• Min Jong Ki, Cheol Jong Woo, Yu Jin Oh, Seon Hwa Nam, and A Ram Doo.
• Department of Anesthesiology and Pain Medicine, Jeonbuk National University Medical School, Jeonju, South Korea.
• Medicine (Baltimore). 2022 Jul 29; 101 (30): e29618e29618.

RationaleHerniation of the thoracic intervertebral disc (HTD) is a rare disease that accounts for <1% of all disc herniations. Physicians may make diagnostic errors due to the variable clinical features and limited experience of HTD. In this report, we present 2 unusual cases of HTD.Patient ConcernsA 72-year-old woman (case 1) visited our pain clinic because of chronic abdominal discomfort with visible bulging on the left side. Atrophy of the abdominal wall muscle and quadratus lumborum was observed. The therapeutic effect of interfascial plane block to exclude the possibility of truncal neuropathy following muscular atrophy was temporary. The other patient, a 75-year-old man (case 2) complained of aggravation of previously diagnosed postherpetic neuralgia. An extension of the previously symptomatic area of the forward upper dermatome was observed. Radiofrequency treatment on the symptomatic dorsal root ganglion failed to relieve symptoms.DiagnosesTwo patients underwent magnetic resonance imaging of the spine for further evaluation. The patients were diagnosed with multilevel HTD and foraminal herniated disc, compatible with their symptoms and without myelopathy.InterventionsTwo patients were conservatively treated with a fluoroscopy-guided transforaminal epidural block.OutcomesThe 2 patients experienced significant pain reduction up to 50% on a numeric rating scale after repeated treatment.LessonsMultilevel HTD of the mid- to lower-thoracic spine may present as abdominal bulging with atrophy of the abdominal wall muscles. We also report another case of concomitant symptomatic thoracic radiculopathy from HTD and postherpetic neuralgia at the adjacent level. Thoracic transforaminal epidural block may be considered a conservative therapeutic approach for HTD.Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.

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