International journal of gynecological pathology : official journal of the International Society of Gynecological Pathologists

Podoplanin is a 43-kd mucin-type transmembrane glycoprotein that is a candidate marker for the pathologic diagnosis of mesothelioma and lymphatic endothelial cells and lymphangiogenesis. The aim of this study was to investigate podoplanin e…

We report 2 cases of abnormal localized deposition of lipofuscin-laden macrophages in the lamina propria of the fallopian tube. In both cases there was evidence of ovarian and tubal endometriosis. The authors propose the term "melanosis tub…

Mesotheliomas of the abdominal cavity are rare tumors that primarily involve the peritoneum, mesentery, and omentum. The involvement of the viscera is usually secondary to bulky and extensive serosal disease. We describe 7 cases of mesothel…

Lymphangioleiomyomatosis (LAM) is part of a family of lesions collectively known as perivascular epithelioid cell neoplasms (PEComas). Though these lesions are comprised of histologically and immunohistochemically distinctive perivascular e…

We report for the first time a case of 2.5 cm polypoid cervical endometriosis with a superficial growth pattern in a 48-year-old patient with past tubal ligation. The lesion showed metaplastic changes (clear cell, eosinophilic, micropapilla…

We present a case of a 45-year-old woman with a long-standing history of persistent cervical dysplasia that resulted in a hysterectomy. Subsequent vaginal smears revealed high-grade vaginal intraepithelial neoplasia (VAIN III) on Pap smear …

Pure primary squamous cell carcinoma (SCCa) of the ovary not associated with pre-existing ovarian lesions including dermoid cysts, Brenner tumors, or endometriosis is extremely rare. The last 2 types of SCCa and pure primary SCCa have been …

Primary squamous cell carcinoma of the ovary is extremely rare. We studied a 58-year-old woman in whom a keratinizing squamous cell carcinoma of the ovary had arisen from a mucinous cystic tumor of endocervical (müllerian) type. The tumor w…

Depth of myometrial invasion by endometrioid adenocarcinoma (EMAC) is one of the most important predictive factors of disease recurrence. It is unclear whether myoinvasion arising in carcinomatous involvement of adenomyosis (AM) changes pro…

The occurrence of vascular involvement in adenomyosis has been noted earlier, but there has been little detailed study of this phenomenon. In this study, we examined a large series of uteri with adenomyosis (n=434), specifically looking for…

The histopathologic distinction of cervical adenocarcinoma in situ (AIS) and invasive adenocarcinoma (AC) from some benign endocervical lesions can be challenging. The ProEx C antibody reagent targets nuclear proteins (minichromosome mainte…

A 73-year-old postmenopausal Japanese woman presented with a complaint of slight fever and weight loss. An elevated level of CA125 in the blood favored a diagnosis of malignant uterine body tumor, but was not confirmed by endometrial cytolo…

A rare case of a clear cell adenocarcinoma and an adenosarcoma coexisting with a heterologous rhabdomyosarcoma in an endometriotic cyst of the ovary is reported. The tumor was composed of a cystic area and a solid area arising from the cyst…

This study investigates the expression of cyclooxgenase (COX)-2 and matrix metalloproteinase (MMP)-2 in patients with adenomyosis or endometrial polyps and their possible relation to microvascular density in these lesions. The subjects were…

Adenomyosis is a disease with a mysterious pathogenesis, defined by an abnormal displacement of the eutopic endometrium deeply and haphazardly inside the myometrium. Angiogenesis has been indicated to play an important role and our aim was …

To the Editor: I read with great interest the review article published in the journal by Zaino1 and commend his effort in compiling a succinct summary of grading and staging endometrioid-type adenocarcinoma highlighting several important co…

The origin of ovarian epidermoid cyst is unknown. Sixteen ovarian and 2 paraovarian squamous-lined cysts unassociated with teratomatous elements were studied. The ovarian cysts represented 1.5% of consecutive ovarian surface epithelial tumo…

Here we report a rare case of ovarian clear cell carcinoma (CC) arising in a mucinous cystadenoma. A 59-year-old woman presented with a dull pain at the left inguinal area. She was found to have a left ovarian cyst measuring 4.7 cm and unde…

We report 3 cases in which endometrial stromal cells exhibited marked nuclear atypia with a symplastic appearance. Two cases involved non-neoplastic endometrial stroma, one within an ovarian endometriotic cyst and the other within normal eu…

Adenomyomas are circumscribed tumorlike masses most often involving the uterus and consisting of endometrioid glands, stroma, and smooth muscle tissue. They are uncommon in extrauterine sites and in this situation it may be unclear whether …

Ovarian mucinous borderline tumor of müllerian type (MMBT) and mixed epithelial borderline tumor of müllerian type (MEBT) are uncommon subtypes of ovarian surface epithelial tumors. Both are often associated with endometriosis, but their hi…

A case of müllerian adenosarcoma arising in ovarian endometriosis is reported in which the whole of the mesenchymal component exhibited striking deciduoid morphology, a phenomenon that has not been previously described. The patient was not …

The accepted view of ovarian carcinogenesis is that carcinoma begins in the ovary, undergoes progressive "dedifferentiation" from a well to a poorly differentiated tumor, and then spreads to the pelvic and abdominal cavities before metastas…

The Mirena intrauterine system (IUS) has improved the options available to women with menorrhagia. However, in some women, IUS treatment fails to reduce menstrual flow, and surgical treatment, including hysterectomy, is necessary. We have r…

Ovarian primary carcinoid tumors of pure histological type can pose a significant diagnostic challenge in its separation from metastatic carcinoids from the gastrointestinal tract. Yet, their clinical management and prognosis are drasticall…