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Case Reports in Pathology

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https://www.readbyqxmd.com/read/27872782/angiosarcoma-arising-in-ovarian-mucinous-tumor-a-challenge-in-intraoperative-frozen-section-diagnosis
#1
Surapan Khunamornpong, Jongkolnee Settakorn, Kornkanok Sukpan, Tip Pongsuvareeyakul, Sumalee Siriaunkgul
Angiosarcoma of the ovary is rare but represents an aggressive type of malignant ovarian neoplasms. The purpose of this report is to describe the features of angiosarcoma arising in mucinous tumor that was misinterpreted as a benign vascular proliferation during the intraoperative consultation. A 45-year-old woman presented with an abdominal mass for 1 month. Exploratory laparotomy was performed. A 35 cm right ovarian mass submitted for intraoperative consultation was a multicystic mucinous tumor with an 8 cm area of hemorrhagic lesion between cystic locules...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27872781/two-invasive-thymomas-incidentally-found-during-coronary-artery-bypass-graft-surgery
#2
Navid Omidifar, Maral Mokhtari, Mansoureh Shokripour
Thymoma, the most common neoplasm of the anterior mediastinum, is a rare tumor of thymic epithelium that can be locally invasive. We reported 2 cases of invasive thymoma incidentally found during routine coronary artery bypass graft (CABG) surgery at Faghihee Hospital of Shiraz University of Medical Sciences of Iran in a period of about 6 months. The 2 patients were male and above 60 years old. They had no clinical symptoms and radiological evidence of mediastinal mass before detection of the tumor during operation...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27847666/lipid-histiocytosis-of-the-gallbladder-neck-lymph-node
#3
Adriana Handra-Luca, Mohamed Habib Ben Romdhane, Beate Katharina Straub
Lipid histiocytosis of the gallbladder neck lymph node is rarely reported nowadays. Two obese patients presented with gallbladder lithiasis detected on CT scan. The treatment consisted in coelioscopic cholecystectomy. Microscopy revealed subacute/chronic lithiasic cholecystitis and foci of vacuolated cells in the gallbladder neck lymph node. These cells were positive for CD68, CD31, S100 protein, and adipophilin and negative for cytokeratin and Alcian blue. In conclusion, we report lymph node lipid histiocytosis diagnosed microscopically after cholecystectomy...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27840759/primary-neuroendocrine-carcinoma-of-the-breast-histopathological-criteria-prognostic-factors-and-review-of-the-literature
#4
Lena Marinova, Doroteya Malinova, Snezhinka Vicheva
We present here a case of a 42-year-old woman diagnosed with primary neuroendocrine carcinoma of the breast (NECB). We discuss the importance of histological criteria for primary neuroendocrine mammary carcinoma, established by WHO in 2003 and 2012. After an overview of different cases of primary neuroendocrine carcinoma of the breast published in the literature, we present information about differential diagnosis, prognostic factors, and surgical and adjuvant treatment. Prognosis of NECB is not different from that of other invasive breast carcinomas and the most important prognostic factor is tumor grade (G)...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27833772/adenomatous-polyps-in-adolescent-girl-and-boy-a-report-of-two-cases
#5
Laleh Vahedi Larijani, Maryam Ghasemi, Hassan Karami
A polyp is defined as a mass of the mucosal surface that protrudes into the lumen of the gastrointestinal tract. Neoplastic epithelial polyps are classified histologically as either benign adenoma or malignant carcinoma. The colonic polyps that most commonly present in children occur sporadically and individually and are of the juvenile type; they are most frequently associated with painless rectal hemorrhage (which is the most common symptom). Adenomatous polyps are similar to other nontumoral polyps, and it is very rare for children to have symptoms other than rectal bleeding...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27818821/disseminated-cerebrospinal-embryonal-tumor-in-the-adult
#6
Alessandro Caporlingua, Daniele Armocida, Federico Caporlingua, Gennaro Lapadula, Grazia Maria Elefante, Manila Antonelli, Maurizio Salvati
Introduction. According to the 2016 World Health Organization classification of Tumors of the Central Nervous System, the term Primitive Neuroectodermal Tumor has been replaced by the term Embryonal Tumor (ET). We present a case of disseminated cerebrospinal ET presenting in an adult patient. Illustrative Case. A 49-year-old male presenting with low back pain, dysuria, and hypoesthesia of the lower extremities referred to our emergency department. Brain and whole spine contrast-enhanced MRI documented a diffusively disseminated heterogeneous neoplasm with intradural extra- and intramedullary involvement of the cervicothoracic tract and cauda equina...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27818820/an-unusual-case-of-paraganglioma-of-the-broad-ligament-presenting-as-cystic-mass
#7
Siddhi Gaurish Sinai Khandeparkar, Maithili Mandar Kulkarni, Vandana Gaopande, Avinash Joshi, Pushpalata Naphade
In clinical practice, broad ligament (BL) tumors are seldom encountered. Paraganglioma of the BL is exceedingly rare entity. Here we present an unusual case of broad ligament paraganglioma, presenting as a cystic mass, in a 50-year-old postmenopausal female. A high degree of suspicion along with detailed immunohistopathological work-up is needed for arriving at an accurate diagnosis.
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27807494/ovarian-carcinosarcoma-and-its-association-with-mature-cystic-teratoma-and-primary-tubal-carcinoma
#8
Sunida Rewsuwan, Nopporn Satabongkoch, Prapaporn Suprasert, Surapan Khunamornpong
Introduction. Carcinosarcoma is an uncommon form of ovarian cancers, classified as being part of the group of mixed epithelial and mesenchymal tumors. The occurrence of carcinosarcoma in association with a mature cystic teratoma and synchronous tubal carcinoma is very rare. Case Report. A 69-year-old woman presented with a pelvic mass. An abdominal computerized tomographic scan detected a 15 cm right pelvic mass which was suggestive of malignant transformation of a dermoid cyst. Intraoperative, bilateral ovarian masses (left 10 cm and right 12 cm) with diffuse peritoneal metastatic nodules were identified...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27803830/hepatoid-adenocarcinoma-of-the-urachus
#9
Daniel Fernando Gallego, Carlos Muñoz, Carlos Andrés Jimenez, Edwin Carrascal
Hepatoid adenocarcinoma of the urachus is a rare condition. We present the case of a 51-year-old female who developed abdominal pain and hematuria. Pelvic magnetic resonance imaging (MRI) reported an urachal mass with invasion to the bladder that was resected by partial cystectomy. On light microscopy the tumor resembled liver architecture, with polygonal atypical cells in nest formation and trabecular structures. Immunochemistry was positive for alfa-fetoprotein (AFP) and serum AFP was elevated. Hepatoid adenocarcinomas have been reported in multiple organs, being most commonly found in the stomach and the ovaries...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27795864/histiocytic-sarcoma-in-a-kidney-transplant-patient-a-case-report-and-review-of-the-literature
#10
Maressa Pollen, Siraj El Jamal, Jack Lewin, Varsha Manucha
Objective. Histiocytic sarcoma (HS) is an aggressive neoplasm with only limited number of reported series of cases and rare case reports of occurrence as a posttransplant neoplastic disorder. The etiology and pathogenesis of the disease is unknown and the optimal treatment is still under investigation. We describe an unusual case of HS in a patient with a remote history of kidney transplant. Method and Results. A 54-year-old male with a remote history of renal transplantation under maintenance immunosuppression presented with features of sepsis...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27774331/metastatic-papillary-thyroid-carcinoma-with-multifocal-synchronous-transformation-to-anaplastic-thyroid-carcinoma
#11
Mark Benedict, Jose Costa
Papillary thyroid carcinoma is a common malignancy to affect the thyroid and is typified by a nonaggressive nature and low rates of mortality. In contrast, anaplastic thyroid carcinoma is the most aggressive thyroid malignancy with a mortality rate of nearly 90% and survival typically of only six months after the diagnosis is made. The transformation of papillary thyroid carcinoma to anaplastic thyroid carcinoma is well documented in the literature but is uncommon and in most instances is reported as a case report or small series only...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27761273/unusual-case-of-a-proptosed-eye-isolated-right-maxillary-neurofibroma
#12
Darren Yap, Hannah Fox, Julia Addams-Williams
Neurofibroma is a slow growing benign tumour of the peripheral nerve sheath which is frequently associated with neurofibromatosis type 1 (Prakash et al., 2014). Isolated solitary occurrence of neurofibroma in the maxillary sinus is rare with only 29 reported cases in the literature. We present a rare case of a 70-year-old gentleman who was referred to ENT with a right maxillary sinus neurofibroma with extension into the right inferior orbit. He has significant proptosis, ptosis, and limitation in abduction of the right eye...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27747121/incidentally-detected-kaposi-sarcoma-of-adrenal-gland-with-anaplastic-features-in-an-hiv-negative-patient
#13
Zeliha Esin Celik, Murat Celik, Erdem Sen, Hakan Cebeci, Ozlem Ata, Cagdas Yavas
Kaposi sarcoma (KS), a vascular tumor caused by infection with human herpesvirus 8 (HHV8), is a systemic disease that can present with cutaneous lesions with or without visceral involvement. Very few cases of KS, most of which were associated with AIDS, have been reported in the adrenal gland. Anaplastic transformation of KS is a rare clinical presentation known as an aggressive disease with local recurrence and metastatic potential. We report here a 47-year-old HIV negative male presented with extra-adrenal symptoms and had an incidentally detected anaplastic adrenal KS exhibited aggressive clinical course...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27738541/metastatic-gastrointestinal-adenocarcinoma-with-osteoblastic-activity-a-case-report-of-esophageal-and-colonic-primaries
#14
Brett Matthew Lowenthal, Ahmed S Shabaik, Mark A Valasek
Adenocarcinoma with osteoblastic metastases is classically seen in prostate, breast, and lung primaries. Less common primary sites include thyroid, kidney, and stomach. We present two cases of primary gastrointestinal adenocarcinoma with metastatic osteoblastic activity from two previously unreported sites. The first case represents an esophageal adenocarcinoma arising in a background of intestinal metaplasia that metastasized with osteoblastic activity to the deltoid muscle. The second case demonstrates a Stage IV sigmoid colon adenocarcinoma with osteoblastic metastases to the liver and lymph nodes...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27672469/idiopathic-transverse-myelitis-mimicking-an-intramedullary-spinal-cord-tumor
#15
Andrew A Fanous, Nathan P Olszewski, Lindsay J Lipinski, Jingxin Qiu, Andrew J Fabiano
The differential diagnoses for spinal cord lesions include spinal tumors and inflammatory processes. The distinction between these pathologies can be difficult if solely based on imaging. We report for the first time to our knowledge a case of idiopathic transverse myelitis (ITM) mimicking a discrete cervical spinal lesion in a 66-year-old man who presented with gait instability and neck pain. The patient's symptoms failed to resolve after an initial course of steroid therapy. Surgical biopsy confirmed the diagnosis of ITM...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27672468/lobular-carcinoma-of-the-breast-metastatic-to-the-spleen-and-accessory-spleen-report-of-a-case
#16
Gabriel M Groisman
Despite the fact that accessory spleen (also known as supernumerary spleen, splenunculus, or splenule) can be found in 10-30% of patients undergoing autopsies, metastatic disease occurring in this organ has been barely reported. A case of lobular breast carcinoma metastatic to the spleen and accessory spleen found incidentally at therapeutic splenectomy for severe anemia and thrombocytopenia is described. On microscopic examination both organs revealed severe fibrocongestive changes and extramedullary hematopoiesis with no obvious carcinomatous involvement...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27672467/solitary-fibrous-tumor-of-the-sigmoid-colon-masquerading-as-an-adnexal-neoplasm
#17
Laura Bratton, Rabih Salloum, Wenqing Cao, Aaron R Huber
Solitary fibrous tumor is a rare, benign spindle cell neoplasm that was first described in the thoracic pleura. This tumor is now known to occur at many extrapleural sites. There are established criteria for the diagnosis of malignant solitary fibrous tumor including ≥4 mitotic figures per 10 high-power fields, increased cellularity, cytologic atypia, infiltrative margins, and/or necrosis. Although all solitary fibrous tumors have the potential to recur or metastasize, those with malignant histologic features tend to behave more aggressively...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27656307/cystic-and-papillary-neoplasm-at-the-hepatic-hilum-possibly-originating-in-the-peribiliary-glands
#18
Takashi Miyata, Katsuhiko Uesaka, Yasuni Nakanuma
Cystic neoplasms of the liver are divided into two types: mucinous cystic neoplasm and cystic intraductal papillary neoplasm of the bile duct. We herein report two cases of cystic and papillary neoplasm of the liver which differed from the abovementioned types. Case  1. A 70-year-old man. Radiologically, a cystic tumor measuring 20 mm in diameter was found at the hepatic hilum. Right hepatectomy was performed under a diagnosis of intrahepatic cholangiocarcinoma (iCCA) based on the imaging findings. Case  2...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27642532/postpartum-granulomatous-hypophysitis-a-case-study-review-of-the-literature-and-discussion-of-pathogenesis
#19
Upasana Joneja, D Craig Hooper, James J Evans, Mark T Curtis
Hypophysitis is a rare inflammatory condition of the pituitary gland that has three main histologic subtypes: lymphocytic hypophysitis (LH), granulomatous hypophysitis (GH), and xanthomatous hypophysitis (XH). Among these, LH is the most common and is strongly associated with the postpartum state, while XH is the least common. Many hypophysitis cases have been reported in the literature but only a few cases of postpartum GH have been discussed. Here, we describe a case of GH in a 24-year-old female presenting eleven days postpartum...
2016: Case Reports in Pathology
https://www.readbyqxmd.com/read/27610259/unicystic-ameloblastoma-with-mural-proliferation-managed-by-conservative-treatment
#20
Natália Galvão Garcia, Denise Tostes Oliveira, Moacyr Tadeu Vicente Rodrigues
Unicystic ameloblastoma is a distinguishable entity of ameloblastomas, characterized by slow growth and being relatively locally aggressive. Three histological types are recognized according to the degree of ameloblastomatous epithelial extension, namely, luminal, intraluminal, and mural types. This classification has a direct bearing on their biological behavior, treatment, and prognosis. However, there is difficulty in determining the most appropriate form of treatment for unicystic ameloblastoma. We present a case of unicystic ameloblastoma that occurred in the right posterior mandible of 19-year-old girl, which was enucleated and did not recur after 12-month follow-up...
2016: Case Reports in Pathology
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