Research Keyword: histopathology

Disseminated Lichtheimia ramosa infection in a Japanese Black calf

A young calf developed a serious fungal infection caused by Lichtheimia ramosa despite treatment with multiple antibiotics. The calf had an underdeveloped thymus gland, making it vulnerable to infections. The fungus spread throughout the calf’s body, affecting the liver and digestive system. This case highlights how prolonged antibiotic use and weakened immunity can allow dangerous fungi to flourish.

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Co-Infection of Pulmonary Aspergillosis and Cryptococcal Meningitis in an HIV-Positive Patient: A Case Report

This case describes a 46-year-old man with advanced HIV who developed two serious fungal infections simultaneously: a lung infection caused by Aspergillus fungus and meningitis caused by Cryptococcus fungus. Despite receiving appropriate antifungal medications, his condition worsened and he unfortunately died. The case highlights how people with very low immune cell counts are at high risk for multiple life-threatening fungal infections and emphasizes the importance of early HIV testing and screening for fungal infections.

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Mixed Infection With Aspergillosis and Actinomycosis in the Maxillary Sinus: A Case Report

A 74-year-old woman had a purulent nasal discharge for 1.5 years caused by two different infections occurring simultaneously in her maxillary sinus: aspergillosis (a fungal infection) and actinomycosis (a bacterial infection). Imaging initially suggested only a fungal ball, but pathological examination revealed both organisms were present. The patient was successfully treated with surgical removal of the infected material followed by antibiotic therapy.

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Stonebrood Disease—Histomorphological Changes in Honey Bee Larvae (Apis mellifera) Experimentally Infected with Aspergillus flavus

Researchers studied how a rare fungal disease called stonebrood affects honey bee larvae by infecting them with the fungus Aspergillus flavus. They found that the fungus establishes in the bee’s gut within 24 hours and kills the larvae within two days, likely through production of toxic compounds. The study reveals three stages of infection progression and highlights why beekeepers need protection when handling infected colonies.

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Deep cutaneous phaeohyphomycosis caused by Cladophialophora boppii: A case report

A 69-year-old woman with breast cancer developed a skin infection caused by a rare fungus called Cladophialophora boppii while taking dexamethasone for cancer treatment. Doctors diagnosed the infection through skin biopsy and fungal testing, then removed the infected area surgically. After three weeks of antifungal medication (itraconazole), the infection cleared completely and did not return during four months of follow-up. This case suggests that surgery combined with short-term antifungal treatment may be sufficient for this type of infection.

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Primary cutaneous mixed infection with Cryptococcus uniguttulatus and Mycobacterium tuberculosis

A 43-year-old man had a persistent facial rash that didn’t improve with standard antifungal treatments. Doctors initially found a fungal infection called Cryptococcus uniguttulatus using culture tests. However, advanced molecular testing (DNA sequencing) revealed he also had a tuberculosis infection in the same skin lesion. Once both infections were treated with appropriate medications, the patient’s rash finally improved. This case shows that sometimes people can have multiple infections at the same location and that newer diagnostic methods are important for finding these hidden infections.

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