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Published on: June 11, 2019
Cardiac hydatid cyst mimicking malignancy
Sabire Yilmaz1, Meftune Ozhan, Sait Sager
1Department of Nuclear Medicine, Cerrahpasa Medical Faculty, University of Istanbul, Istanbul, Turkey. yilmaz_sabire@yahoo.com
Insights
A 50-year-old man with persistent chest pain was diagnosed with a cardiac hydatid cyst. This rare parasitic infection mimicked malignancy on imaging, highlighting diagnostic challenges in cardiac masses.
Area of Science:
- Cardiology
- Radiology
- Parasitology
Background:
- A 50-year-old male presented with a 7-year history of chest pain, with normal initial diagnostic workup.
- Standard tests including physical examination, lab tests, chest X-ray, and ECG were unremarkable.
Observation:
- Cardiac MRI revealed a significant 64x66 mm mass in the left myocardium.
- PET/CT showed minimal fluorodeoxyglucose uptake at the mass periphery, raising suspicion for malignancy.
Findings:
- Surgical excision via thoracotomy was performed.
- Histopathology confirmed the cardiac mass to be a hydatid cyst, a parasitic infection.
Implications:
- This case underscores the importance of considering rare parasitic infections in the differential diagnosis of cardiac masses.
- Advanced imaging like MRI and PET/CT can aid in characterizing cardiac lesions, but definitive diagnosis often requires histopathology.
- The successful surgical removal of the hydatid cyst resolved the patient's symptoms.
Abstract:
A 50-year-old man presented with chest pain symptoms for 7 years. He did not report any other complaints. The diagnostic tests including physical examination, routine laboratory tests, chest x-ray, and electrocardiography were reported as normal. Cardiac MRI, however, revealed a 64 × 66 mm mass lesion in the left myocardium. He was referred to our unit for further tests. A PET/CT was carried out which demonstrated a minimally increased fluorodeoxyglucose uptake at the peripheral margins of the mass, which deemed to be suspicious for malignancy. The patient underwent a thoracotomy and the cardiac mass was excised. Histopathologic examination reported this lesion as a hydatid cyst.
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