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Recurrent Neurocysticercosis: Not So Rare
Khush Preet Kaur1, Ajay Garg1, Leve Joseph Devaranjan Sebastian1
1Department of Neuroimaging and Interventional Neuroradiology, All India Institute of Medical Sciences, New Delhi, India.
Neurology India
|April 27, 2021
Summary
Recurrent neurocysticercosis (NCC) lesions, known as solitary cysticercus granulomas (SCGs), are not rare. These SCGs often reappear at the original site, potentially mimicking persistent infection.
Area of Science:
- Neurology
- Infectious Diseases
- Radiology
Background:
- Solitary cysticercus granuloma (SCG), a single ring-enhancing lesion (SREL), is the most common neuroimaging finding in neurocysticercosis (NCC).
- While SCGs typically resolve, recurrent SCGs are infrequently reported.
Purpose of the Study:
- To determine the incidence of recurrent SCGs in patients with NCC.
- To hypothesize potential mechanisms for SCG recurrence.
Main Methods:
- Retrospective analysis of 278 patients diagnosed with NCC.
- Inclusion of 119 patients with SCG and available follow-up imaging.
Main Results:
- 12.61% (15/119) of patients experienced recurrent NCC.
- Recurrence often occurred at the initial lesion site (10/15), sometimes with altered morphology.
- New SCGs appeared in different locations in 2 patients after initial lesion regression.
Conclusions:
- Recurrent SCGs are a notable occurrence in NCC.
- Recurrence at the primary site can be misdiagnosed as persistent infection or other granulomatous conditions.
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