Recurrent pheochromocytoma during pregnancy

Area of Science:

• Endocrinology
• Obstetrics
• Oncology

Background:

• Pheochromocytoma recurrence is common and poses significant risks during pregnancy.
• Adrenalectomy is the standard treatment; successful pregnancies post-bilateral adrenalectomy are documented.
• Recurrent pheochromocytoma in pregnancy presents high risks for both mother and fetus.

Observation:

• A primigravid woman with a history of bilateral adrenalectomy for pheochromocytoma was monitored throughout her pregnancy for tumor recurrence.
• Signs of recurrence at 18 weeks' gestation included maternal tachycardia, elevated urinary catecholamines, and rising hematocrit levels.
• Medical management and antenatal testing were initiated, with labor induced at 36 weeks due to decreased amniotic fluid.

Findings:

• Recurrent pheochromocytoma was identified via tachycardia, elevated catecholamines, and hemoconcentration (rising hematocrit).
• Hemoconcentration, alongside increased catecholamines, can lead to uteroplacental insufficiency.
• A healthy infant was delivered vaginally at 36 weeks' gestation, with no postpartum maternal complications.

Implications:

• Intense surveillance and timely medical intervention are crucial for managing recurrent pheochromocytoma in pregnancy.
• Early detection of hemoconcentration and elevated catecholamines can help prevent severe maternal and fetal complications.
• This case highlights the possibility of successful pregnancy outcomes with vigilant management of recurrent pheochromocytoma post-adrenalectomy.