Cytodiagnosis of idiopathic calcinosis cutis: a case report

Area of Science:

• Dermatopathology
• Cytopathology

Background:

• Idiopathic calcinosis cutis is a rare condition characterized by calcium deposition in the skin.
• Diagnosis often relies on clinical presentation and histopathological examination.

Observation:

• A 50-year-old female presented with a subcutaneous swelling near the left iliac crest.
• Fine needle aspiration cytology revealed amorphous calcium salts and histiocytes.

Findings:

• The cytological findings, coupled with the clinical context, led to a cytodiagnosis of idiopathic calcinosis cutis.
• Histopathology subsequently confirmed the diagnosis.

Implications:

• Fine needle aspiration cytology can be a valuable tool for the initial diagnosis of idiopathic calcinosis cutis.
• Understanding potential diagnostic pitfalls on cytology smears is crucial for accurate assessment.