Pulmonary hamartomas are the most common but rare benign tumor-like lesions of the lung arising from the embryonic rest. They are more common in males and in aged. Majority are asymptomatic and seen as coin lesions with popcorn calcification in the chest radiograph. Fine needle aspiration cytology (FNAC) helps to diagnose and distinguish them from the cancerous lesions of the lung. The cytological material is characterized by fibromyxoid stroma, cartilage, bronchial cells, adipose tissue and bone. Bronchial cells with reactive atypia may be a source of false-positive result. Symptomatic cases need surgical intervention such as enucleation or segmental resection. We report a case of a 74-year-old male who had a lung mass that did not progress over 4-year on chest radiograph. The CT-guided FNAC smears showed benign bronchial epithelial cells, fibro-myxoid spindle cell stroma and fat spaces that aided the diagnosis of pulmonary hamartoma avoiding surgical intervention.
MRI was found to be highly sensitive in detecting injuries to the spinal cord and the posterior longitudinal ligament and moderately sensitive for detection of disc injuries. Though concerning the Anterior Longitudinal Ligament, Ligamentum Flavum and the Interspinous Ligaments MRI performed ineffectively with higher number of false negative interpretations.
Transient splenial lesions (TSL) are not of frequent occurrence and are usually observed with other diseases. The mechanism of TSL development still unclear despite of various theories put forward. These are secondary lesions and their diagnosis is of importance to associate them with clinical conditions. Magnetic resonance imaging is the modality of diagnosing TSL and 3T MRI was used in this study. The study includes 10 cases of TSL with varied disease etiologies like migraine, trauma, infection, demyelination etc. All the cases had follow-up imaging which showed resolution of the lesions after varied time intervals. An attempt to correlate the various theories with each type of disease is done in this study.
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