International Journal of Surgical Pathology
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Intravascular Large B-Cell Lymphoma and Renal Clear Cell Carcinoma as Collision Tumor: A Case Report and Review of the Literature Intravascular large B-cell lymphoma (IVLBCL) is a rare type of extranodal large B-cell lymphoma characterized by the selective growth of lymphoma cells within the lumina of vessels. The patient usually presents with nonspecific symptoms and a remarkable deterioration in performance status. The occurrence of synchronous IVLBCL and renal cell carcinoma (RCC) is extremely rare. A right kidne... ...
International Journal of Surgical Pathology - Tập 29 Số 6 - Trang 653-657 - 2021
Endometriosis of Extra-Abdominal Soft Tissues While endometriosis, defined as the presence of endometrial tissue in extrauterine sites, is most frequently encountered within the peritoneal cavity, a small but significant proportion of cases occur at extra-abdominal soft tissue sites, particularly in relation to previous abdominal surgery. We reviewed the cases of endometriosis of soft tissue sites seen at a tertiary soft tissue cente... ...
International Journal of Surgical Pathology - Tập 24 Số 6 - Trang 497-503 - 2016
Desmoplastic Small Round Cell Tumors With Atypical Presentations: A Report of 34 CasesObjectives. Desmoplastic small round cell tumor (DSRCT) is an aggressive round cell sarcoma that arises in the abdominal cavity/pelvis of young males. We sought to expand its clinicopathologic spectrum. Methods. Cases of DSRCT presenting in patients >30 years of age or tumors arising outside of the abdominal cavity/pelvis were retrieved. Results. Thirty-four cases were identified. Sixte... ...
International Journal of Surgical Pathology - Tập 27 Số 3 - Trang 236-243 - 2019
Hyalinized Uterine Mesenchymal Neoplasms with HMB-45-Positive Epithelioid Cells: Epithelioid Leiomyomas or Angiomyolipomas? Report of Four Cases We present 4 cases of uterine mesenchymal tumors that were located mostly in the myometrium in middle-aged women. Grossly the tumors vaguely resembled conventional leiomyomas. All tumors were extremely hyalinized. The tumor cells were remarkable because of their large size and epithelioid shape. They occurred singly or more often in variously sized clusters with pericellular clear spaces ... ...
International Journal of Surgical Pathology - Tập 8 Số 4 - Trang 323-328 - 2000
Malignant Monotypic Epithelioid Angiomyolipoma of the Retroperitoneum Monotypic epithelioid angiomyolipoma (EAML) is an uncommon variant of angiomyolipoma, occurring primarily in the kidney and characterized by a predominance of HMB-45-positive epithelioid cells. EAML is generally considered a benign neoplasm, though rare cases exhibiting malignant behavior have been reported. We describe a patient with a primary retroperitoneal monotypic EAML, composed exc... ...
International Journal of Surgical Pathology - Tập 11 Số 3 - Trang 223-228 - 2003
Malakoplakia of the Prostate on Needle Core Biopsy: A Case Report and Review of the Literature Malakoplakia is a rare inflammatory disorder that results from an infectious process and that may be associated with immunosuppression. It most often occurs in the genitourinary tract; however, isolated cases have been reported in many other organs, including colon, stomach, lung, liver, bone, uterus, and skin. In the bladder, which is the most common site of involvement, it may be mistak... ...
International Journal of Surgical Pathology - Tập 15 Số 1 - Trang 86-89 - 2007
Granulomatous Interstitial Nephritis: A Clinicopathologic Study of 46 Cases from a Single Institution Acute interstitial nephritis is commonly seen in kidney biopsies of patients with acute renal failure; however, granulomatous interstitial nephritis (GIN) is rare. We identified 46 cases of GIN in a 17-year period in this institution and we investigated their most probable etiologies. Complete clinical information was available in 38 patients. Seventeen of 38 patients (44.7%) were classif... ...
International Journal of Surgical Pathology - Tập 14 Số 1 - Trang 57-63 - 2006
A Primary Pure Yolk Sac Tumor of the Lung Exhibiting CDX-2 Immunoreactivity and Increased Serum Levels of Alkaline Phosphatase Intestinal Isoenzyme Malignant extragonadal germ cell tumors primary to the lung are quite uncommon lesions, but pure yolk sac tumor is even more exceptional. This is believed to be the first reported case of yolk sac tumor of the lung in which an intense and diffuse immunoreactivity for CDX2, a marker of intestinal differentiation reportedly expressed also in gonadal yolk sac tumor, was associated with incre... ...
International Journal of Surgical Pathology - Tập 14 Số 3 - Trang 247-251 - 2006
CDX2 Expression in Yolk Sac Component of Testicular Germ Cell Tumors CDX2 has been detected in the majority of colorectal adenocarcinoma cases and may be useful in determining the sites of origin of tumors. In this study, the authors evaluated CDX2 expression in germ cell tumors (GCTs) by immunohistochemistry. Forty cases of testicular GCTs and 8 cases of metastatic GCTs were retrieved for study. In the 40 cases of testicular GCTs, 13 were pure seminomas a... ...
International Journal of Surgical Pathology - Tập 17 Số 5 - Trang 373-377 - 2009
Spinal Adrenal Cortical Adenoma with Oncocytic Features: Report of the First Intramedullary Case and Review of the Literature Ectopic adrenal cortical neoplasms are extremely rare, and only a few have involved the CNS. We report the first case of an intramedullary oncocytic adrenal cortical neoplasm of the spinal cord with immunohistochemical (IMHC) confirmation. A 27-year-old man presented with progressive lower extremity weakness, spastic paraparesis, decreased reflexes, and hypoesthesia below T10. A spinal my... ...
International Journal of Surgical Pathology - Tập 12 Số 3 - Trang 259-264 - 2004
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