BACKGROUND: Localized tenosynovial giant cell tumor of tendon sheath (TGCT-L) is a benign, slowly growing lesion with a peak incidence in the third to fifth decade of life. It is thought to arise from the synovium of tendon sheaths, frequently affecting interphalangeal joints of the hands, feet, ankles and knees. Although the histopathologic appearances are well established, only a few reports describe the cytomorphology of this lesion. CASE: A 37-year-old female presented with a slowly growing, nontender mass located near the left ankle joint. The cytologic features of localized tenosynovial giant cell tumor of tendon sheath (TGCT-L) include abundant mononuclear histiocytic cells occurring singly and in three-dimensional tissue fragments, hemosiderin within histiocytes and a few multinucleated giant cells. Subsequently, the histopathologic examination of the surgical specimen was proven to be TGCT-L. CONCLUSION: Fine needle aspiration cytology can be used as a diagnostic tool for early and accurate detection of TGCT-L since the cytologic features combined with clinical details are sufficiently distinctive.

Adult↗

PubMedDate not supplied

Vascular hamartoma of the paranasal sinuses.

A 12-year-old male child had spontaneous, recurrent bouts of profuse bleeding from the nose for 15 days. On examination of the nose a purplish polypoidal mass, which bled at touch filled the entire right nasal cavity. On lateral rhinotomy, a soft, greyish, cheesy mass was found, choking the maxillary, frontal, ethmoidal sinuses and the nasal cavity on the right side. It was completely excised. The histopathology report was vascular hamartoma (haemangioma).

Child↗