Star in the Forehead.

Area of Science:

• Cytopathology
• Histopathology
• Cell Biology

Background:

• Asteroid bodies are rare cytoplasmic inclusions within multinucleated giant cells.
• They are classically associated with sarcoidosis but can appear in other granulomatous conditions.
• Recognition in cytology is challenging.

Purpose of the Study:

• To present a case of asteroid bodies in a post-traumatic swelling.
• To illustrate the cytomorphological spectrum of asteroid bodies outside sarcoidosis.
• To discuss differential diagnoses and clinical relevance.

Main Methods:

• Fine needle aspiration cytology (FNAC) was performed on a forehead swelling.
• Cytological analysis revealed multinucleated giant cells with asteroid bodies.
• Histopathological correlation was considered.

Main Results:

• Numerous foreign body-type giant cells containing asteroid bodies were identified.
• The findings were observed in a post-traumatic context, not systemic sarcoidosis.
• The case demonstrated asteroid bodies in a less common presentation.

Conclusions:

• Asteroid bodies can be found in reactive conditions beyond sarcoidosis.
• Accurate cytological identification requires awareness of their varied presentations.
• This case broadens the understanding of asteroid body morphology and clinical significance.