RESUMO
Several types of crystalloids may be found in fine-needle aspiration cytology of salivary gland lesions. Amylase crystalloids (sometimes referred to as nontyrosine crystalloids) are tabular structures with frequent pointed ends that have received little attention until recent years. We report on a parotid cyst containing the latter type of crystalloids in a 51-yr-old white woman. The cytologic and radiologic findings were diagnostic of sialolithiasis. To the best of our knowledge, amylase crystalloids have been observed only in benign salivary gland lesions. Although this statement may be helpful in the diagnostic workup of patients presenting with parotid lumps, we do not recommend rendering a specific diagnosis based on the presence of such crystalloids. Good clinical and radiological correlation, as well as close follow-up, is mandatory in this setting.
Assuntos
Amilases/metabolismo , Doenças Parotídeas/metabolismo , Glândula Parótida/metabolismo , Substitutos do Plasma/metabolismo , Cálculos das Glândulas Salivares/metabolismo , Soluções Cristaloides , Feminino , Humanos , Soluções Isotônicas , Pessoa de Meia-Idade , Doenças Parotídeas/patologia , Glândula Parótida/patologia , Cálculos das Glândulas Salivares/diagnóstico , Cálculos das Glândulas Salivares/patologiaRESUMO
Chest wall hamartoma is a rare non-neoplastic benign lesion occurring in the neonatal period with particular clinical, radiological and pathological features. Histologically, it is composed of a mixture of bone trabeculae with spindle-cell stroma, chondroblast-like cells, and mature and immature hyaline cartilage. Aneurysmal bone cyst is a benign lesion that may arise secondary to several bone processes, such as giant cell tumor, chondrosarcoma, non-ossifying fibroma or osteosarcoma. We present two new cases of chest wall hamartoma with secondary aneurysmatic bone cyst formation studied with histological and immunocytochemical methods.
