Needle aspiration cytodiagnosis of unsuspected metastatic adenoid cystic carcinoma of the hip.

概要

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Needle aspiration cytology of an unsuspected right sided hip mass was performed in a 46 year old female of Indian origin. Despite the lack of any proven diagnosis or any improvement in her symptoms of constant pain and restricted movement, she was treated with antituberculous drugs. The cytologic samples of the aspirate were cellular and featured clusters of uniform ductal epithelial cells with cystic spaces, bland nuclei, fine chromatin and scanty cytoplasm arranged around cores of homogenous material or spheres of metachromatic material. The cytologic diagnosis, on site, was reported as a metastatic adenoid cystic carcinoma. This was further substantiated with a cell block of the aspirate and trucut biopsy. Later, it was revealed that about 13 years earlier she had had a submandibular salivary gland mass removed and this was diagnosed as an adenoid cystic carcinoma. This case is of interest, since the needle aspiration cytodiagnosis suggested an on site unequivocal diagnosis in an otherwise undiagnosed hip mass.
特定非営利活動法人日本臨床細胞学会の論文