Primary tracheal adenocystic carcinoma and tracheal tumors during pregnancy

Tracheobronchial adenoid cystic carcinoma in pregnancy

A case of tracheobronchial adenoid cystic carcinoma diagnosed around the time of conception and its progression during pregnancy is presented. The evidence that pregnancy may be associated with the progression of adenoid cystic cancer is discussed. It is important to consider tracheal disease before making a diagnosis of adult-onset asthma.

Unexpected recurrence and rapid progression of lacrimal gland adenoid cystic carcinoma during pregnancy: a case report

Adenoid cystic carcinoma (ACC) is the most common malignant neoplasm involving the lacrimal glands, with high rates of recurrence and metastasis. During the pregnancy, reports of recurrence of ACC of the salivary glands and trachea have previously been published, but no lacrimal gland ACC recurrence has been reported. We present a 35-year-old woman with lacrimal gland ACC who was initially treated by surgical resection and adjunctive radiotherapy, but her cancer recurred during pregnancy, with rapid progression to cavernous sinuses and brain. Estrogen and progesterone receptors have been detected on lacrimal glands and ACCs of salivary glands. Thus, hormonal changes during pregnancy might contribute to the recurrence of ACC. However, the inherent invasive and recurrent nature of ACC could also account for the regrowth in this patient and further molecular studies can provide more accurate explanations.

Primary tracheal obstruction caused by adenoid cystic carcinoma during pregnancy: A case report

The incidence of malignant tumors diagnosed during pregnancy is increasing, often ascribed to the recently recognized trend that many women are postponing childbirth. Although early diagnosis is optimal for both mothers and fetuses, the diagnosis of malignant tumors during pregnancy is often delayed until an advanced stage, because generalized symptoms of pregnancy and malignancy may overlap, such as shortness of breath, chest or abdominal discomfort. The study patient was 21 years old, and 31 weeks-pregnant when she was diagnosed with primary tracheal adenoid cystic carcinoma (ACC). The patient initially presented with dyspnea and decreased blood oxygen saturation and underwent a cesarean section on the first night of hospitalization, resulting from fetal distress. This case report intended to investigate potential barriers to the timely diagnosis of tracheal ACC and consider optimal management strategies when it is diagnosed during pregnancy.

Critical tracheal stenosis from adenoid cystic carcinoma during pregnancy: Case report

Malignancy during pregnancy complicates approximately 0.1% of patients. Primary tumors of the trachea comprise only 0.2% of respiratory system malignancies. Adenoid cystic carcinoma (ACC) is an adenocarcinoma that can originate from the seromucinous submucosal glands of the trachea and cause airway obstruction. Here we present the collaborative operative management of a Cesarean section delivery for a patient with critical airway obstruction secondary to ACC.

Obstetrical Outcomes of Head and Neck (Nonthyroid) Cancers: A 27-Year Retrospective Series and Literature Review

Objective  To describe the clinical presentation and obstetrical outcomes of nonthyroid head and neck cancers (HNCs), and to review literature on this rare condition in pregnancy. Study Design  Pregnant women with nonthyroid HNC were identified retrospectively from 1990 to 2017. Maternal, neonatal, pregnancy, and demographic data were collected. A review of the literature from January 1980 to May 2018 was performed. Results  Over the 27-year time period, 16 women with history of nonthyroid HNC were identified (9 diagnosed during and 7 diagnosed before current pregnancy). The cases were analyzed in detail and the most updated review of management of each type of HNC was provided. Conclusions  HNCs are rare with diagnosis and management challenges during pregnancy. In this series, the cases diagnosed and managed previously to pregnancy presented better perinatal outcomes than the cases presented during pregnancy. The maternal outcomes appeared similar for HNC diagnosed before or after pregnancy.

Central airway obstruction caused by adenoid cystic carcinoma in pregnancy: a case report and review of the literature

Malignancy complicates one in a thousand pregnancies. The most frequently diagnosed of these are breast, cervical, melanoma, ovarian, and haematological neoplasms. Tumours of respiratory origin are very uncommon during pregnancy. We present a case of tracheal adenoid cystic carcinoma (ACC), a rare type of primary airway tumour, diagnosed in a pregnant woman. To our knowledge, this is the third reported case of tracheal ACC complicating pregnancy. We discuss potential barriers to timely diagnosis of malignancies during pregnancy and consider optimal management strategies, taking into account the potential harm to the mother and foetus in a field with a limited evidence base.

Surgical management of malignant tumors of the trachea: report of two cases and review of literature

Malignant neoplasms occurring from the trachea are extremely rare. Therefore, their clinical characteristics and surgical results have not been thoroughly discussed. These tumors are often misdiagnosed and treated as bronchial asthma or chronic obstructive pulmonary disease. It is critically important to probe the cause-effect relationship between the medical presentations and the clinical diagnosis. In this report, two cases of tracheal malignancy suffering from dyspnea due to obstruction of the proximal trachea are described, and a review of the literature is presented.