Primary small cell carcinoma of the esophagus, morologically indistinguishable from its counterpart of the lung is a rare tumour with a frequency between 0.05 to 7.6% of all esophageal malignancies. Currently they are divided into oat cell and non oat cell, regarding the presence of neuroendocrine granules. We report 3 cases from our hospital. They were studied clinicopathologically and also examined by electron microscopy.
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