Osseous metaplasia of the cervix and endometrium: a case of secondary infertility

Endometrial and cervical osseous metaplasia with extramedullary haematopoiesis presenting as amenorrhea: Report of three cases

Endometrial and cervical osseous metaplasia (OM) is a rare phenomenon seen mostly in reproductive age group. Patients generally present with complaints of secondary infertility. Although few cases of endometrial OM have been described in literature, to the best of our knowledge, only six cases of OM in cervix have been reported so far. We report three cases of endometrial OM with extramedullary hematopoiesis, presented with complaints of amenorrhea and secondary infertility. In addition, one of the patients also had cervical OM.

Osseous Metaplasia of the Cervix: A Rare Transformation Can Mimic a Tumor-Literature Review

Background

The transformation of nonosseous soft tissue into bone is known as osseous metaplasia (OM). This condition most commonly affects the musculoskeletal and central nervous systems and it is a well-known phenomenon in different soft tissue organs. Rarely, OM can affect the uterus, which can extend into the cervix. OM affecting the cervix alone is a more rare condition that has multiple different clinical presentations. The presentation can be similar to that of a tumor in extremely rare cases.

Case Summary

A 23-year-old nulligravida was complaining of irregular vaginal bleeding for one-month duration. Speculum examination revealed a foul-smelling bloody purulent discharge, tender cervix, and a brownish growth located at the posterior cervical lip. A punch biopsy of the growth was performed. Histological examination of the tissue revealed multiple bone fragments with necrosis and an inflammatory exudate. Because of the unusual findings, a repeat biopsy was performed. The biopsy yielded the same findings, which confirmed the diagnosis of osseous metaplasia of the cervix.

Conclusion

Although osseous metaplasia is a known phenomenon in different soft tissues, it is extremely rare in the uterine cervix and can mimic malignancy. Therefore, clinicians should be aware of it.

Simultaneous osseous metaplasia nodules of the submucosa and mesosalpinx after first trimester abortion: a case report

OBJECTIVES

Here, we report a case of simultaneous osseous metaplasia nodules of the submucosa and mesosalpinx after a first trimester abortion.

CASE PRESENTATION

A 36-year-old woman presented to the Women's Hospital, School of Medicine, Zhejiang University with vaginal bleeding and infertility resulting from osseous metaplasia nodules of the submucosa and mesosalpinx after a first trimester abortion. Diagnostic and operative hysteroscopy and laparoscope procedures were performed. The osseous metaplasia nodules disappeared after hysteroscopy and laparoscope interventions; 2 weeks postoperatively, the patient underwent a transvaginal ultrasound examination and the abnormal ultrasound appearance had resolved.

CONCLUSIONS

Osseous metaplasia nodules in the submucosa and mesosalpinx can be a rare cause of vaginal bleeding and infertility. Autologous tissue, not persistent heterologous tissue, may be the true reason for metaplasia. Treatment is by ultrasound-guided curettage or by hysteroscopic and laparoscope removal.

A postconization hematometra revealed a rare case of endocervical bone metaplasia

BACKGROUND

Hematometra is an unusual occurrence in young women undergoing conization; moreover, osseous metaplasia of the uterine cervix is a very rare event, with 7 cases in the literature. A postconization hematometra due to endocervical ossification is a unique occurrence. The authors report such an event.

CASE

A young woman undergoing conization developed progressive hypoamenorrhea with pelvic pain. Pregnancy test was negative and a transvaginal ultrasound showed an image of suspected hematometra. Diagnostic hysteroscopy showed an endocervical obstruction due to a bone formation of the uterine cervix, which was removed with an office operative hysteroscopy. After surgery, the patient restored normal menstrual cycle. Histological examination revealed a cervical bone metaplasia.

CONCLUSIONS

In premenopausal women undergoing conization, the appearance of a progressive hypoamenorrhea with pelvic pain could suggest a cervical mechanical obstruction that could be an uncommon stenosis. Despite this case represents a very rare event, a postconization hematometra due to an endocervical ossification can be managed with an office operative hysteroscopy.