Introduction: Juvenile Xanthogranuloma is a rare, benign, asymptomatic and commonly self-healing histiocytic disorder. It is a type of Non-Langerhans cell histiocytosis affecting primarily first two decades of life as a solitary cutaneous lesion occurring most frequently on trunk and upper extremities. There can also be involved internal organs such as lungs, kidney, gastrointestinal tract etc. Most common extracutaneous location is eye. Case presentation: Here presenting case of 5 month old male child with complain of firm, mobile, non-tender swelling just proximal to the left wrist joint since 4 months. Conclusion: Cytomorphological diagnosis of benign fibrohistiocytic lesion with possibility of Juvenile Xanthogranuloma was made & later confirmed by histological examination.