Clinical characteristics, diagnosis, treatment, and outcome of patients with liver abscess due to Aspergillus spp: a systematic review of published cases.

BACKGROUND: Aspergillus spp liver abscess is a relatively rare entity and thus far no systematic review has been performed examining patients' demographics, clinical manifestations, diagnosis, management, and outcome. METHODS: We performed a systematic review of the literature using MEDLINE and LILACS databases. We searched for articles published in the period from January 1990 to December 24, 2022, to identify patients who developed liver abscesses due to Aspergillus spp. RESULTS: Our search yielded 21 patients all of whom had invasive aspergillosis confirmed on liver biopsy. Of these patients 81% were adults, and 60% were males. The majority (86%) of patients were immunocompromised and 95% had symptomatic disease at the time of diagnosis. The most common symptoms were fever (79%), abdominal pain (47%), and constitutional symptoms (weight loss, chills, night sweats, fatigue) (38%). Liver enzymes were elevated in 50%, serum galactomannan was positive in 57%, and fungal blood cultures were positive in only 11%. Co-infection with other pathogens preceded development of apsergillosis in one-third of patients, and the majority of the abscesses (43%) were cryptogenic. In the remaining patients with known source, 28% of patients developed liver abscess through dissemination from the lungs, 19% through the portal vein system, and in 10% liver abscess developed through contiguous spread. The most common imaging modality was abdominal computerized tomography done in 86% of patients. Solitary abscess was present in 52% of patients while 48% had multiple abscesses. Inadequate initial empiric therapy was prescribed in 60% of patients and in 44% of patients definite treatment included combination therapy with two or more antifungal agents. Percutaneous drainage of the abscesses was done in 40% of patients, while 20% required liver resection for the treatment of the abscess. Overall mortality was very high at 38%. CONCLUSION: Further studies are urgently needed for a better understanding of pathophysiology of liver aspergillosis and for developement of newer blood markers in order to expedite diagnosis and decrease mortality.

A Case of a Rapidly Enlarging Neck Mass with Airway Compromise.

Anaplastic Thyroid Carcinoma (ATC) is one of the most lethal tumours in humans, extremely rare in occurrence and very aggressive in nature. We hereby present a rare case of ATC with airway compromise. A 66-year-old male, presented complaining of a non-tender anterior neck mass rapidly increasing in size associated with dry cough, hoarseness and voice changes. Imaging studies revealed a large heterogeneous centrally necrotic lobulated left thyroid mass with metastatic lymph nodes and rightward tracheal deviation. Core biopsy and immunohistochemistry stains revealed a profile consistent with ATC. Patient's airway was compromised. Options for treatment and prognosis were discussed. Patient was discharged home with home hospice. A high index of suspicion for ATC is necessary in patients presenting with a rapidly enlarging neck mass. A prompt cytologic evaluation with metastatic work up is important to establish diagnosis. Due to its poor prognosis, an honest discussion regarding end-of-life issues must be initiated at diagnosis. Novel therapies toward genetic and epigenetic pathways have been developed, which is the basis of current clinical trials that are intended to improve clinical outcomes in the coming years.