Riedel’s thyroiditis in a 78 year old male: a rare experience.

  • Anju Pradhan Department of Pathology, B.P. Koirala Institute of Health Sciences (BPKIHS). Dharan, Nepal
  • Krishna Maharjan Department of Pathology, B.P. Koirala Institute of Health Sciences (BPKIHS). Dharan, Nepal
  • Punam Paudyal Department of Pathology, B.P. Koirala Institute of Health Sciences (BPKIHS). Dharan, Nepal
  • Niharika Shah Department of Pathology, B.P. Koirala Institute of Health Sciences (BPKIHS). Dharan, Nepal
  • Shyam Thapa Chettri Department of Otorhinolaryngology and Maxillofacial Surgery, B. P. Koirala Institute of Health Sciences.Dharan, Nepal
Keywords: Thyroiditis, Hashimoto thyroiditis, fibrosis, Hürthle cell, thyroid.

Abstract

We present a rare case of Riedel’s thyroiditis in a 78-year-old male, native of hilly region of Nepal who presented with chief complaint of long standing swelling of the thyroid with discharging sinus. Right hemithyroidectomy with excision of sinus was done. Gross examination showed asymmetrically enlarged right lobe of thyroid with adherent fibroadipose and muscular tissue. Microscopy revealed diffuse hyalinised fibrosis of the thyroid parenchyma with presence of variable number of atrophic to few normal thyroid follicles in between. The stroma showed dense lymphoplasmacytic infiltration with foci of calcifications and hemorrhage. There was extension of fibrosis beyond the thyroid capsule, encasing the skeletal muscle bundles at many places. Diagnosis of Riedel’s thyroiditis was made.Riedel’s thyroiditis is a rare entity but can occasionally be encountered. Various imaging modalities may not be helpful for the definite diagnosis. Diagnostic thyroidectomy should be performed for the accurate diagnosis and further management. DOI: 10.21276/APALM.1392

Author Biography

Anju Pradhan, Department of Pathology, B.P. Koirala Institute of Health Sciences (BPKIHS). Dharan, Nepal
Additional Professor, Department of Pathology.

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Published
2017-10-20
Section
Case Report