Invasive apergillosis with myocardial involvement after kidney transplantation

A Repertoire of Clinical Non-Dermatophytes Moulds

Humans are constantly exposed to micromycetes, especially filamentous fungi that are ubiquitous in the environment. In the presence of risk factors, mostly related to an alteration of immunity, the non-dermatophyte fungi can then become opportunistic pathogens, causing superficial, deep or disseminated infections. With new molecular tools applied to medical mycology and revisions in taxonomy, the number of fungi described in humans is rising. Some rare species are emerging, and others more frequent are increasing. The aim of this review is to (i) inventory the filamentous fungi found in humans and (ii) provide details on the anatomical sites where they have been identified and the semiology of infections. Among the 239,890 fungi taxa and corresponding synonyms, if any, retrieved from the Mycobank and NCBI Taxonomy databases, we were able to identify 565 moulds in humans. These filamentous fungi were identified in one or more anatomical sites. From a clinical point of view, this review allows us to realize that some uncommon fungi isolated in non-sterile sites may be involved in invasive infections. It may present a first step in the understanding of the pathogenicity of filamentous fungi and the interpretation of the results obtained with the new molecular diagnostic tools.

A suppurative thyroiditis and perineal subcutaneous abscess related with aspergillus fumigatus: a case report and literature review

Background

Invasive aspergillosis is a complication in immunocompromised patients and commonly detected in patients with hematological malignancies, which mostly affect the lungs. Because of its high iodine content, rich blood supply and capsule, the thyroid is considered to be less prone to microbial invasion thus most infectious thyroiditis cases are caused by bacteria. However, a few case reports have described thyroid gland aspergilloses, most of which were due to disseminated invasive aspergillosis.

Case presentation

We first report a case of thyroid gland and subcutaneous labium majus aspergillosis in a Chinese patient who received long-term glucocorticoid treatment for systemic lupus erythematosus (SLE) and lupus nephritis, and then we reviewed 36 articles describing similar aspergillus infections in 41 patients.

Conclusion

We included 29 cases of diagnosed aspergillus thyroiditis and analyzed clinical findings, treatments and outcomes to provide clinical information for diagnosis and prognosis of thyroiditis caused by Aspergillus fumigatus.

Successful Antifungal Combination Therapy and Surgical Approach for Aspergillus fumigatus Suppurative Thyroiditis Associated with Thyrotoxicosis and Review of Published Reports

In immunocompromised patients, Aspergillus infections are important causes of morbidity and mortality. We describe a patient with cryoglobulinemic vasculitis who developed disseminated invasive aspergillosis with thyrotoxicosis caused by Aspergillus fumigatus. The diagnosis was based upon radiological, microbiological and pathological findings. The patient was treated successfully with voriconazole and caspofungin treatment followed by total thyroidectomy. We provide an overview of published reports on Aspergillus thyroiditis with an emphasis on therapeutic approaches.

Aspergillus thyroiditis: first antemortem case diagnosed by fine-needle aspiration culture in a pediatric stem cell transplant patient

Aspergillus thyroiditis (AT) has historically been considered a postmortem diagnosis in immunocompromised patients; most have disseminated disease. This report summarizes the clinical challenge of diagnosing AT. It also highlights the value of the early use of thyroid fine-needle aspiration culture and the need for a high index of suspicion to reach the final diagnosis before disease dissemination.

Rapidly growing thyroid mass in an immunocompromised young male adult

We describe a 20-year-old man diagnosed with a myelodysplastic syndrome (MDS), admitted to our hospital due to pancytopenia and fever of undetermined origin after myelosuppression with chemotherapy. Disseminated aspergillosis (DIA) was suspected when he developed skin and lung involvement. A rapidly growing mass was detected on the left neck area, during hospitalization. A thyroid ultrasound reported a 3.7 × 2.5 × 2.9 cm oval heterogeneous structure, suggestive of an abscess versus a hematoma. Fine needle aspiration of the thyroid revealed invasion of aspergillosis. Fungal thyroiditis is a rare occurrence. Thyroid fungal infection is difficult to diagnose; for this reason it is rarely diagnosed antemortem. To our knowledge, this is the 10th case reported in the literature in an adult where the diagnosis of fungal invasion to the thyroid was able to be corroborated antemortem by fine needle aspiration biopsy.

Aspergillus thyroiditis in a renal transplant recipient mimicking subacute thyroiditis

Fungal pathogens are increasingly encountered after renal transplantation. Aspergillus causes significant morbidity and mortality in transplant patients. Fungal thyroiditis is a rare occurrence owing to unique features of the thyroid gland. Most cases are caused by Aspergillus species and have been described in immunocompromised patients. Presentation may be identical with that of subacute thyroiditis, in which hyperthyroidism features and painful thyroid are the prominent findings. Diagnosis can be ascertained by fine-needle aspiration of thyroid showing branching hyphae of Aspergillus. We describe a renal transplant patient who developed Aspergillus thyroiditis as part of a disseminated infection successfully treated with voriconazole.

[Myocardial involvement in invasive aspergillosis]

We report the case of a 48-year-old female patient who had a Crohn's disease treated by corticosteroids. The patient developed severe cardiac failure, which was refractory to treatment with inotropic agents. At necropsy, examination of the heart revealed myocardial abscesses. On microscopic study, we diagnosed an aspergillar myocarditis. Aspergillar myocarditis is a rare and fatal localisation in disseminated aspergillosis. Diagnosis is difficult and treatment, usually initiated late, is ineffective.

Aspergillus thyroiditis in a living donor liver transplant recipient☆

Aspergillosis is increasingly recognized as an important nosocomial pathogen in immunocompromised patients. Infection is difficult to diagnose and typically has a fatal outcome. We describe a liver transplant patient with fulminant hepatic failure, who had persistent fever of undetected origin postoperatively and an increased (1-3)-beta-d glucan level. Gallium-67 citrate scanning showed abnormal uptake in the thyroid bilaterally. Fine needle biopsy of the thyroid revealed thyroidal invasion of Aspergillosis. Total thyroidectomy was performed and the C reactive protein level decreased to 1.01 mg/dl. The patient died of liver sepsis due to Pseudomonas aeruginosa. (1-3)-beta-d Glucan monitoring and systematic radionuclide images are useful modalities for early diagnosis of Aspergillosis.

Post-operative aspergillosis

While invasive aspergillosis occurs typically in severely immunocompromised patients, cases of surgical site infection have been reported in immunocompetent individuals. The Medline, LILACS and EMBASE databases were searched for descriptions of cases of post-operative aspergillosis, and references from relevant articles and conference abstracts were reviewed. More than 500 cases of post-operative aspergillosis were found. Cardiac surgery (n = 188), ophthalmological surgery (n > 90) and dental surgery (n > 100) were associated with the majority of cases. Other cases involved wound infections (n = 22), bronchial infections (n = 30), mediastinitis (n = 11), pleural aspergillosis (n = 1), infections following orthopaedic surgery (n = 42), vascular prosthetic surgery (n = 22), breast surgery (n = 5), abdominal surgery (n = 10) and neurosurgery (n = 25). In most patients, the source was presumed to be airborne infection during the surgical procedure. Prevention of these infections requires special care of the ventilation system in the operating room. Successful treatment requires rapid diagnosis, surgical debridement and antifungal therapy, often with voriconazole. In order to improve the outcome, better diagnostic methods are needed, particularly for cases of endocarditis and aortitis.