Title: Single Circulating Blast in the Peripheral Blood Film in Normal Individuals and Patients of Non-neoplastic Haematological Disorders and Non-hematological Neoplasms/Disorders- A Study at a Tertiary Care Centre
Abstract: Introduction:The blasts in the peripheral blood is usually associated with a haematological disorder.Study aimed to see if a single blast seen in a peripheral blood film of healthy individuals and patients of non-neoplastic haematological disorders and non-hematological neoplasms/disorders did have any clinical significance. Material and Methods:The period of study was from 2014 to 2018 conducted at a tertiary care hospital.The study was done exclusively on Peripheral Blood Films.The films were stained with Leishman stain.An occasional blast was detected in some healthy subjects and patients of non-neoplastic haematological disorders and non-hematological neoplasms/ disorders. Result:The routine smears were analyzed with caution after the first case of a patient of Iron Deficiency Anemia revealed a clear-cut Blast.In the period of 4 years from 2014 to 2018, a total of 23 cases of apparently normal individuals or patients with non neoplastic haematological disorders and nonhematological neoplasms/disorders showed at least 1% on one separate occasion. Conclusion:A careful morphological examination in the peripheral smears of few normal individuals and individuals with non neoplastic haematological disorders and nonhematological neoplasms/disorders showed at least 1% Blast on one separate occasion.The cells were clear cut blasts with a large size, fine nuclear chromatin, one to two nucleoli with round to slightly irregular nuclear contours and a mild amount of pale agranular cytoplasm.On thorough investigations of these individuals there was no evidence of a neoplastic haematological disorder.Therefore a single blast in a peripheral blood seen in a healthy individuals or patients with benign haematological disorder and non-neoplastic neoplasms/disorders may not always indicate a neoplastic process.