Primary Angiosarcoma of the Cervix: Case Report of a Rare Lesion
We report a case of a primary cervical angiosarcoma in a 43-yr-old woman who presented with heavy vaginal bleeding. Cervical biopsy and subsequent radical hysterectomy showed a malignant vascular tumor which was composed of spindled and epithelioid cells and formed abortive vascular channels. Immunohistochemically, the tumor cells were diffusely positive for CD31, CD34, ERG, and cyclin D1 and focally positive for D2-40. A reverse transcription polymerase chain reaction test for YWHAE-NUTM2 genetic fusion was negative excluding a YWHAE-translocated high-grade endometrial stromal sarcoma. The tumor formed a 5 cm mass withi...
Source: International Journal of Gynecological Pathology - December 13, 2019 Category: Pathology Tags: PATHOLOGY OF THE LOWER TRACT: CASE REPORT Source Type: research

Multiple Epidermolytic Acanthomas: Rare Vulval Lesions Which May be Mistaken for Viral Warts
We report 2 cases of multiple epidermolytic acanthomas localized to the vulva. Molecular tests (in situ hybridization and polymerase chain reaction) showed no evidence of human papillomavirus infection and p16 staining was negative. We stress the need for pathologists to consider epidermolytic acanthoma in the differential diagnosis of multiple vulval lesions resembling viral warts. (Source: International Journal of Gynecological Pathology)
Source: International Journal of Gynecological Pathology - December 13, 2019 Category: Pathology Tags: PATHOLOGY OF THE LOWER TRACT: ORIGINAL ARTICLE Source Type: research

Ovarian Combined Low-grade Serous and Mesonephric-like Adenocarcinoma: Further Evidence for A Mullerian Origin of Mesonephric-like Adenocarcinoma
We report an unusual case with bilateral ovarian serous borderline tumors and extraovarian low-grade serous carcinoma (invasive implants). In one ovary, there was a component of mesonephric-like adenocarcinoma. The immunophenotypes of the serous and the mesonephric-like components were distinct and as expected for the individual tumor types (serous component diffusely positive with WT1 and estrogen receptor and negative with GATA3, TTF1 and CD10; mesonephric-like component WT1 and estrogen receptor negative and GATA3, TTF1, and CD10 positive; both components diffusely positive with PAX8 and exhibiting “wild-type” p53 i...
Source: International Journal of Gynecological Pathology - December 13, 2019 Category: Pathology Tags: PATHOLOGY OF THE UPPER TRACT: CASE REPORTS Source Type: research

Malignant Lymphoma of the Ovary: A Diagnostic Pitfall of Intraoperative Consultation
We present a case of ovarian lymphoma, in which an ambiguous intraoperative pathologic report led to overtreatment (unnecessary surgery). A 73-yr-old woman with fatigue and low-grade fever was diagnosed as having a left ovarian tumor by imaging modalities. Exploratory laparotomy was carried out to confirm the diagnosis. The frozen tissue sections of the ovarian tumor showed condensed proliferation of atypical round cells accompanied with a few small lymphocytes. The pathologists could not determine whether this tumor was a lymphoma or another malignancy (eg, dysgerminoma). Hence, they reported it to gynecologists who opera...
Source: International Journal of Gynecological Pathology - December 13, 2019 Category: Pathology Tags: PATHOLOGY OF THE UPPER TRACT: CASE REPORTS Source Type: research

Wilms Tumor of the Ovary: Review of the Literature and Report of 2 Cases
Primary extrarenal Wilms tumor of the gynecologic tract is extremely rare with scattered case reports occurring in the ovary, uterine corpus and cervix. Only 9 cases of primary ovarian Wilms tumor have been reported to date. Here, we provide an extensive literature review and describe 2 patients with ovarian Wilms tumor: a 36-yr-old female (patient 1) and a 16-yr-old female (patient 2), both presenting with abdominal pain and suspected ovarian torsion. They were each found to have unilateral ovarian masses measuring>15 cm in size which were removed by unilateral salpingo-oophorectomy. Microscopically, the tumors exhibite...
Source: International Journal of Gynecological Pathology - December 13, 2019 Category: Pathology Tags: PATHOLOGY OF THE UPPER TRACT: CASE REPORTS Source Type: research

Cerebellar Metastasis From Ovarian Carcinoma Harboring PIK3CA-Activating Mutation: A “Clear” Explanation for Unexpected “Vertigo”
Brain metastasis is a rare and generally late manifestation of an advanced-stage, high-grade serous ovarian carcinoma. Nowadays, the improved control of intra-abdominal disease by surgery and platinum-based chemotherapy results in a longer survival, allowing distant metastasis to implant and grow in the brain parenchyma. Herein, we describe a unique case of a cerebellar metastasis from clear cell ovarian carcinoma that initially presented as a FIGO Stage IC cancer. Surprisingly, 6 mo after surgery, the patient was in good condition with complete disappearance of symptoms and no evidence of recurrence. This relatively goo...
Source: International Journal of Gynecological Pathology - December 13, 2019 Category: Pathology Tags: PATHOLOGY OF THE UPPER TRACT: CASE REPORTS Source Type: research

Smooth Muscle Tumors of the Visceral Adnexal and Uterine Ligaments and Adnexal Connective Tissue: A Clinicopathologic Study of 67 Cases
The endopelvic fascia is a biomechanical network of supportive tissue that suspends and secures the female reproductive organs to the pelvic sidewall. Several visceral adnexal and uterine ligaments are part of this framework, and we have observed that smooth muscle tumors (SMTs) arising from these structures morphologically resemble gynecologic smooth muscle neoplasms. To determine whether gynecologic smooth muscle tumor criteria for malignancy are valid in these tumors, we evaluated the morphologic features of 67 tumors from 67 patients and correlated our findings with patient outcome. Using current uterine SMT WHO defini...
Source: International Journal of Gynecological Pathology - December 13, 2019 Category: Pathology Tags: PATHOLOGY OF THE UPPER TRACT: ORIGINAL ARTICLES Source Type: research

Intratumoral Heterogeneity Accounts for Apparent Progression of Noninvasive Serous Tumors to Invasive Low-grade Serous Carcinoma: A Study of 30 Low-grade Serous Tumors of the Ovary in 18 Patients With Peritoneal Carcinomatosis
Noninvasive ovarian low-grade serous tumors [atypical proliferative serous tumor (APST)/serous borderline tumor] appear to progress to invasive low-grade serous carcinoma (LGSC) at a low but regular rate. The underlying biology of this phenomenon is unknown. We studied 18 patients with 30 ovarian tumors (12 bilateral), including APST, noninvasive LGSC and invasive LGSC, who also had low-grade serous carcinomatosis. Tumors were evaluated for microinvasion (usual eosinophilic cell type), microinvasive carcinoma (2 sections/cm changed the diagnosis in 1 additional case of APST with microinvasive carcinoma to overt carcinoma. ...
Source: International Journal of Gynecological Pathology - December 13, 2019 Category: Pathology Tags: PATHOLOGY OF THE UPPER TRACT: ORIGINAL ARTICLES Source Type: research

Endometrial Endometrioid Carcinoma With Ovarian Metastasis Showing Morula-like Features in a Patient With Cowden Syndrome: A Case Report
Cowden syndrome (CS) is a multiple hamartoma syndrome associated with the development of various tumors, including endometrial cancer. However, the histology of CS-associated endometrial cancer remains to be fully described. To our knowledge, this is the first report of a patient with CS having endometrial endometrioid carcinoma with ovarian metastasis demonstrating morula-like features. A 31-yr-old, nulliparous, Japanese woman presented with abnormal genital bleeding. Endometrial biopsy revealed endometrioid carcinoma with an extensive morular formation, partially resembling atypical polypoid adenomyoma (APAM). Moreover, ...
Source: International Journal of Gynecological Pathology - December 13, 2019 Category: Pathology Tags: PATHOLOGY OF THE CORPUS: CASE REPORT Source Type: research

Molecular Classification and Emerging Targeted Therapy in Endometrial Cancer
Recent advances in molecular studies, especially genome-wide analyses, have revealed the landscape of genomic alterations present in endometrial carcinomas, and have provided valuable insight into the pathogenesis of this disease. The current challenges are in developing a molecular-morphologic classification system to enhance traditional pathologic diagnosis and in determining the optimal approach to using this new information to guide clinical management. Molecular assays may be particularly beneficial in allowing the earlier detection of endometrial cancer or precursor lesions and in guiding personalized treatment appro...
Source: International Journal of Gynecological Pathology - December 13, 2019 Category: Pathology Tags: PATHOLOGY OF THE CORPUS: REVIEW ARTICLE Source Type: research

Performance Characteristics of Endometrial Sampling in Diagnosis of Endometrial Carcinoma
Outpatient endometrial biopsy can give false-negative results, with a 0.9% reported posttest probability for endometrial carcinoma (EC) after a negative result. Our objective was to determine if there has been any improvement in the performance characteristics of endometrial biopsy over the last 15 yr. All hysterectomy specimens with a diagnosis of EC or atypical hyperplasia (AH), reported between May 2011 and May 2015, were identified and cross-referenced for any negative endometrial sampling results during the 5 yr before hysterectomy. Negative endometrial samples were defined as either benign findings or insufficien...
Source: International Journal of Gynecological Pathology - December 13, 2019 Category: Pathology Tags: PATHOLOGY OF THE CORPUS: ORIGINAL ARTICLES Source Type: research

Epithelioid Trophoblastic Tumor: Expanding the Clinicopathologic Spectrum of a Rare Malignancy
Epithelioid trophoblastic tumor is a malignancy derived from the chorionic laeve-type intermediate trophoblast with sufficient rarity that the vast majority of literature on the topic exists in the form of case reports and small series. Classically, it is regarded as a well-circumscribed tumor with an expansile growth pattern that occurs in reproductive-aged women, usually after a normal pregnancy. However, we recently encountered a case of epithelioid trophoblastic tumor with aggressive spread throughout the abdomen and pelvis in a 68-yr-old female presenting 30 yr after her last delivery. Although to our knowledge this...
Source: International Journal of Gynecological Pathology - December 13, 2019 Category: Pathology Tags: PATHOLOGY OF THE CORPUS: ORIGINAL ARTICLES Source Type: research

Does Ki-67 Have a Role in the Diagnosis of Placental Molar Disease?
In this study, we examined the utility of p57 and Ki-67 IHC stains in the diagnosis of placental molar disease. The study cohort consisted of 60 cases of products of conception (20 CMs, 20 PMs, and 20 NMAs). All CM cases showed absent ( (Source: International Journal of Gynecological Pathology)
Source: International Journal of Gynecological Pathology - December 13, 2019 Category: Pathology Tags: PATHOLOGY OF THE CORPUS: ORIGINAL ARTICLES Source Type: research

Endometrial Stromal Neoplasm in the Placenta
No abstract available (Source: International Journal of Gynecological Pathology)
Source: International Journal of Gynecological Pathology - October 9, 2019 Category: Pathology Tags: Online Articles: Letters to the Editor Source Type: research

Endometrial Stromal Neoplasm in the Placenta?
No abstract available (Source: International Journal of Gynecological Pathology)
Source: International Journal of Gynecological Pathology - October 9, 2019 Category: Pathology Tags: Online Articles: Letters to the Editor Source Type: research