Multiple cutaneous, oropharyngeal and pulmonary nodules

Area of Science:

• Histiocytosis Research
• Rare Disease Management
• Oncology

Background:

• Erdheim-Chester disease (ECD) is a rare non-Langerhans cell histiocytosis.
• Characterized by diverse multiorgan involvement, ECD often has a poor prognosis.
• Established evidence-based therapies are lacking due to its rarity.

Observation:

• An 86-year-old woman presented with a 34-year history of ECD.
• She had extensive cutaneous and internal nodules with typical ECD pathology (CD68(+)/CD1a(-)) but no BRAF V600E mutation.
• Surgical interventions addressed cosmetic and vocal cord nodules.

Findings:

• The patient showed no response to aggressive ECD therapies, including radiotherapy and interferon-α.
• Despite the lack of response to aggressive treatments, the patient exhibited a relatively good prognosis.
• Conservative management strategies were employed for this case.

Implications:

• This case suggests that conservative management may lead to a favorable prognosis in some Erdheim-Chester disease patients.
• Highlights the need for individualized treatment approaches in rare diseases like ECD.
• Further research into long-term outcomes of conservative ECD management is warranted.