma.j.cn112151-20241104-00726","url":null,"abstract":"","PeriodicalId":35997,"journal":{"name":"中华病理学杂志","volume":"54 6","pages":"655-657"},"PeriodicalIF":0.0,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144267536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
中华病理学杂志Pub Date : 2025-05-08DOI: 10.3760/cma.j.cn112151-20241209-00835
X R Li, X L Liu, Z Wang, Z H Guo, Y X Jiang, Y J Li, W Zhang, W J Yu
{"title":"[Clinicopathological and molecular characteristics of renal cell carcinomas with TFEB gene amplification].","authors":"X R Li, X L Liu, Z Wang, Z H Guo, Y X Jiang, Y J Li, W Zhang, W J Yu","doi":"10.3760/cma.j.cn112151-20241209-00835","DOIUrl":"https://doi.org/10.3760/cma.j.cn112151-20241209-00835","url":null,"abstract":"<p><p><b>Objective:</b> To investigate the clinicopathological characteristics, molecular features, differential diagnosis and prognosis of renal cell carcinoma (RCC) with TFEB gene amplification. <b>Methods:</b> A total of 113 cases of unclassified RCCs and RCCs with TFEB positive expression were collected from the Affiliated Hospital of Qingdao University and Navy 971 Hospital from January 2010 to December 2024. Eight cases of RCCs with TFEB amplification were identified using tissue microarrays, immunohistochemistry, and fluorescence in situ hybridization (FISH) techniques. The clinicopathological data and prognosis of the 8 cases were summarized, and relevant literature was reviewed. <b>Results:</b> Among the 8 cases, there were 5 males and 3 females. The average age was 63.4 (54, 77) year and the median age was 63.5 (59.0, 65.5) year. Seven cases were detected through physical examination, and 1 case presented with initial symptoms of metastasis to bones and lungs. The cohort included 1 biopsy specimen and 7 surgical resection specimens. The tumor diameters ranged from 2.5 to 15.0 cm. The cut surfaces of 5 cases were grayish-yellow or grayish-red, and 2 cases exhibited a colorful appearance, among which 3 cases involved renal sinus and 1 case showed invasion of the perirenal fat tissue. Microscopically, 4 cases were composed of clear cells arranged in solid sheets or acinar structures, along with varying numbers of eosinophilic cells. Two cases exhibited the morphology of high-grade eosinophilic RCC, and 1 case presented biphasic morphology with diffuse polygonal eosinophilic tumor cells and dense small cell components. The remaining 1 case exhibited the morphology of clear cell RCC. According to the WHO/ISUP nuclear grading system, 6 cases were Grade 3 and 2 cases were Grade 2. Multifocal necrosis was observed in 4 cases. In 4 surgical specimens, the tumor tissue invaded the renal parenchyma, with 2 cases showing nodular infiltration to surrounding tissues and 1 case with intravascular tumor thrombus. Immunohistochemical results showed varying degrees of TFEB nuclear positivity in 6 cases (6/8). Melanocytic markers such as Melan A (5/8) and HMB45 (3/8) were expressed at varying degrees. Cathepsin K (6/8), GPNMB (6/8), P504s (7/8) and CD10 (7/8) were positively expressed in most cases. FISH results revealed high-copy amplification of TFEB gene in 4 cases (partially showing clustered amplification) and low-copy amplification in 4 cases. During the follow-up period of 3 to 64 months of the 8 cases, 3 cases metastasized and 2 cases died of disease (both with high-copy TFEB gene amplification). <b>Conclusions:</b> RCC with TFEB gene amplification is rare and exhibits diverse morphological features. A common morphological characteristic of this type of tumor is a mixture of sheet-like clear cells and high nuclear grade eosinophilic cells. Combined immunohistochemical staining for TFEB, melanocytic markers, and GPNMB is helpful for the diagnosis o","PeriodicalId":35997,"journal":{"name":"中华病理学杂志","volume":"54 5","pages":"512-517"},"PeriodicalIF":0.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143989446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
中华病理学杂志Pub Date : 2025-05-08DOI: 10.3760/cma.j.cn112151-20241023-00696
S N Zhao, C Y Wu, L K Hou, H K Xie, W Wu, W Zhang, L P Zhang
{"title":"[Characteristics of non-small cell lung carcinoma with trophoblastic differentiation in males: a clinicopathological analysis of 16 cases].","authors":"S N Zhao, C Y Wu, L K Hou, H K Xie, W Wu, W Zhang, L P Zhang","doi":"10.3760/cma.j.cn112151-20241023-00696","DOIUrl":"https://doi.org/10.3760/cma.j.cn112151-20241023-00696","url":null,"abstract":"<p><p><b>Objective:</b> To investigate the clinical pathological features, immunophenotypes, diagnosis, and differential diagnosis of non-small cell lung carcinoma (NSCLC) with trophoblastic differentiation in males, and to improve the understanding of this rare disease. <b>Methods:</b> The clinical and pathological features of 16 NSCLC with trophoblastic differentiation in males diagnosed in Shanghai Pulmonary Hospital from January 2017 to December 2023 were retrospectively analyzed. Relevant literature was reviewed. <b>Results:</b> All 16 patients were male, with an onset median age of 66.5 (56.8, 68.8) years. They had no known personal history of cancer. Among the 8 resected NSCLC with trophoblastic differentiation, 3 showed concurrent lung adenocarcinoma, and 1 showed concurrent lung squamous cell carcinoma. Among the 10 patients who underwent serum β human chorionic gonadotropin (β-HCG) testing after the surgery or biopsy, 7 had significantly increased β-HCG. On gross examination, the tumors were hemorrhagic and necrotic, resembling a hematoma, with a medium texture, clear boundaries and no capsules. At low magnification, tumor cells were arranged in a nested or solid pattern. Those cells often showed massive bleeding, necrosis, and vascular infiltration. They were composed of two types of cells, namely cytotrophoblast and syncytiotrophoblast cells. At high magnification, the tumor cells showed large nuclei and hyperchromatia. They also had rich purple blue to bichromatic cytoplasm, eosinophilic nucleoli, and sometimes bizarre nuclei. The syncytiotrophoblast cells expressed β-HCG, CKpan, GATA3, CD10, and SALL4. Fourteen patients were followed up for 1-37 months. Two of them died, while three showed distant metastasis. <b>Conclusions:</b> NSCLC with trophoblastic differentiation in males is a rare and highly malignant tumor, poorly understood with difficulty in diagnosis. It requires comprehensive histological analysis in combination with clinical and imaging studies. Properly diagnosing this disease relies on recognition of its histopathological characteristics, including large areas of bleeding and necrosis, large and peculiar syncytial trophoblast cells, and varying degrees of β-HCG expression. It seems that β-HCG expression is very valuable for diagnosing this rare tumor.</p>","PeriodicalId":35997,"journal":{"name":"中华病理学杂志","volume":"54 5","pages":"482-487"},"PeriodicalIF":0.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144039855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
中华病理学杂志Pub Date : 2025-05-08DOI: 10.3760/cma.j.cn112151-20240813-00512
M M Tian, Z Y Wang, T T Zhang, D L Gao, J H Wu, Y Ding
{"title":"[Detection of PIK3CA gene mutation by fluorescence PCR and its application in molecular diagnosis of macrodactyly].","authors":"M M Tian, Z Y Wang, T T Zhang, D L Gao, J H Wu, Y Ding","doi":"10.3760/cma.j.cn112151-20240813-00512","DOIUrl":"https://doi.org/10.3760/cma.j.cn112151-20240813-00512","url":null,"abstract":"","PeriodicalId":35997,"journal":{"name":"中华病理学杂志","volume":"54 5","pages":"524-526"},"PeriodicalIF":0.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144039471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}