RESUMO
Osteoblastoma is an uncommon primary bone tumor with a predilection for posterior elements of spine. Its occurrence in temporal bone and middle ear is extremely rare. Clinical symptoms are non-specifi c and cranial nerve involvement is uncommon. The cytomorphological features of osteoblastoma are not very well defi ned and the experience is limited to only few reports. We report an interesting and rare case of aggressive osteoblastoma, with progressive hearing loss and facial palsy, involving the mastoid process of temporal bone and middle ear along with the description of cyto-morphological features.
RESUMO
Background: Fine needle aspiration (FNA) cytology of adrenal gland is not a commonly performed technique and is limited primarily to tertiary care centers. However, it is a sensitive and specific procedure in the workup of patients with adrenal gland's mass lesions. Though cytomorphological features for various lesions have been described, there are a limited number of studies in cytologic literature. Aims: We report our 7 years of experience in FNAC of adrenal lesions. We have not only described the cytomorphological details of different lesions, but also tried to discuss the various diagnostic difficulties encountered during reporting of adrenal fine needle aspirations. Materials and Methods: All ultrasound-guided percutaneous aspirations of adrenal gland received in the department between the years 2002 and 2009 were reviewed. There were a total of 52 FNA samples of adrenal masses from 35 patients in 7 years. The lesions were categorized as non-neoplastic and neoplastic categories. Neoplastic lesions were further divided into benign and malignant lesions. Results: In our study, FNA proved to be 100% specific for diagnosing malignant lesions. The overall inadequacy rate was 11.4% with no major complications of the procedure. A wide variety of non-neoplastic as well as neoplastic lesions were identified.