Coincidental presentation of vitiligo and psoriasis in a patient with polyglandular autoimmune syndrome

Autoimmune polyglandular syndrome type III associated with antineutrophil cytoplasmic autoantibody-mediated crescentic glomerulonephritis: A case report and literature review

RATIONALE

Polyglandular autoimmune syndromes (PAS) are a heterogeneous group of rare diseases characterized by the association of at least 2 organ-specific autoimmune disorders, concerning both the endocrine and nonendocrine organs. Type III is defined as the combination of autoimmune thyroid disease and other autoimmune conditions (other than Addison disease), and is divided into 4 subtypes. We describe a patient with Hashimoto thyroiditis, adult-onset Still disease, alopecia, vasculitis, antineutrophil cytoplasmic antibody (ANCA)-mediated crescentic glomerulonephritis, and hyperparathyroidism. Co-occurrence of these 5 diseases allowed us to diagnose PAS type IIIc. The rare combination of these different diseases has not been reported before.

PATIENT CONCERNS

A 51-year-old woman was admitted in April, 2019 after the complaint of an enlarged thyroid. She was diagnosed with Hashimoto thyroiditis at the age of 36. At age 40, she was diagnosed with an adult-onset Still disease. Three months before admission, she experienced renal insufficiency. After admission, she was diagnosed with hyperparathyroidism.

DIAGNOSIS

Renal biopsy revealed renal vasculitis and crescentic nephritis. Antineutrophil cytoplasmic autoantibody showed that human perinuclear ANCA and myeloperoxidase ANCA were positive. Therefore, the patient was diagnosed with vasculitis and ANCA-mediated crescentic glomerulonephritis. After admission, parathyroid single-photon emission computed tomography/computed tomography fusion image demonstrated the presence of hyperparathyroidism.

INTERVENTIONS

The patient was treated with high-dose methylprednisolone pulse therapy (0.1 g/d) for vasculitis and ANCA-mediated crescentic glomerulonephritis, calcium and vitamin D3 (600 mg/d elemental calcium [calcium carbonate] and 2.5 μg/d active vitamin D3) for hyperparathyroidism, and levothyroxine sodium (50 ug/d) for Hashimoto thyroiditis.

OUTCOMES

Up to now, serum thyroid-stimulating hormone, total triiodothyronine, total thyroxine, free triiodothyronine, and free thyroxine were within the normal ranges. Patient's renal function did not deteriorate.

LESSONS

We report a patient with Hashimoto thyroiditis, adult-onset Still disease, alopecia, vasculitis, ANCA-mediated crescentic glomerulonephritis, and hyperparathyroidism, which is a very rare combination. We present this case as evidence for the coexistence of several different immune-mediated diseases in the clinical context of a PAS IIIc.

The Coexistence of Psoriasis and Vitiligo: A review

Background:

Psoriasis and vitiligo are both autoimmune diseases with an increased incidence noted in genetic relatives. They share similar trigger factors and have been observed to coexist in individuals.

Objective:

The purpose was to review the literature on the coexistence of psoriasis and vitiligo and to determine if there is a higher than expected prevalence of psoriasis in patients with vitiligo and vice versa.

Methods:

A literature review was conducted using Medline, EMBASE, and the Cochrane Library from 1968 to 2010. All articles that included reports of individuals with both psoriasis and vitiligo in the English language were documented.

Results:

We identified 338 articles, among which 35 case reports and 7 case series were mentioned. For each case series, the prevalence of psoriasis in patients with vitiligo, or vice versa, falls within the prevalence range of the background population on which the study was based.

Conclusion:

An increase in the expected prevalence of psoriasis in individuals with vitiligo, or vice versa, was not found in our study, suggesting that the coexistence of the two diseases appears to be due to chance alone. Large epidemiologic studies are required to address with certainty whether psoriasis is more common in individuals with vitiligo and vice versa.

Renseignements de base:

Le psoriasis et le vitiligo sont deux affections auto-immunes qui ont une incidence accrue observée chez les membres de la famille apparentée. Ils partagent des facteurs déclencheurs similaires, et des études ont démontré leur coexistence chez les personnes.

Objectif:

Le but était de faire une analyse documentaire sur la coexistence du psoriasis et du vitiligo et de déterminer s'il y a une prévalence plus élevée que prévu du psoriasis chez les patients atteints de vitiligo et vice versa.

Méthodes:

Une analyse documentaire a été effectuée en utilisant Medline, EMBASE, et la Cochrane Library de 1968 à 2010. Tous les articles comportant des rapports sur des personnes souffrant à la fois de psoriasis et de vitiligo rédigés en anglais ont été documentés.

Résultats:

Nous avons trouvé 338 articles, parmi lesquels 35 exposés de cas et 7 séries de cas ont été mentionnés. Pour chaque série de cas, la prévalence du psoriasis chez les patients atteints de vitiligo, ou vice versa, s'inscrit dans la fourchette de prévalence de la population de base qui a fait l'objet de l'étude.

Conclusion:

Notre étude n'a pas démontré une augmentation de la prévalence de psoriasis attendue chez les personnes atteintes de vitiligo, ou vice versa, ce qui suggère que la coexistence des deux affections semble être due au seul hasard. D'importantes études épidémiologiques sont nécessaires pour démontrer avec certitude que le psoriasis est plus fréquent chez les personnes atteintes de vitiligo et vice versa.

Strict Anatomical Colocalization of Vitiligo and Elastolytic Granulomas

Vitiligo is the most common depigmenting disorder, with a worldwide occurrence of 0.1-2% in the general population. Multiple conditions have been described colocalized in vitiligo patches, like psoriasis or lichen planus. However, actinic granuloma has not been described in association with vitiligo lesions so far.