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Z Jia, C J Zhang, C G Xi, Y Q Gong, K W Yang, D Peng, L B Liu, J Li, X S Li, Z S He, L Q Zhou
Objective: To study the clinical characteristics, image findings, therapeutic method and prognosis of metanephric adenoma. Method: The clinical characteristic, image findings, operation methods and prognosis of 16 metanephric adenoma patients treated at Department of Urology, Peking University First Hospital from January 2004 to March 2016 were analyzed retrospectively. Results: There were 6 male and 10 female patients in the study. The mean age of patients was 33.7 years (ranging from 14 to 83 years). Two patients came to the hospital because of fever, while other 14 patients had no symptoms and found renal tumor by medical examination...
March 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
Q Zhou, F Shi, H Y Zhao, Y Li, Q K Song
Objective: To analyze the relationship between clinicopathologic characteristics of pseudomyxoma peritonei (PMP) and its prognosis. Methods: Fifty-two cases of PMP collected from 2012 to 2017 at Beijing Shijitan Hospital, Capital Medical University were reviewed using the diagnostic criteria of WHO 2010. The histopathologic features, including original location, neural invasion and calcification were observed; and the relationship with prognosis was analyzed. Immunohistochemical staining for CK7, CK20 and CDX2 was performed on all cases...
March 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
Karan Lal, Travis J Morrell, Michael Cunningham, Patrick OʼDonnell, Nikki A Levin, Kristine M Cornejo
Cutaneous mixed tumor (chondroid syringoma) is the cutaneous counterpart of pleomorphic adenoma of salivary glands, comprised of both epithelial and mesenchymal components. Malignant transformation is exceptionally rare, with only a few cases reported. We report a case of a malignant cutaneous mixed tumor in an 86-year-old white man who presented with a pink indurated plaque on his left scapula. He had a history of nonmelanoma skin cancers, a stage IB malignant melanoma of a lower extremity and Gleason 4 + 3 prostate cancer treated with brachytherapy, external beam irradiation, and bicalutamide...
March 6, 2018: American Journal of Dermatopathology
Taku Naiki, Toshiki Etani, Aya Naiki-Ito, Kana Fujii, Ryosuke Ando, Keitaro Iida, Takashi Nagai, Yosuke Sugiyama, Motoo Nakagawa, Noriyasu Kawai, Takahiro Yasui
The prognostic significance of glandular differentiation in urothelial carcinoma (UC) is controversial, and thus far there is no established treatment strategy against metastasis of glandular component. We describe here a case of metastatic UC with glandular differentiation that had histological disappearance of adenocarcinoma components at autopsy after sequential chemotherapy with S-1 and cisplatin (CDDP) and with mFOLFOX6 (fluorouracil, oxaliplatin, and leucovorin) plus bevacizumab (mFOLFOX6+Bev). A 62-year-old Asian male was diagnosed with invasive UC with glandular differentiation (T2N0M0) by radical cystectomy and ileal conduit, and careful follow-up observation was made...
September 2017: Case Reports in Oncology
Long-Zi Liu, Liu-Xiao Yang, Bo-Hao Zheng, Ping-Ping Dong, Xin-Yang Liu, Zhi-Chao Wang, Jian Zhou, Jia Fan, Xiao-Ying Wang, Qiang Gao
BACKGROUND AND OBJECTIVES: Frequently aberrant expression of cytokeratin 7 (CK7) and cytokeratin 19 (CK19) have been observed in several human cancers. In this retrospective study, we aimed at investigating the prognostic significance of CK7 and CK19 in intrahepatic cholangiocarcinoma (ICC). METHODS: Immunohistochemistry was performed to assess CK7 and CK19 expression on tissue microarrays in training cohort enrolling 214 ICC patients and validation cohort comprising 108 ICC patients...
March 7, 2018: Journal of Surgical Oncology
Aránzazu Lafuente-Sanchis, Miriam Estors-Guerrero, Ángel Zúñiga, Néstor J Martínez-Hernández, Antonio Cremades, Francisco Aparisi-Aparisi, José M Galbis-Caravajal
OBJECTIVES: Metastatic affectation of lymph node is the main prognostic factor in localized lung cancer. A pathologic study of the obtained samples, even after adequate lymphadenectomy, showed tumor relapses for 20% of stage I patients after oncological curative surgery. We evaluated the prognostic value of molecular micrometastasis in the sentinel lymph node of patients with early-stage lung cancer. PATIENTS AND METHODS: The sentinel node was marked immediately after performing thoracotomy by peritumorally injecting 0...
March 5, 2018: American Journal of Clinical Oncology
Liang Li, Fengjuan Zhou, Fanzhong Lin, Cuihong Han
Thyroid-like low-grade nasopharyngeal papillary adenocarcinoma (TL-LGNPPA) is an extremely rare neoplasm. It morphologically resembles papillary thyroid carcinoma and is immunochemically positive for thyroid transcription factor 1. Herein, we reported a case of TL-LGNPPA in a female patient of 35 years old. She felt pharyngeal foreign body sensation of unknown cause and subsequently developed dyspnea after activities. Nasopharyngeal plain computerized tomography showed no abnormalities, but laryngoscopy showed a peanut-sized smooth neoplasm with a pedicel at the posterior edge of the nasal septum...
February 28, 2018: Applied Immunohistochemistry & Molecular Morphology: AIMM
Lei Yan, Shriram Jakate, Vijaya Reddy, Paolo Gattuso
BACKGROUND: Hepatocellular carcinoma (HCC) is the second leading cause of cancer deaths worldwide. The clinical and cytological features of metastatic HCC have not been well established. METHODS: To determine the clinical and cytological features of metastatic HCC, we retrospectively searched for all HCC metastasis diagnosed by fine needle aspiration or core biopsy. RESULTS: We found 12 bone metastases, 11 intra-abdominal, 4 lung, 3 soft tissue, and 2 lymph node metastases from 32 patients...
March 1, 2018: Diagnostic Cytopathology
Shalaka Khade, Asha Shenoy
Choroid plexus papilloma is a rare intracranial neoplasm. These lesions most commonly present in the fourth ventricle in adults and lateral ventricle in children. Herein, we report a case of a 57-year-old male with complaint of backache of few weeks duration. Magnetic resonance imaging revealed an intradural and extramedullary space occupying lesion at D8 level. Histology showed multiple free-floating papillae with a central fibrovascular core. The cells showed immunoreactivity for vimentin, glial fibrillary acidic protein, synaptophysin, S-100 protein, and cytokeratins (CK, CK7)...
January 2018: Asian Journal of Neurosurgery
Elisa Schmoeckel, Thomas Kirchner, Doris Mayr
The differentiation between a primary mucinous ovarian neoplasm and an extra-ovarian metastasis in the ovary is often challenging in the histopathologic practice. Among various ovarian metastases from the gastro-intestinal tract the low-grade appendiceal mucinous neoplasm (LAMN) is an important differential diagnosis to consider particularly in case of pseudomyxoma peritonei. A newly recognized marker in the routine diagnostic of a mucinous neoplasm in the ovary is SATB2 (Special AT-rich sequence-binding protein 2)...
December 14, 2017: Pathology, Research and Practice
Hugo Enrique Solis Lara, Natalia Villarreal Del Bosque, Miguel Antonio Sada Treviño, Masao Yamamoto Ramos, Rocío Del Carmen Argueta Ruiz
A 79-year-old man with prostate cancer underwent Ga prostate-specific membrane antigen (Ga-PSMA) dual-time-point PET/CT scan to evaluate tumor activity due to early satiety, unquantified weight loss, and elevation of prostate-specific antigen (PSA), demonstrating thickening of the gastric wall with intense tracer uptake. The immunohistochemistry of gastric biopsy showed CDX2 and CK20: negative; CK7, focal positive; PSA, positive, which confirmed metastatic disease. Metastatic disease was also found in bones, right lung, and retroperitoneal and pelvic lymphadenopathies...
February 27, 2018: Clinical Nuclear Medicine
Louis J Ligthelm, Belinda K Bunn, Erich J Raubenheimer, Willie F P van Heerden
BACKGROUND: Primary intestinal-type adenocarcinoma of the tongue is rare. This represents the first reported case of a primary mixed adenoneuroendocrine carcinoma (MANEC) of the tongue arising within a congenital enteric cyst. METHODS: A 52-year-old man presented with a midline tongue mass that was connected to the mucosal surface with an epithelial-lined sinus tract. Morphological examination and immunohistochemical profiling of the neoplasm were performed. RESULTS: Histopathological evaluation showed a primary MANEC arising within a preexisting congenital enteric cyst, comprising both adenocarcinoma and neuroendocrine components...
February 23, 2018: Head & Neck
Caitlin M Seykora, Scott R Dalton, Patrick J Brown J Brown
A 12-month-old boy presented with three months of asymptomatic hypopigmented flat-topped papules on the suprapubic skin and lower abdomen. Emollients and topical steroids offered no improvementand the patient was referred to the dermatology department. Shave biopsy revealed a papillated epidermis with scattered solitary mononuclearclear cells at all levels of the epidermis and an overlying basket weave orthokeratosis. The cells were epithelioid with increased amphophilic cytoplasm. Immunohistochemical staining was positive for CK7,CEA, and CAM5...
January 15, 2018: Dermatology Online Journal
Prashanta Kumar Panda, Prajna Paramita Naik, Prakash P Praharaj, Biswa Ranjan Meher, Piyush Kumar Gupta, Rama S Verma, Tapas K Maiti, Muthu K Shanmugam, Arunachalam Chinnathambi, Sulaiman Ali Alharbi, Gautam Sethi, Rajesh Agarwal, Sujit K Bhutia
Eradicating cancer stem cells (CSCs) in colorectal cancer (CRC) through differentiation therapy is a promising approach for cancer treatment. Our retrospective tumor-specimen analysis elucidated alteration in the expression of bone morphogenetic protein 2 (BMP-2) and β-catenin during the colon cancer progression, indicating that their possible intervention through "forced differentiation" in colon cancer remission. We reveal that Abrus agglutinin (AGG) induces the colon CSCs differentiation, enhancing sensitive to the anticancer therapeutics...
February 19, 2018: Molecular Carcinogenesis
M Shahid, A Siddiqi
Collision tumors represent a coexistence of two adjacent but histologically distinct tumors without histologic admixture in an organ. Primary well differentiated neuroendocrine tumor of ovary is rare and coexistent borderline mucinous tumor makes this association extremely rare. Although these tumors have been reported in other organs, its occurrence in ovary is rare. Collision tumor comprising primary neuroendocrine tumor of ovary and mucinous borderline tumor is an extremely rare occurrence. Here we report a case of this collision tumor in a postmenopausal female...
December 2017: Pathologica
Masahiro Yamasaki, Kunihiko Funaishi, Naomi Saito, Ayaka Sakano, Megumu Fujihara, Wakako Daido, Sayaka Ishiyama, Naoko Deguchi, Masaya Taniwaki, Nobuyuki Ohashi, Noboru Hattori
RATIONALE: Only a few cases of putative lung adenocarcinoma presenting as carcinoma of unknown primary site (CUP) with epidermal growth factor receptor (EGFR) mutation have been reported, and the efficacy of EGFR-tyrosine kinase inhibitors (TKIs) for these cases is unclear. PATIENT CONCERNS AND DIAGNOSES: A 67-year-old man complained of paresis of the right lower extremity, dysarthria, and memory disturbance. Computed tomography and magnetic resonance imaging showed multiple brain tumors with brain edema and swelling of the left supraclavicular, mediastinal, and upper abdominal lymph nodes...
February 2018: Medicine (Baltimore)
Brandon Umphress, Beatriz Sanchez, Ajit Paintal, Ritu Nayar, Kruti P Maniar
Cervical intraepithelial neoplasia (CIN) 2 is an equivocal diagnosis, with p16 immunohistochemical positivity currently recommended for diagnostic confirmation. Biomarkers characteristic of squamocolumnar junction cells were recently found to be positive in almost all CIN 2 and CIN 3. CIN 1 lesions which express squamocolumnar junction markers (in particular cytokeratin 7 [CK7]) are associated with a higher rate of subsequent high-grade squamous intraepithelial lesion, suggesting that CK7 may be a useful prognostic biomarker for CIN 1...
April 2018: American Journal of Surgical Pathology
Manabu Takamatsu, Yukiko Sato, Mariko Muto, Hiroko Nagano, Hironori Ninomiya, Rie Sakakibara, Satoko Baba, Seiji Sakata, Kengo Takeuchi, Sakae Okumura, Yuichi Ishikawa
Hyalinizing clear cell carcinoma of the bronchial glands is a very rare tumor. Since only five reports describing six tumors have been published to date, only a little is known about specific histologic findings and clinical features. Because of its rarity, hyalinizing clear cell carcinoma has not been described in the latest WHO classification of pulmonary tumors yet. Here we present three cases of bronchial hyalinizing clear cell carcinomas, confirmed by both fluorescence in situ hybridization (FISH) and RT-PCR, focusing on histologic and immunohistochemical characteristics in a comparison with three cases of salivary gland origin...
February 12, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
J X Zhou, X R He, G X Song, Z G Zou, L H Wang, R Hu, H X Li
Objective: To study the pathological features, immunophenotypes, differential diagnoses and prognostic parameters of collecting duct carcinoma of the kidney (CDC). Methods: Clinical imaging, histopathology, immunohistochemistry, and survival data of 10 patients at First Affiliated Hospital of Nanjing Medical University from January 2009 to August 2017 were retrospectively analyzed along with a review of literatures. Results: The clinical symptoms of CDC were not specific, and image examinations showed space-occupying mass lesions...
February 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
Masashi Miyaoka, Kazuhito Hatanaka, Masayuki Iwazaki, Naoya Nakamura
We report a rare case of pulmonary enteric adenocarcinoma (PEA) exhibiting a immunohistochemical feature of CK7/CK20 double-negativity by evaluating the transformation zone between PEA and conventional pulmonary adenocarcinoma (CPA). A 75-year-old man was found to have a mass, 40 mm in diameter, in the right lower lobe on chest computed tomography, and underwent right lower lobectomy. Histologically, the tumor was composed of a PEA and CPA component. The dominant PEA component had medium to large complex glands with tall columnar cells with eosinophilic cytoplasm and brush-border...
February 1, 2018: International Journal of Surgical Pathology
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