International journal of surgical pathology

Endosalpingiosis (ES) is a benign, nonneoplastic condition of the Müllerian system characterized by the ectopic implantation of fallopian tube-like ciliated columnar epithelium. Unlike endometriosis, ES lacks endometrial stroma and therefor…

Extrauterine presentation of Mullerian adenosarcoma is rare and thought to either arise from endometriosis or from spread from a primary uterine or ovarian origin. When accompanied by sarcomatous overgrowth, particularly when the epithelial…

BackgroundMesonephric-like adenocarcinoma (MLA) is a rare type of Müllerian carcinoma that poses significant diagnostic challenges, especially at extrauterine sites. Its morphologic and immunophenotypic overlap with other carcinomas can lea…

IntroductionTransgender men are assigned female sex at birth, but identify with a masculine gender identity, prompting them to undergo gender-affirming surgery, usually following androgen therapy, which induces changes in histology of hormo…

Predominantly, case reports and small case series of endometriosis involving the bladder have been published. This study aimed to provide a contemporary clinicopathologic analysis of a large cohort of patients at a major academic center in …

Mullerianosis is a term used to describe a pathologic entity comprised of at least 2 types of Mullerian-type epithelia (tubal, endocervical, or endometrial) at non-gynecologic sites. This is an uncommon occurrence in the urinary tract. To t…

Mesonephric-like adenocarcinoma (MLA) is a rare tumor that occurs in the uterine corpus and ovary. It shares the morphological and immunohistochemical features of cervical mesonephric adenocarcinoma. Recent reports have suggested that a maj…

Routine histopathological examination of hernia sac in adults remains a controversial topic. We undertook a retrospective study to assess possible clinical benefits of pathological examination of hernia sac specimens. Our pathology database…

Mesonephric-like adenocarcinoma is a rare neoplasm of the uterine corpus and ovary. Unlike prototypical mesonephric adenocarcinoma of the uterine cervix, which is considered of Wolffian origin, recent evidence suggests that mesonephric-like…

Ovarian mesonephric-like adenocarcinoma (MLA) is a rare cancer subtype. We describe a patient with ovarian MLA wherein liver metastases developed 1 month after surgery. A phenotypic analysis of the tumor was performed to identify molecular …

The current study highlighted the ARID1A and SALL4 expression and described histopathologic and immunohistochemical features of ovarian seromucinous tumors (SMTs) including borderline tumors (SMBTs) and seromucinous carcinomas (SMC; namely …

A female patient with a history of ductal carcinoma in situ in the left breast, status-post bilateral mastectomy with deep inferior epigastric perforator artery flap reconstructive surgery, presented with a right breast asymmetry concerning…

Appendiceal endometriosis is a rare entity and, when accompanied by intestinal metaplasia, represents a challenging differential diagnosis with low-grade appendiceal mucinous neoplasm (LAMN). We present the case of a 47 years-old woman, wit…

Endometrial stromal sarcoma (ESS) is a rare uterine neoplasm infrequently arising in extra-genital sites. Herein, we report an extremely rare case of primary extra-genital ESS of transverse mesocolon occurring in a 51-year-old female presen…

Uterus-like mass is a rare form of endometriosis, which shows striking structural similarity to the normal uterus. Formation of a mass lesion raises clinical concern for malignancy, and pathologic examination is necessary for accurate diagn…

Fallopian tube prolapse is a rare complication post surgery, nearly always presenting in the vaginal wall after hysterectomy. Occurrence is relatively rare, with less than 100 cases being described in literature. We report the case of a 36 …

This was a 57-year-old woman who presented with mild discomfort in the right groin. Physical examination revealed a mass in the right groin, and by ultrasound, the mass was hypoechoic and solid with some internal vascularity. The clinical d…

Malignant transformation of endometriosis is rare, and most cases concern the ovaries, while extraovarian cases are mostly found in the rectovaginal septum. Incisional adenocarcinoma is extremely rare, with only few cases reported in the li…

Benign endometrial calcifications with or without bone fragments are uncommon clinicopathologic findings. They can be detected during pelvic ultrasonography or as incidental pathologic findings. They have been found to be associated with in…

Objective. Leiomyomatosis peritonealis disseminata (LPD) is a rare benign disease that is characterized by numerous small muscle nodules disseminated in the abdominal and pelvic cavity. This study analyzed the clinical features, pathologic …

Objectives. We recently suggested that increased intramural pressure may often explain pain and/or bleeding. Hysterectomies for bleeding tend to have outward bulges and endometrial vascular ectasia, while hysterectomies for pain tend to hav…

Multicystic mesotheliomas of peritoneal origin (also termed benign multicystic mesotheliomas) are uncommon and are exceptionally rare in the omentum. Lack of familiarity of this entity could lead to overinterpretation as a malignancy or pre…