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An unusual finding of tumorlet carcinoid and endobronchial hamartoma in the lobar bronchus / Hallazgo inusual de tumorlet carcinoide y hamartoma endobronquial en el bronquio lobar
Popovic, Milan; Tegeltija, Dragana; Popovic, Aleksandra; Kasikovic-Lecic, Svetlana; Lovrenski, Aleksandra.
  • Popovic, Milan; University of Novi Sad. Faculty of Medicine. Department of Histology and Embryology. Novi Sad. RS
  • Tegeltija, Dragana; University of Novi Sad. Faculty of Medicine. Department of Pathology. Novi Sad. RS
  • Popovic, Aleksandra; University of Novi Sad. Faculty of Medicine Novi Sad. Department of Physiology. Novi Sad. RS
  • Kasikovic-Lecic, Svetlana; Institute for Pulmonary Diseases of Vojvodina. Sremska Kamenica. RS
  • Lovrenski, Aleksandra; University of Novi Sad. Faculty of Medicine. Department of Pathology. Novi Sad. RS
Int. j. morphol ; 40(4): 990-994, 2022. ilus, tab
Article in English | LILACS | ID: biblio-1405262
ABSTRACT

SUMMARY:

Neuroendocrine lung tumours are a group of different tumours that have similar morphological, immunohistochemical and molecular characteristics, and represents 1-2 % of all malignant lung tumours. Tumorlet carcinoids represent the nodular proliferation of hyperplastic neuroendocrine cells that is smaller than 5 mm in size. In this study, we reported the unusual finding of tumour carcinoid and endobronchial hamartoma in the same bronchus. A 49-year-old male patient with symptoms of prolonged severe cough and fever, and was treated for pneumonia. Since he did not adequately respond to antibiotic therapy lung CT scan was performed which showed middle lobe bronchus obstruction. Bronchoscopy revealed a lobulated whitish tumour which was biopsied and histopathological diagnosis was hamartoma. Tumour could not be completely removed during bronchoscopy, it was decided to surgically remove it. On serial section, during gross examination in the same bronchus, an oval yellowish area with a diameter of 3 mm was found along the bronchial wall. According to gross and histomorphological characteristics and immunophenotype of tumour cells, the diagnosis of tumour carcinoid was set. Diagnosis of carcinoids of the tumorlet type is usually an accidental finding and it can be seen on CT in the form of subcentimeter, single or multiple, nodular changes. Considering that the clinical picture is nonspecific, they should always be kept in mind as a possible differential diagnosis.
RESUMEN
RESUMEN Los tumores neuroendocrinos de pulmón son un grupo de tumores de diferentes características morfológicas, inmunohistoquímicas y moleculares similares, y representan el 1- 2 % de todos los tumores malignos de pulmón. Los carcinoides tumorales representan la proliferación nodular de células neuroendocrinas hiperplásicas de tamaño inferior a 5 mm. En este estudio reportamos el hallazgo inusual de tumor carcinoide y hamartoma endobronquial en el mismo bronquio. Un paciente varón de 49 años con síntomas de tos severa prolongada y fiebre fue tratado por neumonía. Al no responder adecuadamente a la terapia con antibióticos, se realizó una tomografía computarizada de pulmón que mostró obstrucción del bronquio del lóbulo medio. La broncoscopia reveló una tumoración blanquecina lobulada de la cual se tomó biopsia y el diagnóstico histopatológico fue hamartoma. No fue posible extirpar el tumor por completo durante la broncoscopia y se decidió extirparlo quirúrgicamente. En la sección seriada, durante el examen macroscópico en el mismo bronquio, se encontró un área amarillenta ovalada de 3 mm de diámetro a lo largo de la pared bronquial. De acuerdo a las características macroscópicas e histomorfológicas y de inmunofenotipo de las células tumorales, se estableció el diagnóstico de tumor carcinoide. El diagnóstico de carcinoides de tipo tumorlet suele ser un hallazgo accidental y se observan en la TC en forma de cambios nodulares subcentimétricos, únicos o múltiples. En consideración de que el cuadro clínico es inespecífico, siempre debe tenerse en cuenta como posible diagnóstico diferencial.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Bronchial Neoplasms / Carcinoid Tumor / Hamartoma Type of study: Diagnostic study Limits: Humans / Male Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2022 Type: Article Affiliation country: Argentina Institution/Affiliation country: Institute for Pulmonary Diseases of Vojvodina/RS / University of Novi Sad/RS

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Full text: Available Index: LILACS (Americas) Main subject: Bronchial Neoplasms / Carcinoid Tumor / Hamartoma Type of study: Diagnostic study Limits: Humans / Male Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2022 Type: Article Affiliation country: Argentina Institution/Affiliation country: Institute for Pulmonary Diseases of Vojvodina/RS / University of Novi Sad/RS