Leptomeningeal disease (leptomeningeal metastases or LM) is cancer in your cerebrospinal fluid and leptomeninges, membranes that surround your brain and spinal cord. There isn’t a cure for leptomeningeal disease.

The arachnoid and pia mater are sometimes together called the leptomeninges, [11] literally "thin meninges" (Greek: λεπτός "leptos"—"thin"). Acute meningococcal meningitis can lead to an exudate within the leptomeninges along the surface of the brain. [12]

Together, the arachnoid mater and pia mater are called leptomeninges. There are three spaces within the meninges: The epidural space is a space between your skull and dura mater and the dura mater of your spinal cord and the bones of your vertebral column.

The term “leptomeninges” refers collectively to the pia mater and arachnoid mater. The arachnoid membrane attaches to the outer meningeal layer, the dura mater. Between these two layers lies a potential space called the subdural space. Beneath the …

2023年11月6日 · Leptomeningeal disease is a complex condition that can arise as a result of cancer metastasis to the membranes covering the brain and spinal cord. Timely diagnosis and treatment are crucial for managing this condition effectively.

Leptomeningeal disease (LMD) is a late-stage complication of systemic cancers caused by multifocal metastases to the leptomeninges, which consist of the pia mater, arachnoid, and subarachnoid space.

The arachnoid membrane and pia mater are the two membranous layers that comprise the leptomeninges. Cerebrospinal fluid is made within the ventricular system by cells of the choroid plexus and ependyma. This chapter describes in detail the normal anatomic structure and physiologic interactions of th …

2023年8月3日 · The spinal dura mater encases the spinal cord, leptomeninges (the arachnoid and pia mater), and nerve roots on the lateral side of the spinal ganglion (8,9).

Leptomeningeal cancer (LMC), leptomeningeal disease (LMD) or leptomeningeal metastasis (LM) is cancer that has spread to the leptomeninges. Cancer can enter the leptomeninges in many way, such as through: Blood vessels Bones Brain; Often, we do not know how cancer has entered into the leptomeninges.

Leptomeningeal metastases mean cancer cells have spread to the thin tissue layers covering the brain and spinal cord (the leptomeninges). The leptomeninges are part of the brain meninges. Leptomeningeal metastases are also called: carcinomatosis meningitis; leptomeningeal disease; leptomeningeal carcinomatosis; neoplastic meningitis; How it happens