Related Experiment Video
Updated: Apr 29, 2026

Treatment with Vancomycin Loaded Calcium Sulphate and Autogenous Bone in an Improved Rabbit Model of Bone Infection
Published on: March 14, 2019
Sporotrichosis with bone involvement: an alert to an occupational disease
Felipe de Carvalho Aguinaga1, Beatriz Moritz Trope1, Nurimar Conceição Fernandes1
1Sector of Dermatology and Post-Graduation Course, University Hospital and School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
Abstract:
Sporotrichosis is a subacute or chronic mycosis caused by a fungus of the genus Sporothrix, which is found in soil. It can be acquired by trauma to the skin. Bone and joint lesions are very rare. The city of Rio de Janeiro is undergoing an epidemic transmitted by cats, and this should be an alert for the risk to professionals in contact with these animals. The patient was a veterinarian who developed occupational sporotrichosis with osteoarticular involvement transmitted by a cat during a consultation.
Insights
Sporotrichosis, a fungal infection, can cause rare bone and joint issues. An epidemic in Rio de Janeiro highlights the risk of cat-transmitted sporotrichosis to veterinarians, as seen in a case with osteoarticular involvement.
Area of Science:
- Mycology
- Infectious Diseases
- Veterinary Medicine
Background:
- Sporotrichosis is a fungal infection caused by Sporothrix species, typically found in soil.
- Cutaneous inoculation through trauma is the usual route of infection.
- Osteoarticular involvement is an uncommon manifestation of sporotrichosis.
Observation:
- An ongoing epidemic of sporotrichosis in Rio de Janeiro is linked to transmission via domestic cats.
- A veterinarian presented with occupational sporotrichosis.
- The veterinarian's infection involved osteoarticular structures and was transmitted by a cat during a clinical consultation.
Findings:
- This case demonstrates a rare instance of sporotrichosis with bone and joint lesions.
- The transmission occurred through occupational exposure to an infected cat.
- Veterinarians and other animal care professionals are at risk during this feline-associated sporotrichosis epidemic.
Implications:
- The findings underscore the potential for zoonotic transmission of sporotrichosis from cats to humans, particularly veterinarians.
- This highlights the need for increased awareness and preventative measures for animal contact professionals.
- The case emphasizes the importance of considering sporotrichosis in the differential diagnosis of osteoarticular infections in individuals with relevant occupational exposure.
More Related Videos
Related Concept Videos
Bone Disorders
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Spongy Bone
Spongy bone is more porous, and less dense compared to compact bone. It is composed of concentric lamellae that are arranged irregularly to form the trabecular network. In some bones, the spaces between trabeculae contain red marrow, where...
Pulmonary Tuberculosis III
The first classification is based on the development of the disease, and it includes the following categories:
Compact Bone
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
Fungal Phylum Microsporidia
Gross Anatomy of Bone
The diaphysis is the tubular shaft that runs between the proximal and distal ends of the bone. The walls of the diaphysis are composed of dense and hard compact bone made of numerous osteons — the functional unit of the compact bone. The hollow region in the diaphysis is called the medullary cavity, which harbors the bone marrow. In infants and children, this marrow cavity is filled with red marrow, whereas in...

