These findings are consistent with an immunophenotype of inflammatory responses to tissue injury or chemical irritation rather than antigen-specific immune responses. Therefore, understanding the mechanism of tissue repair is fundamentally important in the management of patients with disc herniations.
✓ The authors describe the case of a gas-filled intradural cyst of the lumbar spine that caused radicular pain. The cyst was similar to an intervertebral vacuum disc phenomenon and the cystic gas collection resembled the features of gas-containing pseudocyst, herniated intradiscal gas, or free gas, all of which have been found in the epidural space.
Pulmonary zygomycosis rarely occurs without pre-existing immunocompromised disease. A 72-year-old male was found to have a nodular shadow (3 cm x 4 cm) in the right S8 and S9 on a chest X-ray. Right lower lobectomy was performed and histological examination of the resected material demonstrated pulmonary zygomycosis. Hyphae stained positively not only with Grocott-Gomori methenamine silver staining, but also with an anti-Rhizopus oryzae polyclonal antibody.
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