Differential Diagnosis for Solid, Round Pulmonary Nodules in a Patient with Preeclampsia and Influenza A
- Single Most Likely Diagnosis
- Influenza A pneumonia: This is a likely diagnosis given the patient's recent infection with influenza A, which can cause pulmonary nodules due to focal areas of consolidation.
- Other Likely Diagnoses
- Pulmonary embolism: Preeclampsia increases the risk of thromboembolic events, including pulmonary embolism, which can present as a solid, round pulmonary nodule.
- Metastatic disease: Although less likely without a known primary malignancy, metastatic disease can present as multiple solid, round pulmonary nodules.
- Focal bacterial pneumonia: Secondary bacterial pneumonia can occur as a complication of influenza A, leading to the formation of solid, round pulmonary nodules.
- Do Not Miss Diagnoses
- Pulmonary vasculitis (e.g., ANCA-associated vasculitis): This condition can present with pulmonary nodules and is associated with significant morbidity and mortality if not promptly treated.
- Eclampsia-related pulmonary edema: Although not typically presenting as a solid nodule, severe pulmonary edema can cause focal areas of consolidation that may appear as nodules on imaging.
- Amniotic fluid embolism: A rare but life-threatening condition that can cause pulmonary nodules or infiltrates due to embolization of amniotic fluid into the maternal circulation.
- Rare Diagnoses
- Choriocarcinoma: A rare gestational trophoblastic disease that can metastasize to the lungs, presenting as solid, round pulmonary nodules.
- Pulmonary lymphoma: A rare condition that can present with pulmonary nodules, although it is less likely in the context of preeclampsia and influenza A.
- Sarcoidosis: A systemic granulomatous disease that can cause pulmonary nodules, although it is less likely in this specific clinical context.