Hamartomatous endocervical polyp with heterologous mesenchymal tissue

First Case Report of a Uterine Angiolipoleiomyoma With KRAS and KIT Mutations

Angiolipoleiomyoma is a very rare lesion of the uterus. To the best of our knowledge, only 20 cases have been described in the literature. It is an insufficiently defined entity, which is not included in the WHO classification. This lesion may be therefore underdiagnosed and underestimated. We describe here a case of a 58-yr-old woman who underwent routine gynecological examination. Ultrasonography revealed a heterogeneous myometrial mass, while magnetic resonance imaging showed a voluminous corporeal and fundic myometrial mass protruding into the uterine cavity. A total hysterectomy was performed. The macroscopic examination revealed an intramural solitary round mass with a heterogeneous cut-surface. Microscopically, the lesion consisted of an admixture of smooth muscle, adipose tissue, and blood vessels. Desmin was positive, while HMB45 was negative in the tumor. Molecular tests were performed and revealed, for the first time to our knowledge, a case of an angiolipoleiomyoma harboring KRAS and KIT mutations.

Choristomatous Endocervical Polyp with Heterologous Adipose Tissue

Endocervical polyps are a common occurrence in the postmenopausal age group and many reports have described the presence of heterologous elements in the stroma of such polyps. The presence of mature adipose tissue in the stroma has been hypothesized to be arising from the perivascular fat or metaplastic transformation of the smooth muscle cells posttrauma. A 75-year-old female presented with spotting per vagina. Colposcopic examination revealed an endocervical polyp which was excised. Microscopic examination showed an ulcerated epithelium with metaplastic changes along with sheets of mature adipose tissue with focal S100 positivity conferring a diagnosis of choristomatous endocervical polyp with heterologous adipose tissue. The primary clinical concern of a malignant cause in this age group is alleviated by the diagnosis of this rare benign entity. Only three such cases have been reported in the English literature so far, and the present case accounts for the fourth such case.

Giant hamartomatous polyp of the uterine cervix with heterologous mesenchymal tissue in a child: a case report

Background

Polyps of the uterine cervix are one of the most common benign hyperplastic lesions occurring in the female genital tract that usually arise from the endocervical canal and are believed to be the result of reactive changes due to long-standing chronic inflammation, multiparty, and foreign bodies. Cervical polyps are usually small in size (less than 4 cm) that are commonly found in adult women; however, a few cases of giant polyps and the rare occurrence of these lesions in children have also been reported. Heterotopias and malignant transformation in cervical polyps are considered to be very rare.

Case presentation

We present the case of a 10-year-old Afghan girl with a giant pedunculated mass protruding out of the uterine cervix that was accompanied by abdominal pain and mass sensation. The mass was completely excised by surgical intervention and the specimen was submitted for histopathological evaluation. Upon gross and microscopic examination, the characteristic findings of a hamartomatous polyp with heterologous mesenchymal tissue in the form of mature cartilage were seen. To the best of our knowledge, this is the first case of a giant (17.5 cm) hamartomatous polyp of the uterine cervix in this age group.

Conclusion

Giant hamartomatous cervical polyps rarely occur in patients below 10 years of age. The majority of these lesions are benign; however, a few cases with malignant transformation are also reported, which demands elaborate investigations into the etiopathogenesis and nature of the lesions.

Benign Endocervical Polyp with Heterologous Elements in a 42-year-old Female: Report of a Case

A 42-year-old female with unremarkable medical history presented for a routine cervical screening upon which an endocervical polyp was identified and submitted entirely for histopathologic evaluation. Microscopic examination showed multiple well-circumscribed nodular fragments of polyp with superficial erosion and focal acute inflammation. Benign endocervical glands were seen within a fibrotic stroma with a prominent smooth muscle component. Intermixed mature adipose tissue and large thick-walled vessels were also identified. Stromal and epithelial atypia were absent; similarly, stromal cellularity, mitoses, and condensation were not identified. Additional deeper levels did not reveal other heterologous elements. The diagnosis of a benign choristomatous endocervical polyp was rendered. As anticipated, the patient recovered completely. A review of the English literature demonstrates rare, namely two other reports of hamartomatous tissue in an endocervical polyp. To the best of our knowledge, we report the third such case.

Polyp of the uterine cervix with heterologous fatty tissue

This report documents an uncommon case of choristomatous cervical polyp-containing fat tissue. The patient was a 24-year-old female who presented with irregular intermenstrual bleeding. On examination, a polypoid lesion with smooth outlines, measuring 1 cm in diameter was removed. Microscopic examination demonstrated abnormal fibrous stroma, devoid of endocervical glands, containing mature adipose tissue, and thick-walled blood vessels. The lesion was covered by a typical mature squamous cell outer lining. To the best of our knowledge, this is only the second report of an adipose tissue arising from the cervical wall. Further clinicopathologic considerations are needed to elucidate the origin of the fatty component in cervical polyps.

Adenolipoleiomyoma Polyp of the Uterus: A Case Report and Review of the Literature

Adenolipoleiomyoma is a very rare lesion of the uterus. Only four cases were reported. We describe one case of adenolipoleiomyoma presenting as a polyp in a postmenopausal woman with menorrhagia. Adenolipoleiomyoma is a very rare lesion and the histogenesis remains unclear. We discuss the origin and the differential diagnosis of this lesion.

Endocervical Polyp With Florid "Epidermal Metaplasia": Report of a Previously Undescribed Phenomenon

Endocervical polyps are common benign lesions which rarely result in diagnostic problems, although a variety of alterations occasionally complicate histologic interpretation. We report an unusual, and not previously described, finding of florid "epidermal" metaplasia with keratinization and extensive formation of skin appendages structures (sebaceous and sweat glands and hair follicles) within an endocervical polyp. The features closely resembled an epidermal inclusion cyst. We speculate on the possible pathogenesis of this rare phenomenon and review unusual findings in endocervical polyps.

Lipoadenofibroma of the endometrium: a rare variant of benign mullerian mixed tumor

OBJECTIVE

Adenofibroma is a form of mixed mesodermal tumor in which epithelial and stromal components are benign, and usually arises in the endometrium of postmenopausal women. We report a case of lipoadenofibroma of the endometrium that appeared as an intracavitary mass, which is very unusual because endometrioid adenofibroma rarely contains mature adipose tissue, only the second such case described in detail.

CASE

An endometrial polypoid mass measuring 1,5 cm with maximum diameter was found incidentally during total abdominal hysterectomy for keratinizing large cell carcinoma of the cervix in a 60-year-old woman. The endometrial polypoid mass was found to be a lipoadenofibroma composed predominantly of collagenated fibrous stroma populated by cystically dilated and occasionally crowded glands lined with proliferative endometrium, intermingled with abundant mature adipose tissue.

CONCLUSION

We suggest that uterine adenofibromas with lipomatous areas belong to the family of mixed tumor of Mullerian origin. We discuss the pathogenesis of this entity and review the previously documented similar cases.