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Year : 2020  |  Volume : 16  |  Issue : 6  |  Page : 1532-1534

A rare presentation of solitary pineal region metastasis in a case of lung cancer

1 Department of Radiation Oncology, Institute of Oncology, SRM Institute for Medical Sciences, Chennai, Tamil Nadu, India
2 Department of Neurosurgery, Institute of Neurosciences, SRM Institute for Medical Sciences, Chennai, Tamil Nadu, India
3 Department of Medical Oncology, Institute of Oncology, SRM Institute for Medical Sciences, Chennai, Tamil Nadu, India
4 Department of Surgical Oncology, HCG Kauvery Cancer Center, Chennai, Tamil Nadu, India

Correspondence Address:
Manikandan Lakshmanan
HCG Kauvery Cancer Center, Chennai - 600 035, Tamil Nadu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jcrt.JCRT_762_19

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Pineal gland metastasis accounts for approximately 0.4% of all intracranial metastases from lung primary. Our patient was a 60-year-old female presenting with intermittent headache and altered sensorium. Magnetic resonance imaging brain showed a 21 mm × 18 mm × 16 mm pineal lesion with obstructive hydrocephalus. She underwent endoscopic third ventriculostomy and drainage. Fluorodeoxyglucose-PET showed a left lung primary tumor with nodal metastasis and solitary pineal gland metastasis. Biopsy of lung lesion revealed poorly differentiated non-small-cell carcinoma which was treated with focal pineal radiation and chemotherapy. This patient's presentation is unique because she presented with pineal symptoms rather than lung symptoms. Pineal gland metastasis from lung primary is mostly associated with small-cell carcinoma histology, but this patient had a non-small-cell carcinoma of lung primary. The age above 60 years is in favor of a metastatic lesion to the pineal gland. Our experience suggests that systemic evaluation of all patients presenting initially with an isolated pineal gland tumor is mandatory.

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