Pulmonary benign metastasizing leiomyoma in patients aged 45 years and younger: clinical features and novelty in treatment

Abstract Background Pulmonary benign metastasizing leiomyoma (PBML) is the most common extrauterine spread of uterine leiomyoma, and its biological behavior is traditionally thought to be hormone dependent. Studies on older PBML patients have been previously reported, but limited literature has been...

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Main Authors: Hao Su, Rong Fan, Hua Yang, Yan You, Lan Zhu, Fengzhi Feng
Format: Article
Language:English
Published: BMC 2023-05-01
Series:BMC Pulmonary Medicine
Subjects:
Online Access:https://doi.org/10.1186/s12890-023-02406-7
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author Hao Su
Rong Fan
Hua Yang
Yan You
Lan Zhu
Fengzhi Feng
author_facet Hao Su
Rong Fan
Hua Yang
Yan You
Lan Zhu
Fengzhi Feng
author_sort Hao Su
collection DOAJ
description Abstract Background Pulmonary benign metastasizing leiomyoma (PBML) is the most common extrauterine spread of uterine leiomyoma, and its biological behavior is traditionally thought to be hormone dependent. Studies on older PBML patients have been previously reported, but limited literature has been published regarding the clinical features and treatment of PBML in young women. Methods A total of 65 cases of PBML in women aged 45 years and younger were reviewed, including 56 cases selected from PubMed and 9 cases from our hospital. The clinical characteristics and management of these patients were analyzed. Results The median age of all the patients at diagnosis was 39.0 years. PBML most commonly presented as bilateral solid lesions (60.9%), with other rare imaging manifestations. The median interval time from a pertinent gynecologic procedure to diagnosis was 6.0 years. A total of 16.7% of patients received careful observation, and all achieved stable status in a median follow-up time of 18.0 months. A total of 71.4% of patients were administered anti-estrogen therapies, including surgical castration (33.3%), gonadotropin-releasing hormone analog (23.8%) and anti-estrogen drugs (14.3%). Eight of 42 patients underwent surgical resection of metastatic lesions. Patients who underwent curative surgery for the removal of pulmonary lesions combined with adjuvant anti-estrogen therapies had favorable outcomes compared with those who only underwent surgical resection. The disease control rates of surgical castration, gonadotropin-releasing hormone analog, and anti-estrogen drugs were 85.7%, 90.0%, and 50.0%, respectively. For two patients, sirolimus (rapamycin) achieved successful relief of symptoms and control of pulmonary lesions without lowering hormone levels and causing estrogen deficiency symptoms. Conclusions In the absence of standard treatment guidelines for PBML, maintaining a low-estrogen environment using different kinds of antiestrogen therapies has been the mainstream strategy and has satisfying curative effects. A wait-and-see strategy might be an option, but therapeutic approaches must be contemplated when complications or symptoms progress. For PBML in young women, the negative effect on ovarian function of anti-estrogen treatment, especially surgical castration, should be considered. Sirolimus might be a new treatment option for young PBML patients, especially for those who want to preserve ovarian function.
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spelling doaj.art-4585a8e35add45338e5c8ba16dac2d202023-05-21T11:07:14ZengBMCBMC Pulmonary Medicine1471-24662023-05-012311910.1186/s12890-023-02406-7Pulmonary benign metastasizing leiomyoma in patients aged 45 years and younger: clinical features and novelty in treatmentHao Su0Rong Fan1Hua Yang2Yan You3Lan Zhu4Fengzhi Feng5Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, National Clinical Research Center for Obstetric & Gynecologic Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeDepartment of Obstetrics and Gynecology, Peking Union Medical College Hospital, National Clinical Research Center for Obstetric & Gynecologic Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeDepartment of Obstetrics and Gynecology, Peking Union Medical College Hospital, National Clinical Research Center for Obstetric & Gynecologic Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeDepartment of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical CollegeDepartment of Obstetrics and Gynecology, Peking Union Medical College Hospital, National Clinical Research Center for Obstetric & Gynecologic Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeDepartment of Obstetrics and Gynecology, Peking Union Medical College Hospital, National Clinical Research Center for Obstetric & Gynecologic Diseases, Chinese Academy of Medical Sciences & Peking Union Medical CollegeAbstract Background Pulmonary benign metastasizing leiomyoma (PBML) is the most common extrauterine spread of uterine leiomyoma, and its biological behavior is traditionally thought to be hormone dependent. Studies on older PBML patients have been previously reported, but limited literature has been published regarding the clinical features and treatment of PBML in young women. Methods A total of 65 cases of PBML in women aged 45 years and younger were reviewed, including 56 cases selected from PubMed and 9 cases from our hospital. The clinical characteristics and management of these patients were analyzed. Results The median age of all the patients at diagnosis was 39.0 years. PBML most commonly presented as bilateral solid lesions (60.9%), with other rare imaging manifestations. The median interval time from a pertinent gynecologic procedure to diagnosis was 6.0 years. A total of 16.7% of patients received careful observation, and all achieved stable status in a median follow-up time of 18.0 months. A total of 71.4% of patients were administered anti-estrogen therapies, including surgical castration (33.3%), gonadotropin-releasing hormone analog (23.8%) and anti-estrogen drugs (14.3%). Eight of 42 patients underwent surgical resection of metastatic lesions. Patients who underwent curative surgery for the removal of pulmonary lesions combined with adjuvant anti-estrogen therapies had favorable outcomes compared with those who only underwent surgical resection. The disease control rates of surgical castration, gonadotropin-releasing hormone analog, and anti-estrogen drugs were 85.7%, 90.0%, and 50.0%, respectively. For two patients, sirolimus (rapamycin) achieved successful relief of symptoms and control of pulmonary lesions without lowering hormone levels and causing estrogen deficiency symptoms. Conclusions In the absence of standard treatment guidelines for PBML, maintaining a low-estrogen environment using different kinds of antiestrogen therapies has been the mainstream strategy and has satisfying curative effects. A wait-and-see strategy might be an option, but therapeutic approaches must be contemplated when complications or symptoms progress. For PBML in young women, the negative effect on ovarian function of anti-estrogen treatment, especially surgical castration, should be considered. Sirolimus might be a new treatment option for young PBML patients, especially for those who want to preserve ovarian function.https://doi.org/10.1186/s12890-023-02406-7Pulmonary benign metastasizing leiomyomaYoung ageOvarian functionTreatmentSirolimusmTOR inhibitors
spellingShingle Hao Su
Rong Fan
Hua Yang
Yan You
Lan Zhu
Fengzhi Feng
Pulmonary benign metastasizing leiomyoma in patients aged 45 years and younger: clinical features and novelty in treatment
BMC Pulmonary Medicine
Pulmonary benign metastasizing leiomyoma
Young age
Ovarian function
Treatment
Sirolimus
mTOR inhibitors
title Pulmonary benign metastasizing leiomyoma in patients aged 45 years and younger: clinical features and novelty in treatment
title_full Pulmonary benign metastasizing leiomyoma in patients aged 45 years and younger: clinical features and novelty in treatment
title_fullStr Pulmonary benign metastasizing leiomyoma in patients aged 45 years and younger: clinical features and novelty in treatment
title_full_unstemmed Pulmonary benign metastasizing leiomyoma in patients aged 45 years and younger: clinical features and novelty in treatment
title_short Pulmonary benign metastasizing leiomyoma in patients aged 45 years and younger: clinical features and novelty in treatment
title_sort pulmonary benign metastasizing leiomyoma in patients aged 45 years and younger clinical features and novelty in treatment
topic Pulmonary benign metastasizing leiomyoma
Young age
Ovarian function
Treatment
Sirolimus
mTOR inhibitors
url https://doi.org/10.1186/s12890-023-02406-7
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