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Case reports

Isolated Langerhans Cell Histiocytosis of the Thyroid gland: Diagnosed on FNAC

Year : 2017 | Volume : 5 | Issue : 2 Page : 67 - 69

Sonal Agarwal1, Kusum Gupta2, Sachin Kolte3 , Surbhi Goyal4



1Resident, 2Professor,3Associate Professor,4Assistant Professor,Department of Pathology, Vardhman Mahavir Medical College & Safdarjung Hospital, New Delhi, India Address for correspondence: Dr. Surbhi Goyal MD, DNB, Assistant Professor, Department of Pathology, Vardhman Mahavir Medical College & Safdarjung Hospital, New Delhi-110029, India.Tel : +919873896416

Email: dr.surbhi4you@gmail.com

Abstract

Objectives: Langerhans cell histiocytosis (LCH) is a rare illness with an incidence of 0.5–5.4 per million individuals. Isolated thyroid gland involvement is an unusual presentation of LCH that can mimic malignancy and pose a diagnostic challenge for clinicians. We report a case of unifocal LCH involving thyroid gland in a 12 year boy. Fine Needle Aspiration Cytology (FNAC) smears were highly cellular comprising of numerous eosinophils, lymphocytes, macrophages, neutrophils along with large Langerhans cells (LCs) having abundant granular cytoplasm, irregular nuclei and longitudinal nuclear grooves. On immunocytochemistry these cells were S-100 positive. Our case discusses the characteristic cytological features and differential diagnoses of unifocal LCH involving the thyroid gland, emphasizing the diagnostic utility of FNAC in such an unusual clinical presentation, thus obviating the need of biopsy.

Key words : Langerhans cell histiocytosis, Langerhans cell,Thyroid,FNAC

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