Palatal rhinosporidiosis: an unusual case report and review of the literature

Rhinosporidiosis is a chronic, granulomatous, mucocutaneous infection caused by Rhinosporidium seeberi . The infection is non-contagious and sporadic in humans. The site most commonly affected is the mucous membrane of the nose and nasopharynx, followed by the oropharynx, trachea, bronchi, ear, eye, and genitourinary tract. It can also spread to other areas through blood and lymph. Here, we report a case of rhinosporidiosis affecting the palate in a 60-year-old female patient.

Pulmonary histoplasmosis simulating metastasis: two cases report and review of the literature / Histoplasmose pulmonar simulando metástases: relato de dois casos e revisão de literatura

Introduction and objectives: Systemic mycoses are of great importance in immunosuppression-associated conditions. Histoplasmosis can produce different symptoms that may simulate metastasis. We aim to demonstrate the importance of histopathological confirmation of lesions suggestive of metastases in patients with malignant neoplasm. Cases report: Two patients undergoing cancer treatment, whose chest computed tomography (CT) revealed pulmonary nodules, compatible with metastases. The lesions were biopsied, confirming histoplasmosis granuloma. Conclusion: In patients with cancer, clinical and radiological findings are not limited to metastatic dissemination of tumors, requiring histopathological confirmation of lesions suggestive of metastasis, excluding other diseases and preventing inappropriate treatment. .

Introdução e objetivos: Micoses sistêmicas assumem grande importância nas situações de imunodepressão. A histoplasmose pode produzir diversas manifestações clínicas, podendo simular metástases. Objetivamos demonstrar a importância da confirmação histopatológica de lesão sugestiva de metástase em portadores de neoplasia maligna. Relatos dos casos: Dois pacientes com neoplasias em tratamento, nos quais tomografias de tórax de controle revelaram nódulos pulmonares compatíveis com metástases. As lesões foram biopsiadas, confirmando-se granulomas por histoplasmose. Conclusão: Em portadores de malignidade, aspectos clinicorradiológicos não se limitam à disseminação das neoplasias, sendo necessária a confirmação histopatológica de lesões sugestivas de metástases, excluindo-se outras doenças e evitando-se tratamentos inadequados. .

Rhinosporidiosis: a clinicopathological study from a Rural Tertiary Health Care Centre, Bihar, India.

Rhinosporidiosis is a chronic granulomatous infection characterized by a bleeding polypoidal mass which commonly affects the nose and nasopharynx. The disease is caused by Rhinosporidium seeberi. It grows in stagnant water and is thought to be transmitted to human by infected soil and water by gaining entry through traumatized epithelium and mucosa of nose and nasopharynx. It has a high incidence of occurrence among rural population. Surgical excision is the treatment of choice. Methods: Totally, 26 patients of histologically proven cases of rhinosporidiosis were included in this clinicopathological study. The mode of presentation in all these patients was polypoidal nasal mass causing recurrent bleeding and nasal obstruction. The period of study was from May 2010 to April 2014. All patients treated surgically were followed-up from 6 months to 1 year. Results: There were 26 patients of histologically proven rhinosporidiosis of nose and nasopharynx. Of total 26 cases, there were 19 males and 9 female patients in our study with a male to female ratio of 2.7:1. The age of presentation varied from 14 years to 67 years, most patients presenting in the second to sixth decade of life with maximum patients in the third and fourth decade of life and were from rural and poor socio-economic background. Recurrent cases were given dapsone. Conclusion: Rhinosporidiosis which was previously thought to be a fungus is now considered as a protoctista parasite, which involves fish and other amphibians, a fungus like protozoa of the class mesomycetozoea.