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
International Journal of Surgical Pathology - Tập 29 Số 6 - Trang 653-657 - 2021
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
kidney tumor w...
Endometriosis of Extra-Abdominal Soft Tissues
International Journal of Surgical Pathology - Tập 24 Số 6 - Trang 497-503 - 2016
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
center. All ca...
Desmoplastic Small Round Cell Tumors With Atypical Presentations: A Report of 34 Cases
International Journal of Surgical Pathology - Tập 27 Số 3 - Trang 236-243 - 2019
Objectives. 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. Sixteen tumors a...
Malignant Monotypic Epithelioid Angiomyolipoma of the Retroperitoneum
International Journal of Surgical Pathology - Tập 11 Số 3 - Trang 223-228 - 2003
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 exclusively ...
Malakoplakia of the Prostate on Needle Core Biopsy: A Case Report and Review of the Literature
International Journal of Surgical Pathology - Tập 15 Số 1 - Trang 86-89 - 2007
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 mistaken
for ma...
Granulomatous Interstitial Nephritis: A Clinicopathologic Study of 46 Cases from a Single Institution
International Journal of Surgical Pathology - Tập 14 Số 1 - Trang 57-63 - 2006
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 classified
as dr...
A Primary Pure Yolk Sac Tumor of the Lung Exhibiting CDX-2 Immunoreactivity and Increased Serum Levels of Alkaline Phosphatase Intestinal Isoenzyme
International Journal of Surgical Pathology - Tập 14 Số 3 - Trang 247-251 - 2006
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
increased seru...
CDX2 Expression in Yolk Sac Component of Testicular Germ Cell Tumors
International Journal of Surgical Pathology - Tập 17 Số 5 - Trang 373-377 - 2009
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 and 27 mix...
Spinal Adrenal Cortical Adenoma with Oncocytic Features: Report of the First Intramedullary Case and Review of the Literature
International Journal of Surgical Pathology - Tập 12 Số 3 - Trang 259-264 - 2004
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 myelogram s...
Adrenocortical Oncocytic Tumors: Report of 10 Cases and Review of the Literature
International Journal of Surgical Pathology - Tập 12 Số 3 - Trang 231-243 - 2004
Ten additional adrenocortical oncocytic tumors are presented: 2 benign
oncocytomas, 4 borderline oncocytomas of uncertain malignant potential, and 4
oncocytic carcinomas. Histologically all tumors were entirely or predominantly
composed of oncocytes. Immunohistochemically all tumors were immunoreactive for
mitochondrial antigen mES-13. Electron microscopy was performed in 8 cases and
was confirmat...
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