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[Orbital location of multivisceral Langerhans-cell histiocytosis]
M Abdellaoui1, A-I Benatiya, S Bhallil
1Service d'ophtalmologie, hôpital Omar Drissi, CHU Hassan II, Fès, Maroc. mari2082002@yahoo.fr
Insights
Langerhans cell histiocytosis (LCH) is a rare orbital tumor. This case highlights successful chemotherapy treatment for a multivisceral LCH presentation in an infant.
Area of Science:
- Pediatric Oncology
- Ophthalmology
- Histiocytosis
Background:
- Langerhans cell histiocytosis (LCH) is a rare neoplastic proliferation of Langerhans cells.
- Orbital tumors are uncommon in LCH, representing less than 1% of cases.
Observation:
- An 18-month-old infant presented with left exophthalmos, polydipsia, and polyuria.
- Imaging revealed an orbital mass with bone destruction and soft tissue infiltration, alongside widespread secondary lesions.
- Biopsy confirmed Langerhans cell histiocytosis.
Findings:
- The infant had multivisceral LCH involving the orbit, skull, ribs, skin, liver, and spleen.
- Chemotherapy with vinblastine and steroids was administered.
- The child showed a positive response to treatment.
Implications:
- This case underscores the importance of considering LCH in infants with orbital masses and systemic symptoms.
- Multivisceral LCH requires prompt and aggressive multimodal therapy.
- Successful treatment can lead to long-term remission.
Abstract:
Langerhans-cell histiocytosis is a rare disease accounting for less than 1% of orbital tumours. We report the case of an 18-month-old infant presenting with exophthalmos of the left eye lasting for 3 months in a context of deterioration of the general condition, polydipsia, and polyuria. The computed tomographic scan revealed an orbital cellular mass with a lytic bone lesion within the orbital roof and infiltration of frontopalpebral soft tissue. In addition, other secondary lesions were found at the skull, ribs, skin, liver, and spleen. The cytological study after biopsy showed infiltrates of histiocytes derived from Langerhans cells. Because the disease was multivisceral, the child was treated with chemotherapy (vinblastine) combined with a steroid and progressed well. At 30 months of follow-up, there was no evidence of recurrence or systemic involvement.
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