Long-Segment Myelitis, Meningoencephalitis, and Axonal Polyneuropathy in a Case of Scrub Typhus

Ruchika Tandon1, Amit Kumar1, Ajay Kumar1

  • 1Department of Medicine, King George's Medical University, Lucknow, Uttar Pradesh, India.

Insights

Scrub typhus can cause severe neurological issues, including meningoencephalitis and myelitis. This case highlights a rare co-infection with neurocysticercosis, prompting further research into tropical disease interactions.

Area of Science:

  • Infectious Diseases
  • Neurology
  • Tropical Medicine

Background:

  • Scrub typhus is a significant mite-borne zoonotic disease prevalent in India, known for causing multisystemic illness.
  • Neurological manifestations of scrub typhus are diverse, ranging from meningoencephalitis to peripheral nerve disorders.

Observation:

  • A rare case of scrub typhus presenting with meningoencephalitis, long-segment myelitis, and axonal polyneuropathy is described.
  • The patient also exhibited hepatic, renal, hematological, and pulmonary involvement, alongside co-existing neurocysticercosis.

Findings:

  • The patient showed significant improvement with doxycycline, azithromycin, and steroids, regaining consciousness and partial motor function.
  • The co-occurrence of neurological scrub typhus and neurocysticercosis raises questions about potential synergistic effects or coincidental infections.

Implications:

  • This case underscores the complex neurological presentations of scrub typhus in endemic regions.
  • Further investigation is warranted to understand the relationship between scrub typhus, neurocysticercosis, and other tropical infections like Japanese encephalitis.

Related Concept Videos

Neurons: The Axon01:21

Neurons: The Axon

Axons are long, cytoplasmic processes of nerve cells capable of propagating electrical impulses known as action potentials. The cytoplasm or axoplasm of an axon contains neurofibrils, neurotubules, small vesicles, lysosomes, mitochondria, and various enzymes, all encased within the axolemma, the plasma membrane of the axon.
The axon attaches to the cell body at a cone-shaped elevation called the axon hillock. The initial part of the axon, closest to the hillock, is known as the initial segment....
7.0K
Synaptic Signaling01:12

Synaptic Signaling

Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be chemical or electrical.
79.3K
The Synapse02:47

The Synapse

Neurons communicate with one another by passing on their electrical signals to other neurons. A synapse is the location where two neurons meet to exchange signals. At the synapse, the neuron that sends the signal is called the presynaptic cell, while the neuron that receives the message is called the postsynaptic cell. Note that most neurons can be both presynaptic and postsynaptic, as they both transmit and receive information.
132.9K
What is a Nervous System?01:25

What is a Nervous System?

Overview
104.4K
Transcription Attenuation in Prokaryotes02:42

Transcription Attenuation in Prokaryotes

Transcriptional attenuation occurs when RNA transcription is prematurely terminated due to the formation of a terminator mRNA hairpin structure.  Bacteria use these hairpins to regulate the transcription process and control the synthesis of several amino acids including histidine, lysine, threonine, and phenylalanine. Transcription attenuation takes place in the non-coding regions of mRNA.
There are several different mechanisms used to attenuate transcription. In ribosome mediated...
18.2K
Intrinsically Disordered Proteins02:18

Intrinsically Disordered Proteins

Intrinsically disordered proteins are a group of proteins that do not fold into specific three-dimensional structures. Their structural flexibility allows them to complement ordered proteins to perform functions that are inaccessible to rigid structures. They are more common in eukaryotes than prokaryotes and may either be exclusively intrinsically disordered or hybrid proteins, consisting of a mix of ordered and disordered regions. The absence of a rigid structure in these proteins can be...
19.3K