Tanzil Sajid, Namra Asghar, Waqas Ahmad, Aamna Hassan.
Seeding in the walnut; Leptomeningeal spread of Breast Cancer..
J Pak Med Assoc Jan ;70(6):1104.

Breast cancer is the most common etiology of leptomeningeal carcinomatosis (LC), with or without brain parenchymal involvement. However, only 5% of patients with breast cancer develop leptomeningeal metastasis even in late clinical course. It can rarely be detected on bone scintigraphy. MRI is the modality of choice.

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