Primary Desmoplastic Small Round Cell Tumor of the Femur: Case Report and Review of a Rare Intraosseous Malignancy [0.03%]
股骨原发性纤维上皮性小圆细胞肿瘤：一例罕见的瘤骨恶性肿瘤的病例报告及文献回顾
Aarti E Sharma,John A deVries,Caitlin Agrawal et al.
Aarti E Sharma et al.
Background: Desmoplastic small round cell tumors (DSRCT) are malignant neoplasms of young males arising most commonly in the abdominopelvic cavity, with a subset originating from extra-abdominal soft tissues. As either primary or metastatic...
Intramuscular Tenosynovial Giant Cell Tumor Harboring a Novel CSF1-CD96 Fusion Transcript [0.03%]
肌肉内腱鞘巨细胞瘤携带新型的CSF1-CD96融合转录本
Haider Mejbel,Gene P Siegal,Shi Wei
Haider Mejbel
Tenosynovial giant cell tumors typically arise in the synovium of joints, bursae, or tendon sheaths. They may occur in an intra- or extra-articular location and can be divided into localized and diffuse types. The neoplastic nature of the l...
Diffuse Pagetoid Squamous Cell Carcinoma in Situ of the Esophagus: A Rare Case Report and Review of Literature [0.03%]
食管弥漫性Paget样上皮内鳞状细胞癌：一例罕见病例报告及文献复习
Irene Y Chen,Nicholas Bartell,Mark G Ettel
Irene Y Chen
Squamous cell carcinoma in situ (SCCIS) with diffuse pagetoid features has been well-described in skin and external genitalia. Diffuse pagetoid SCCIS of the esophagus is extremely rare with only two cases published in the English literature...
Expanding the Immunophenotype Spectrum of SMARCA4-Deficient Non-Small Cell Lung Carcinomas: A Case Series with Neuroendocrine Markers Expression [0.03%]
SMARCA4缺陷型非小细胞肺癌的免疫表型谱系扩展：具有神经内分泌标志物表达的一系列病例研究
Ruiqi Mao,Min Liu,Xiangfang Shu et al.
Ruiqi Mao et al.
Aims. In recent years, SMARCA4-deficient nonsmall cell lung cancer (NSCLC) has been recognized as a distinct new subtype of lung cancer, which is characterized by loss of SMARCA4 (Brahma-related gene-1 [BRG1]) protein expression. Only a lim...
Undifferentiated Melanoma Resembling Undifferentiated Round Cell Sarcoma: The Diagnostic Power of Molecular Melanoma Signature [0.03%]
未分化黑素瘤类似于未分化的圆形细胞肉瘤：分子黑素瘤标签的诊断作用
Altan Kavuncuoglu,Ceren Damla Durmaz,Ozay Gokoz et al.
Altan Kavuncuoglu et al.
Melanomas presenting in primary or metastatic sites with a poorly differentiated histology comprise dedifferentiated (DM) and undifferentiated melanomas (UM), the latter consisting purely of undifferentiated cells and totally lacking immuno...
Acute Appendicitis with Neuronal Hyperplasia and Swelling: A Novel Histologic Mimic of Appendiceal Goblet Cell Adenocarcinoma and Signet-Ring Cell Adenocarcinoma [0.03%]
急性阑尾炎伴有神经元增生和肿胀：一种新型的组织学改变类似阑尾粘液细胞腺癌和印戒细胞腺癌的方式
Anupam Mitra,Han S Lee,Karen Matsukuma
Anupam Mitra
Goblet cell adenocarcinoma and signet-ring cell adenocarcinoma are well-known diagnostic pitfalls of routine appendectomy specimens. Here we present a case of acute appendicitis with prominent neuronal (ganglion cell) hyperplasia and swelli...
Primary Epithelioid Rhabdomyosarcoma of the Liver: Case Report of an Unusual Histological Variant [0.03%]
肝脏原发性上皮样横纹肌肉瘤一例少见组织学变异报告
Harumi Nakamura,Yuki Koyanagi,Masanori Kitamura et al.
Harumi Nakamura et al.
Rhabdomyosarcoma (RMS) is a soft tissue tumor with striated muscle cell differentiation. It mostly occurs in children. While it can affect any part of the body, it commonly involves the urogenital organs, head and neck including the paramen...
An Unusual Case of Desmoplastic Melanoma With Monster Cells Imitating an Atypical Fibroxanthoma [0.03%]
具有类似特异性纤维黄色瘤的巨人细胞的异常梭形细胞黑色素瘤一例报告
Juan J Ríos-Martín,Manuel Pérez-Pérez,Sebastián Umbría-Jiménez et al.
Juan J Ríos-Martín et al.
Numerous cells with very large and irregular nuclei ("monster" cells) have not hitherto been reported in desmoplastic melanoma (DM). Their prognostic significance in melanomas is a matter of debate, although some authors have associated the...
Complex Fibroadenoma with Pronounced Squamous Metaplasia: A Rare Case Report, Differential Diagnostic Considerations, and Associated Breast Cancer Risk [0.03%]
伴有明显鳞状转化的复杂纤维腺瘤：一个罕见病例报道，鉴别诊断及相关的乳腺癌风险
Christopher Humphries,Danielle Robinson Petty,Wencheng Li
Christopher Humphries
Squamous metaplasia of the breast is a rare and unusual finding. A number of benign and malignant differential entities exist when squamous cells are present in a breast lesion. Our patient was found to have pronounced squamous metaplasia a...
Renal Oncocytoma With Both Lymphovascular Invasion and Prominent Intracytoplasmic Vacuole-Like Spaces: A Case Report and Review of the Literature [0.03%]
具有淋巴管浸润和明显的细胞质空泡状空间的肾嫌色细胞瘤一例并文献复习
Xunda Luo,Christopher Preciado,Anupma Nayak et al.
Xunda Luo et al.
Here we report a case of renal oncocytoma in a 68 year-old male. The diagnosis was initially made on a needle biopsy 6 years prior to the partial nephrectomy. The case is unique that in addition to the gross and microscopic features commonl...