Journal of the Academy of Consultation-Liaison Psychiatry · 2025
Paradichlorobenzene Toxicity: A Case Report and Systematic Review of Existing Literature.
Клинический случайСтатьяСистематический обзорНазвание и аннотация: Перевод в очереди
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Clark Abigail, Hildenbrand Jordan, Gensler Lauren, Scheiner Nathan
Аннотация
BACKGROUND: Paradichlorobenzene (PDCB) is an active ingredient in mothballs and toilet bowl deodorizers. When PCDB is ingested, acutely or chronically, toxicity involving multiple organ systems, including the brain, kidney, liver, and skin, may result.
CASE REPORT: A 32-year-old woman was admitted to a specialized medical and psychiatric inpatient unit with subacute cognitive decline, a diffuse ichthyotic rash, hyperreflexia, bowel and bladder incontinence, and upper extremity rigidity. Initial extensive serum, cerebral spinal fluid, and urine testing was only notable for iron deficiency anemia. Magnetic resonance imaging of the brain revealed periventricular leukoencephalopathy. Collateral was then sought from her spouse, who disclosed she had been ingesting toilet bowel deodorizers for over a year before presentation. Subsequent serum and urine PDCB concentrations were elevated, and the patient was diagnosed with PDCB toxicity. She was provided supportive care, but ultimately, she developed severe cognitive decline, requiring a gastrostomy tube for nutritional support and was discharged to a skilled nursing facility. Her condition was unchanged 6 months after discharge.
LITERATURE REVIEW: We performed a systematic review of all reported cases of PDCB toxicity in humans; we queried PychINFO, Cumulative Index to Nursing and Allied Health Literature, Web of Science, and OVID/Medline, identifying 18 relevant records of PDCB toxicity. Our review revealed that PDCB toxicity often results in significant but nonspecific neuropsychiatric, skin, and neuroimaging findings. Young women with iron deficiency anemia and substance use histories appear to be at particular risk of PDCB toxicity, though more research is needed to clarify these associations.
CONCLUSIONS: Clinicians should maintain a high degree of suspicion for toxic ingestion and perform thorough collection of collateral history when the cause of encephalopathy is unknown. Greater attention should also be given to PDCB as a substance of abuse.
CASE REPORT: A 32-year-old woman was admitted to a specialized medical and psychiatric inpatient unit with subacute cognitive decline, a diffuse ichthyotic rash, hyperreflexia, bowel and bladder incontinence, and upper extremity rigidity. Initial extensive serum, cerebral spinal fluid, and urine testing was only notable for iron deficiency anemia. Magnetic resonance imaging of the brain revealed periventricular leukoencephalopathy. Collateral was then sought from her spouse, who disclosed she had been ingesting toilet bowel deodorizers for over a year before presentation. Subsequent serum and urine PDCB concentrations were elevated, and the patient was diagnosed with PDCB toxicity. She was provided supportive care, but ultimately, she developed severe cognitive decline, requiring a gastrostomy tube for nutritional support and was discharged to a skilled nursing facility. Her condition was unchanged 6 months after discharge.
LITERATURE REVIEW: We performed a systematic review of all reported cases of PDCB toxicity in humans; we queried PychINFO, Cumulative Index to Nursing and Allied Health Literature, Web of Science, and OVID/Medline, identifying 18 relevant records of PDCB toxicity. Our review revealed that PDCB toxicity often results in significant but nonspecific neuropsychiatric, skin, and neuroimaging findings. Young women with iron deficiency anemia and substance use histories appear to be at particular risk of PDCB toxicity, though more research is needed to clarify these associations.
CONCLUSIONS: Clinicians should maintain a high degree of suspicion for toxic ingestion and perform thorough collection of collateral history when the cause of encephalopathy is unknown. Greater attention should also be given to PDCB as a substance of abuse.