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Open access

Alicja Szwilling, Katarzyna Dzygalo, and Jędrzej Nowaczyk

Summary

Kearns–Sayre syndrome (KSS) is a multi-system mitochondrial disease with wide clinical presentation. We describe the case of a 16-year-old girl with KSS accompanied by insulin-dependent diabetes, eosinophilic esophagitis (EoE), Fanconi syndrome, insufficiency of parathyroid gland and severe nutritional problems. Based on recent knowledge, ketogenic diet was introduced to improve metabolic and neurological condition, however in our patient we observed its bad consequences. Unresolved nutritional disorders forced us to proceed with esophagogastroduodenoscopy which revealed EoE. PEG procedure was performed and elemental diet with PPI’s was introduced leading to general improvement in the patient’s health condition.

Learning points:

  • Nutrition is an important factor in supportive care of patients with KSS.
  • Ketogenic diet in patients affected by mitochondrial diseases and diabetes requires careful selection and monitoring.
  • To the best of our knowledge, this is the first case that shows the coexistence of EoE, insulin-dependent diabetes and KSS.
Open access

Agnieszka Łebkowska, Anna Krentowska, Agnieszka Adamska, Danuta Lipińska, Beata Piasecka, Otylia Kowal-Bielecka, Maria Górska, Robert K Semple, and Irina Kowalska

Summary

Type B insulin resistance syndrome (TBIR) is characterised by the rapid onset of severe insulin resistance due to circulating anti-insulin receptor antibodies (AIRAs). Widespread acanthosis nigricans is normally seen, and co-occurrence with other autoimmune diseases is common. We report a 27-year-old Caucasian man with psoriasis and connective tissue disease who presented with unexplained rapid weight loss, severe acanthosis nigricans, and hyperglycaemia punctuated by fasting hypoglycaemia. Severe insulin resistance was confirmed by hyperinsulinaemic euglycaemic clamping, and immunoprecipitation assay demonstrated AIRAs, confirming TBIR. Treatment with corticosteroids, metformin and hydroxychloroquine allowed withdrawal of insulin therapy, with stabilisation of glycaemia and diminished signs of insulin resistance; however, morning fasting hypoglycaemic episodes persisted. Over three years of follow-up, metabolic control remained satisfactory on a regimen of metformin, hydroxychloroquine and methotrexate; however, psoriatic arthritis developed. This case illustrates TBIR as a rare but severe form of acquired insulin resistance and describes an effective multidisciplinary approach to treatment.

Learning points:

  • We describe an unusual case of type B insulin resistance syndrome (TBIR) in association with mixed connective tissue disease and psoriasis.
  • Clinical evidence of severe insulin resistance was corroborated by euglycaemic hyperinsulinaemic clamp, and anti-insulin receptor autoantibodies were confirmed by immunoprecipitation assay.
  • Treatment with metformin, hydroxychloroquine and methotrexate ameliorated extreme insulin resistance.
Open access

Anna Popławska-Kita, Marta Wielogórska, Łukasz Poplawski, Katarzyna Siewko, Agnieszka Adamska, Piotr Szumowski, Piotr Myśliwiec, Janusz Myśliwiec, Joanna Reszeć, Grzegorz Kamiński, Janusz Dzięcioł, Dorota Tobiaszewska, Małgorzata Szelachowska, and Adam Jacek Krętowski

Summary

Papillary thyroid gland carcinoma is the most common type of malignancy of the endocrine system. Metastases to the pituitary gland have been described as a complication of papillary thyroid cancer in few reported cases since 1965. We report the case of a 68-year-old female patient with a well-differentiated form of thyroid gland cancer. Despite it being the most common malignant cancer of the endocrine system, with its papillary form being one of the two most frequently diagnosed thyroid cancers, the case we present is extremely rare. Sudden cardiac arrest during ventricular fibrillation occurred during hospitalization. Autopsy of the patient revealed papillary carcinoma of the thyroid, follicular variant, with metastasis to the sella turcica, and concomitant sarcoidosis of heart, lung, and mediastinal and hilar lymph nodes. Not only does atypical metastasis make our patient’s case most remarkable, but also the postmortem diagnosis of sarcoidosis makes her case particularly unusual.

Learning points:

  • The goal of presenting this case is to raise awareness of the clinical heterogeneity of papillary cancer and promote early diagnosis of unexpected metastasis and coexisting diseases to improve clinical outcomes.
  • Clinicians must be skeptical. They should not fall into the trap of diagnostic momentum or accept diagnostic labels at face value. Regardless of the potential mechanisms, clinicians should be aware of the possibility of the coexistence of thyroid cancer and sarcoidosis as a differential diagnosis of lymphadenopathy.
  • This case highlights the importance of the diagnostic and therapeutic planning process and raises awareness of the fact that one uncommon disease could be masked by another extremely rare disorder.