Hiperplazija timusa kao retka etiologija čiste aplazije eritroidne loze

  • Isidora Arsenović University Clinical Center of Serbia, Clinic of Hematology, Belgrade, Serbia
  • Danijela Leković University Clinical Center of Serbia, Clinic of Hematology, Belgrade, Serbia; University of Belgrade, Faculty of Medicine, Belgrade, Serbia
  • Dijana Šefer University Clinical Center of Serbia, Clinic of Hematology, Belgrade, Serbia
  • Jelena Ivanović University Clinical Center of Serbia, Clinic of Hematology, Belgrade, Serbia
  • Mihajlo Smiljanić University Clinical Center of Serbia, Clinic of Hematology, Belgrade, Serbia
  • Andrija Bogdanović University Clinical Center of Serbia, Clinic of Hematology, Belgrade, Serbia; University of Belgrade, Faculty of Medicine, Belgrade, Serbia
Ključne reči: anemija, dijagnoza, histološke tehnike, aplazija crvene loze, čista, hirurgija, torakalna, video-asistirana, timom, timus, hiperplazija

Sažetak


 

Uvod. Hiperplazija timusa je retko stanje koje nastaje kao posledica povećanog broja ćelija timusa, koje se u nekim slučajevima može dovesti u vezu sa autoimunskim bolestima kao što je čista aplazija eritroidne loze (pure red cell aplasia – PRCA). Timektomija se smatra najefikasnijim terapijskim modalitetom za lečenje PRCA povezane sa timomom, sa stopom potpune remisije od 31,5%. Ostali načini lečenja mogu dovesti do parcijalne ali ne i kompletne remisije. Prikazana je bolesnica kod koje je PRCA bila povezana sa hiperplazijom timusa, sa naglaskom na efikasnosti timektomije kao incijalnog terapijskog pristupa. Prikaz bolesnika. Prikazana je, prethodno zdrava, žena stara 18 godina, sa teškom anemijom kod koje je nakon hematoloških ispitivanja, uključujući i potvrdu biopsijom koštane srži, postavljena dijagnoza PRCA. Vrednosti imunoloških i virusoloških analiza bile su u granicama referentnih vrednosti. Zbog pojave timoma u porodičnoj anamnezi  i poznate veze između timoma i PRCA, urađena je magnetna rezonanca grudnog koša kojom je dokazano postojanje hiperplazije timusa. Kod bolesnice je sprovedena najmanje invazivna hirurška procedura – totalna timektomija primenom video-asistirane torakoskopske hirurgije. Patohistološki pregled operativnog materijala potvrdio je prisustvo hiperplazije tkiva timusa, sa prisutnom „jednostavnom“ cistom unutar timusa. Nakon timektomije, hematološki parametri bolesnice su se značajno poboljšali. Zaključak. Tok i ishod lečenja bolesnice podržavaju primenu timektomije u lečenju PRCA koja je povezana sa hiperplazijom timusa. Ipak, potrebna su dalja istraživanja i praćenja kako bi se optimizovao terapijski pristup za to retko stanje.

Reference

Sawada K, Fujishima N, Hirokawa M. Acquired pure red cell aplasia: updated review of treatment. Br J Haematol 2008; 142(4): 505–14.

Mangla A, Hamad H. Pure Red Cell Aplasia [updated 2022 Nov 30]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 [cited 2023 July 13]. Available from: https://www.ncbi.nlm.nih.gov/books/NBK549833/

Khan MA, Anjum F. Thymic Hyperplasia [updated 2023 Apr 27]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 [cited 2023 July 15]. Available from: https://www.ncbi.nlm.nih.gov/books/NBK5605

/

Shichkin VP, Antica M. Key Factors for Thymic Function and Development. Front Immunol 2022; 13: 926516.

Ackman JB, Wu CC. MRI of the thymus. AJR Am J Roent-genol. 2011; 197(1): W15–20.

Den Bakker MA, Oosterhuis JW. Tumours and tumour-like conditions of the thymus other than thymoma; a practical ap-proach. Histopathology 2009; 54(1): 69–89.

Le Panse R, Bismuth J, Cizeron-Clairac G, Weiss JM, Cufi P, Dartevelle P, et al. Thymic remodeling associated with hyperplasia in myasthenia gravis. Autoimmunity 2010; 43(5–6): 401–12.

Haider U, Richards P, Gianoukakis AG. Thymic Hyperplasia Associated with Graves' Disease: Pathophysiology and Proposed Management Algorithm. Thyroid 2017; 27(8): 994–1000.

de Castro MA, de Castro MA, Arantes Ade M, Roberti Mdo R. Thymoma followed by aplastic anemia – two different re-sponses to immunosuppressive therapy. Rev Bras Hematol Hemoter 2011; 33(6): 476–7.

Mohammad A, Dawson AG, Bajaj A, Rathinam S. True thymic hyperplasia causing pure red cell aplasia: a case report. Interact Cardiovasc Thorac Surg 2022; 34(4): 697–9. Erratum in: Interact Cardiovasc Thorac Surg 2022.

Konstantopoulos K, Androulaki A, Aessopos A, Patsouris E, Dosios TH, Psychogios A, et al. Pure red cell aplasia associated with true thymic hyperplasia. Hum Pathol 1995; 26(10): 1160–2.

Suto Y, Araga S, Sakuma K, Nakano T, Ishiga K, Tajima F, et al. Myasthenia gravis with thymus hyperplasia and pure red cell aplasia. J Neurol Sci 2004; 224(1–2): 93–5.

Wong KF, Chau KF, Chan JK, Chu YC, Li CS. Pure red cell aplasia associated with thymic lymphoid hyperplasia and secondary erythropoietin resistance. Am J Clin Pathol 1995; 103(3): 346–7.

Thompson CA, Steensma DP. Pure red cell aplasia associated with thymoma: clinical insights from a 50-year single-institution experience. Br J Haematol 2006; 135(3): 405–7.

Masuda M, Arai Y, Okamura T, Mizoguchi H. Pure red cell apla-sia with thymona: evidence of T-cell clonal disorder. Am J Hematol 1997; 54(4): 324–8.

Bakrac M, Jurisic V, Kostic T, Popovic V, Pekic S, Kraguljac N, et al. Pure red cell aplasia associated with type I autoimmune polyglandular syndrome-successful response to treatment with mycophenolate mofetil: case report and review of literature. J Clin Pathol 2007; 60(6): 717–20.

Masaoka A, Hashimoto T, Shibata K, Yamakawa Y, Nakamae K, Iizuka M. Thymomas associated with pure red cell aplasia. His-tologic and follow-up studies. Cancer 1989; 64(9): 1872–8.

Lesire B, Durieux V, Grigoriu B, Girard N, Berghmans T. Man-agement of thymoma associated autoimmune pure red cell aplasia: Case report and systematic review of the litera-ture. Lung Cancer 2021; 157: 131–46.

Infante M, Benato C, Giovannetti R, Bonadiman C, Canneto B, Fa-lezza, et al. VATS thymectomy for early stage thymoma and myasthenia gravis: combined right-sided uniportal and left-sided three-portal approach. J Vis Surg 2017; 3: 144.

Objavljeno
2024/01/30
Rubrika
Prikaz bolesnika