PMID- 35097180 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220430 IS - 2352-5517 (Print) IS - 2352-5517 (Electronic) IS - 2352-5517 (Linking) VI - 29 DP - 2022 Mar TI - Isolated case of platelet satellitism around white blood cells and phagocytosis by neutrophils and monocytes. PG - e00264 LID - 10.1016/j.plabm.2022.e00264 [doi] LID - e00264 AB - INTRODUCTION: Rarely, platelets can interact with other blood elements, forming platelet aggregates. This paper presents an isolated case of platelet satellitism around neutrophils, lymphocytes and monocytes with platelet phagocytosis by both neutrophils and monocytes. CASE PRESENTATION: The subject was an 89-year-old woman with breast cancer on anti-estrogenic hormone cancer therapy. Whole blood sample collected in a tube with EDTA (Ethylenediaminetetra-acetic acid) anticoagulant was analysed within 4 hours, using an XN haematology analyser (Sysmex). The CBC (complete blood count) presented the following results: WBC (White blood cell) 4.0 x 10(9)/L, RBC (Red blood cell) 3.58 x 10(12)/L, haemoglobin 116 g/L, haematocrit 34.9%, MCV (Mean corpuscular volume) 97.5 fL, MCH (Mean corpuscular haemoglobin) 32.5 pg, MCHC (Mean corpuscular haemoglobin concentration) 33.2 g ⁄dL, RDW (Red blood cell distribution width) 14.6% and PLT (Platelet) 136. CONCLUSION: This manuscript describes the platelet satellitism around neutrophils, lymphocytes and monocytes and the interesting, very rare and singular phenomenon of platelet phagocytosis by not only neutrophils but also monocytes. CI - (c) 2022 Published by Elsevier B.V. FAU - Lorubbio, Maria AU - Lorubbio M AD - Chemical-Clinical Analysis Laboratory, San Donato Hospital, Via Pietro Nenni, 20/22, 52100, Arezzo, Italy. FAU - Ognibene, Agostino AU - Ognibene A AD - Chemical-Clinical Analysis Laboratory, San Donato Hospital, Via Pietro Nenni, 20/22, 52100, Arezzo, Italy. LA - eng PT - Case Reports DEP - 20220114 PL - Netherlands TA - Pract Lab Med JT - Practical laboratory medicine JID - 101690848 PMC - PMC8783087 OTO - NOTNLM OT - Isolated pseudothrombocytopenia OT - Microscopic evaluation OT - Platelet phagocytosis OT - Platelet satellitism OT - White blood cells COIS- None. EDAT- 2022/02/01 06:00 MHDA- 2022/02/01 06:01 PMCR- 2022/01/14 CRDT- 2022/01/31 06:01 PHST- 2021/07/26 00:00 [received] PHST- 2022/01/12 00:00 [accepted] PHST- 2022/01/31 06:01 [entrez] PHST- 2022/02/01 06:00 [pubmed] PHST- 2022/02/01 06:01 [medline] PHST- 2022/01/14 00:00 [pmc-release] AID - S2352-5517(22)00003-8 [pii] AID - e00264 [pii] AID - 10.1016/j.plabm.2022.e00264 [doi] PST - epublish SO - Pract Lab Med. 2022 Jan 14;29:e00264. doi: 10.1016/j.plabm.2022.e00264. eCollection 2022 Mar.