abstract：:SMARCB1 (INI1) deficient sinonasal carcinoma is a recently recognized entity with wide histomorphologic spectrum. We present a case of this carcinoma that contained, in addition to a "common" morphology, scattered foci of yolk sac tumor differentiation. The tumor occurred in paranasal sinuses in a 44-year-old woman. I...

journal_title：International journal of surgical pathology

authors： Zamecnik M,Rychnovsky J,Syrovatka J

更新日期：2018-05-01 00:00:00

abstract：:Warthin tumor is the second most common salivary gland neoplasm. It occurs more commonly in males than in females. Malignant transformation in Warthin tumor is a rare but well-recognized phenomenon; however, the development or presentation of lymphoma in a Warthin tumor is rare. An 80-year-old man presented with painl...

journal_title：International journal of surgical pathology

authors： Jawad H,McCarthy P,O'Leary G,Heffron CC

更新日期：2018-05-01 00:00:00

abstract：BACKGROUND:Benign neurogenic tumor involving the urinary bladder is a very rare and heterogeneous disease group. The clinical and radiological diagnosis may be difficult because of the disease's rarity and the histological similarities of each disease especially in needle biopsy specimens. However, accurate diagnosis i...

journal_title：International journal of surgical pathology

authors： Lee C,Kim B,Song B,Park JH,Moon KC

更新日期：2018-05-01 00:00:00

abstract：:Dedifferentiated liposarcoma is typically a nonlipogenic high-grade sarcoma that arises from well-differentiated liposarcoma. It most commonly presents as a large mass in the retroperitoneum. Significant involvement of the gastrointestinal tract by dedifferentiated liposarcoma is uncommon. We present a unique case of ...

journal_title：International journal of surgical pathology

authors： Hollowoa B,Lamps LW,Mizell JS,English GW 3rd,Bridge JA,Ram R,Gardner JM

更新日期：2018-04-01 00:00:00

abstract：:We report the case of a sclerosing perineurioma with conspicious collagen rosette formation in a 20-year-old male presenting with a firm, painless nodule on the palmar side of his right ring finger. The main differential diagnosis is a low-grade fibromyxoid sarcoma. The distinction between these entities is important ...

journal_title：International journal of surgical pathology

authors： Creytens D,Ferdinande L,Van Dorpe J

更新日期：2018-04-01 00:00:00

abstract：:Lymphoplasmacyte-rich meningioma (LPRM) is an extremely rare variant of meningioma, and a small percentage of LPRM may be associated with IgG4-related disease. To date, the coexistence of 2 rare meningioma variants consisting of LPRM and angiomatous meningioma within one neoplasm has not been reported in the literatur...

journal_title：International journal of surgical pathology

authors： Son HJ,Yu IK,Kim SM

更新日期：2018-02-01 00:00:00

abstract：:Synovial sarcoma is a high-grade sarcoma commonly affecting young adults. The sites of involvement include soft tissue near joints, lung, pleura, mediastinum, larynx, kidney, and buttocks. Histologic types include monophasic, biphasic, and undifferentiated. We report a unique case of synovial sarcoma with low-grade hi...

journal_title：International journal of surgical pathology

authors： Gupta N,Kenan S,Kahn LB

更新日期：2018-02-01 00:00:00

abstract：:Mucoepidermoid carcinoma (MEC) shows a wide morphologic spectrum, including epithelium with oncocytic or squamous metaplastic changes overlying a prominent cystic architecture, as well as tumor-associated lymphoid tissue. We illustrate a case of MEC of the parotid in a 17-year-old female, in which all these features o...

journal_title：International journal of surgical pathology

authors： Heatley N,Harrington KJ,Thway K

更新日期：2018-02-01 00:00:00

abstract：:The true incidence of light chain deposition disease (LCDD) restricted to the central nervous system (CNS) is unknown. To our knowledge only 7 cases of LCDD restricted to the brain have been previously reported. We herein describe an unusual example. A 44-year-old man presented with a history of ischemic retinopathy i...

journal_title：International journal of surgical pathology

authors： Mercado JJ,Markert JM,Meador W,Chapman P,Perry A,Hackney JR

更新日期：2017-12-01 00:00:00

abstract：:Lanthanum carbonate (LC) is a new type of phosphate adsorbent used to treat patients with hyperphosphatemia caused by chronic kidney diseases. Recent studies have pointed out that lanthanum deposition can be found in the cytoplasm of histiocytes in the gastroduodenal mucosa of these patients. On the other hand, it is ...

journal_title：International journal of surgical pathology

authors： Komatsu-Fujii T,Onuma H,Miyaoka Y,Ishikawa N,Araki A,Ishikawa N,Yamamoto T,Mishiro T,Adachi K,Kinoshita Y,Tauchi-Nishi P,Maruyama R

更新日期：2017-12-01 00:00:00

abstract：BACKGROUND:Study of minimum adenocarcinoma has been done almost exclusively on conventional acinar adenocarcinoma. Pseudohyperplastic adenocarcinoma can be confused with benign lesions because of its well-differentiated appearance and has not been studied when the biopsy shows few malignant glands (limited carcinoma). ...

journal_title：International journal of surgical pathology

authors： Arista-Nasr J,Martinez-Benitez B,Mijangos-Trejo A,Bornstein-Quevedo L,Albores-Saavedra J

更新日期：2017-10-01 00:00:00

abstract：BACKGROUND:Protein kinase C βII promotes melanogenesis and affects proliferation of melanocytic cells but is frequently absent or decreased in melanoma cells in vitro. OBJECTIVE:To investigate PKC-βII expression and spatial distribution within a lesion in various benign and malignant melanocytic proliferations. METHO...

journal_title：International journal of surgical pathology

authors： Krasagakis K,Tsentelierou E,Chlouverakis G,Stathopoulos EN

更新日期：2017-09-01 00:00:00

abstract：:Spermatocytic tumor, formerly known as spermatocytic seminoma, is an uncommon testicular neoplasm which is a distinct clinicopathologic entity from classic seminoma. These tumors are not associated with germ cell neoplasia in situ, other germ cell tumors, or isochromosome 12p. Although typically, these tumors have an ...

journal_title：International journal of surgical pathology

authors： Stueck AE,Grantmyre JE,Wood LA,Wang C,Merrimen J

更新日期：2017-09-01 00:00:00

abstract：:Epithelioid sarcoma is a rare malignant mesenchymal neoplasm (less than 1% of all sarcomas) with epithelioid morphology. Among the 2 subtypes, proximal represents only one-third of cases and commonly involves deep tissues of pelvic region, including the perineum, genital area, and groin, and occurs more frequently in ...

journal_title：International journal of surgical pathology

authors： Suárez-Zamora DA,Barrera-Herrera LE,Rodríguez-Urrego PA,Palau-Lázaro MA

更新日期：2017-08-01 00:00:00

abstract：BACKGROUND:The rate of incidental prostate adenocarcinoma (PCa) detection in radical cystoprostatectomy (RCP) varies widely, ranging from 15% to 54%. Such variability may be explained by institutional differences in prostate grossing protocols. Either partial or complete submission of the prostate gland in RCP may resu...

journal_title：International journal of surgical pathology

authors： Filter ER,Gabril MY,Gomez JA,Wang PZT,Chin JL,Izawa J,Moussa M

更新日期：2017-08-01 00:00:00

abstract：:Intralymphatic histiocytosis (ILH) is a peculiar pathological process characterized by the collections of benign histiocytes in dilated lymph vessels. Although the majority of ILH patients present clinically with various forms of cutaneous manifestation, rare extracutaneous incidences have been reported in the literat...

journal_title：International journal of surgical pathology

authors： Tran TAN,Tran Q,Carlson JA

更新日期：2017-06-01 00:00:00

abstract：:Primary leiomyosarcoma arising from the ovarian vein is extremely rare, with only 10 cases reported in the literature. We report on a case of leiomyosarcoma of the left ovarian vein in a 67-year-old woman who presented with abdominal discomfort. Pelvic ultrasound revealed a large, solid, irregular mass in close relati...

journal_title：International journal of surgical pathology

authors： López-Ruiz ME,Yébenes L,Berjón A,Hardisson D

更新日期：2017-06-01 00:00:00

abstract：:We report a case of metaplastic columnar epithelium in the mid-esophagus in a patient with history of caustic ingestion. A cardiac-type gastric phenotype, with early signs of intestinalization, was confirmed by immunohistochemistry studies (MUC5AC, MUC6, SOX2, and CDX2). Nonmetaplastic mucosa had histologic evidence o...

journal_title：International journal of surgical pathology

authors： Rolim I,Rodrigues RV,Bettencourt A,Barros R,Camilo V,Dias Pereira A,Almeida R,Chaves P

更新日期：2017-05-01 00:00:00

abstract：:Lynch syndrome is a hereditary disease with germline mutation in a DNA mismatch repair gene, most often presenting with colorectal and/or endometrial carcinomas; however, the spectrum of Lynch syndrome-associated tumors is expanding. In this article, we report a case of a primary peritoneal epithelioid mesothelioma th...

journal_title：International journal of surgical pathology

authors： Lu Y,Milchgrub S,Khatri G,Gopal P

更新日期：2017-05-01 00:00:00

abstract：:We report a case of polymorphous hemangioendothelioma, a rare vascular neoplasm, arising in the liver of a 51-year-old woman. Microscopically, this neoplasm is characterized by a polymorphous blend of solid, primitive vascular and angiomatous areas in variable proportions. Polymorphous hemangioendothelioma is consider...

journal_title：International journal of surgical pathology

authors： El Hussein S,Omarzai Y

更新日期：2017-05-01 00:00:00

abstract：:Male breast carcinomas (MBCs) are rare neoplasms that account for 0.1% of all male cancers. Still, there are 2000 new cases of MCB diagnosed annually in the United States. Because of its rarity, data regarding the etiology, risk factors, diagnosis, management, and prognosis of MBC are limited. MBC shares some similari...

journal_title：International journal of surgical pathology

authors： Javidiparsijani S,Rosen LE,Gattuso P

更新日期：2017-05-01 00:00:00

abstract：:Palisaded mammary-type myofibroblastoma is a rare variant of benign stromal spindle cell tumor whose histological features are well known. Nevertheless, no cytological features have been reported to date. In this article, we describe the cytological features of a case of palisaded mammary-type myofibroblastoma in whic...

journal_title：International journal of surgical pathology

authors： Fabbri VP,Damiani S,Baccarini P,Saguatti G,Cucchi MC,Foschini MP

更新日期：2017-04-01 00:00:00

abstract：:Peritoneal metastasis in colorectal carcinoma is associated with a dismal prognosis; however, features that correlate with patterns of metastatic spread are not well characterized. We analyzed the clinicopathologic and molecular features of 166 patients with colorectal carcinomas stratified by metastases to the perito...

journal_title：International journal of surgical pathology

authors： Kermanshahi TR,Magge D,Choudry H,Ramalingam L,Zhu B,Pingpank J,Ahrendt S,Holtzman M,Zeh H,Bartlett D,Zureikat A,Pai RK

更新日期：2017-04-01 00:00:00

abstract：:Circulating tumor cells are rare in peripheral blood smears. We report the case of a patient with circulating breast carcinoma cells resembling circulating myeloid blasts and provide a brief review of the literature. Peripheral blood smears and a bone marrow aspirate were examined morphologically and by flow cytometry...

journal_title：International journal of surgical pathology

authors： Rowan DJ,Logunova V,van Tuinen P,Olteanu H,Peterson JF

更新日期：2017-02-01 00:00:00

abstract：:A case of endobronchial pagetoid spread of a breast carcinoma metastatic to the lung is described. A 73-year-old woman underwent wedge lung resection after the cytological diagnosis of lung metastasis from ductal invasive breast carcinoma. The breast carcinoma had been surgically removed 6 years previously; at the tim...

journal_title：International journal of surgical pathology

authors： Monica MA,Baccarini P,Cucchi MC,Lacava N,Foschini MP

更新日期：2017-02-01 00:00:00

abstract：:Aims Epithelial mesenchymal transition (EMT) is a crucial process for acquisition of malignant phenotype, aggressiveness, and metastatic capacity in neoplasms. It is characterized by loss of epithelial markers and gain of mesenchymal markers. Studies on EMT and its potential association with the histological grading a...

journal_title：International journal of surgical pathology

authors： Angadi PV,Patil PV,Angadi V,Mane D,Shekar S,Hallikerimath S,Kale AD,Kardesai SG

更新日期：2016-12-01 00:00:00

abstract：:Intrasellar rhabdomyosarcoma is rare, and when arising in collusion with an unrelated entity, can present a diagnostic pitfall. We describe a case of a 56-year-old woman who presented with right eye ptosis and a pituitary mass, which was resected and diagnosed as atypical pituitary adenoma. Because of residual disease...

journal_title：International journal of surgical pathology

authors： Duncan VE,Nabors LB,Warren PP,Conry RM,Willey CD,Perry A,Riley KO,Hackney JR

更新日期：2016-12-01 00:00:00

abstract：:Transformation of an ameloblastic fibroma to an ameloblastic fibrosarcoma has been reported rarely in the literature. The present case report describes such evolution in a patient under long-term follow-up. The patient was first treated in 2008, and he developed the malignant counterpart of the disease 2 years later. ...

journal_title：International journal of surgical pathology

authors： Bertoni F,Del Corso G,Bacchini P,Marchetti C,Tarsitano A

更新日期：2016-10-01 00:00:00

abstract：:CD138 (syndecan-1) immunoexpression has been reported to be specific for the plasmacytoid variant of urothelial carcinomas (UCs). The aim of this study was to examine the utility of CD138 immunohistochemistry for diagnosing the plasmacytoid variant of UCs. The extent and intensity of CD138 immunostaining were evaluate...

journal_title：International journal of surgical pathology

authors： Goto K

更新日期：2016-10-01 00:00:00

abstract：:Calcifying epithelial odontogenic tumor, also known as Pindborg tumor, is a rare benign odontogenic tumor. This tumor predominantly involves the mandible, though the maxilla can also be involved in some cases. The involvement of maxillary sinuses, however, has been previously reported in only 8 case reports English li...

journal_title：International journal of surgical pathology

authors： Mitra S,Kaur G,Nada R,Mohindra S

更新日期：2016-09-01 00:00:00

abstract：:Anaplastic sarcoma of the kidney (ASK) is an extremely rare tumor, which usually presents as a large renal mass. Microscopically, the tumor is composed of pleomorphic mesenchymal spindle cells with marked atypia, associated with chondroid differentiation and focal round primitive mesenchymal cells. Herein, we present ...

journal_title：International journal of surgical pathology

authors： Arabi H,Al-Maghraby H,Yamani A,Yousef Y,Huwait H

更新日期：2016-09-01 00:00:00

abstract：:Pseudofungi are septate hyphae-like structures very similar morphologically to true fungal elements. Histologically their presence poses a diagnostic challenge as they mimic fungal infection. Accurate identification of pseudofungi is required to avoid unnecessary treatment, and this can be accomplished by careful morp...

journal_title：International journal of surgical pathology

authors： Lyapichev KA,Agarwal AN,Rosenberg AE,Chapman JR

更新日期：2016-09-01 00:00:00

abstract：:In this report, we present for the first time the coexistence of a conventional renal cell carcinoma (RCC) and an undefined Xp11 translocation renal neoplasm in distinct kidneys, which was difficult to definitively classify as either carcinoma or PEComa (perivascular epithelioid cell tumor). While one of the tumors sh...

journal_title：International journal of surgical pathology

authors： D'Antonio A,Addesso M,Nappi O,Zeppa P

更新日期：2016-05-01 00:00:00

abstract：:Spitz tumors are a group of melanocytic neoplasms with distinct morphological features that tend to affect young individuals. Distinguishing benign from malignant Spitz tumors can be challenging, but cytogenetic and molecular tests have contributed to improvements in diagnostic accuracy. Spitz tumors harbor diverse ge...

journal_title：International journal of surgical pathology

authors： Kiuru M,Jungbluth A,Kutzner H,Wiesner T,Busam KJ

更新日期：2016-05-01 00:00:00

abstract：:Mesonephric adenocarcinoma is a rare tumor type that is usually found in areas where the Wolffian duct was present during the fetal period. We report a case of mesonephric adenocarcinoma of the uterine corpus in a 66-year-old woman who presented with vaginal bleeding. Pelvic magnetic resonance imaging revealed a 2.7-c...

journal_title：International journal of surgical pathology

authors： Kim SS,Nam JH,Kim GE,Choi YD,Choi C,Park CS

更新日期：2016-04-01 00:00:00

abstract：:Vascular transformation of lymph node sinuses represents a rare benign entity mimicking malignant counterparts such as nodal Kaposi sarcoma. The presence of mildly atypical benign mesothelial cells within nodal sinuses raises the possibility of metastatic malignancy. Herein, a rare case of vascular transformation of l...

journal_title：International journal of surgical pathology

authors： Jabbour MN,Tawil AN,Boulos FI

更新日期：2016-04-01 00:00:00

abstract：:A 59-year-old female received a matched related donor stem cell transplant for chronic myelogenous leukemia. After being successfully treated with prednisone for chronic graft versus host disease that initially started 50 days posttransplant, she developed hepatic dysfunction during the steroid taper on day 531, as ev...

journal_title：International journal of surgical pathology

authors： Baniak NM,Kanthan R

更新日期：2016-04-01 00:00:00

abstract：:The rare reports of mucinous variant of follicular carcinoma of the thyroid gland have not provided enough evidence to support the recognition of these tumors as a distinct clinicopathologic entity or to understand their etiopathogenesis. We report the fourth case of mucinous variant of follicular carcinoma displaying...

journal_title：International journal of surgical pathology

authors： Squillaci S,Pitino A,Spairani C,Ferrari M,Carlon E,Cosimi MF

更新日期：2016-04-01 00:00:00

abstract：BACKGROUND:Phyllodes tumors (PTs) of the breast are rare biphasic neoplasms and are classified as benign, borderline, or malignant. Many biological markers have been studied to discriminate between different grades of PTs. IMP3 is a member of the insulin-like growth factor II mRNA binding protein (IMP) family and is ex...

journal_title：International journal of surgical pathology

authors： Bellezza G,Prosperi E,Del Sordo R,Colella R,Rulli A,Sidoni A

更新日期：2016-02-01 00:00:00

abstract：:Appendiceal pneumatosis is rare, reported either in the context of acute appendicitis or enterocolitis. Here, we report the case of an elderly adult in whom the acute appendicitis was associated with pneumatosis and occurred in the context of a malformed appendix with pathogenic organism remnants. A 72-year-old man pr...

journal_title：International journal of surgical pathology

authors： Handra-Luca A,Bisseret D,Dragoescu E

更新日期：2016-02-01 00:00:00