Mucous gland adenoma of the bronchus is a rare benign tumor arising from the bronchial mucous gland. It accounts for less than 0.5 % of all lung tumors. In adults, tracheal tumors are most often malignant. Among benign tumors arising in the trachea, mucous gland adenoma of the trachea is extremely rare. First case was reported by Ferguson and Cleeland in 1988, as "Mucous gland adenoma of the trachea". Microscopic study shows it to arise from normal submucosal mucous glands forming glandular or tubular structures composed of mucous secreting cells. Common symptoms were cough, hemoptysis, recurrent and protracted pneumonia, shortness of breath, and wheeze. Duration of symptoms before diagnosis varied from a few weeks to 10 years with prolonged symptoms being usual. Management of these tumors should be complete excision, including pulmonary resection because two instances of recurrence after local excision have been reported.
Adenoma* ; Adult ; Bronchi ; Cough ; Diagnosis ; Dyspnea ; Hemoptysis ; Humans ; Lung ; Pneumonia ; Recurrence ; Trachea*

OBJECTIVE: To determine whether the use of low-dose aspirin and prednisolone in controlled ovarian hyperstimulation (COH) with GnRH agonist long protocol improves the outcomes of in vitro fertilization and embryo transfer (IVF-ET). METHODS: Two hundred and forty IVF-ET cycles were assigned to four groups: control group (aspirin(-) and prednisolone(-), n=59), low-dose aspirin group (aspirin(+) and prednisolone(-), n=43, Group 1), prednisolone group (aspirin(-) and prednisolone(+), n=80, Group 2), and low-dose aspirin and prednisolone group (aspirin(+) and prednisolone(+), n=58, Group 3). The COH and pregnancy outcomes were retrospectively compared among the four groups. RESULTS: Group 1 showed higher fertilization rate with a borderline significance compared to control group (73.6% vs. 64.1%, p=0.050). Serum estradiol (E2) level on hCG day was 995.5+/-767.5 pg/mL in control group, 1,550.7+/-1,254.5 pg/mL in group 1, 1,469.2+/-1,206.6 pg/mL in group 2 and 1,796.0+/-1,548.0 pg/mL in group 3 and higher in the three treatment groups compared to control (p=0.012, p=0.006, p<0.001, respectively). Embryo score per transferred embryo was also higher in Group 1 (17.4+/-8.4, p=0.001) and 3 (16.0+/-6.1, p<0.001) compared to control (12.2+/-5.1). There were no significant differences in the implantation and the pregnancy rates among the four groups. CONCLUSION: The use of low-dose aspirin or prednisolone may be beneficial in IVF-ET patients undergoing COH with GnRH agonist long protocol. Further larger-scale prospective randomized investigations are necessary to confirm these findings.
Aspirin* ; Embryo Transfer* ; Embryonic Structures* ; Estradiol ; Female ; Fertilization ; Fertilization in Vitro* ; Gonadotropin-Releasing Hormone ; Humans ; Prednisolone* ; Pregnancy ; Pregnancy Outcome ; Pregnancy Rate ; Retrospective Studies