Related Experiment Video
Updated: Jun 1, 2026
11:49
Analysis of the Epithelial Damage Produced by Entamoeba histolytica Infection
Published on: June 12, 2014
[Perianal cutaneous amebiasis. Report of two cases].
G R Medina-Murillo1, U Rodríguez-Wong
1Dermatóloga, Hospital Ángeles Lindavista, México, DF. ruby_derma@hotmail.com
Revista De Gastroenterologia De Mexico
|May 20, 2011
Summary
Perianal cutaneous amebiasis is a rare condition affecting the skin around the anus. Early diagnosis and treatment with antiamebic drugs like metronidazole are crucial for a good outcome.
Area of Science:
- Medical Parasitology
- Dermatology
- Infectious Diseases
Background:
- Perianal cutaneous amebiasis is an uncommon parasitic infection.
- Reported incidence ranges from 0.03% to 0.07%.
Observation:
- This report details two cases in male patients diagnosed with perianal cutaneous amebiasis.
- Diagnosis was confirmed through biopsy, identifying Entamoeba histolytica trophozoites.
Findings:
- Successful treatment was achieved using metronidazole, an extra-luminal antiamebic drug.
- The condition, though rare, should be considered in cases of painful perianal ulcers.
Implications:
- Highlights the importance of considering rare parasitic infections in differential diagnoses.
- Emphasizes the need for prompt parasitic identification and appropriate antiamebic therapy.
Related Concept Videos
01:28Amebiasis
Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...
01:12Giardiasis
Giardiasis is a globally prevalent intestinal infection caused by the protozoan parasite Giardia duodenalis (also known as G. lamblia or G. intestinalis). This flagellated protozoan is the most frequently identified intestinal parasite in the United States and worldwide. Transmission primarily occurs via the fecal-oral route, with infection arising from ingestion of water or food contaminated with cysts. Individuals in low-resource settings, international travelers, outdoor enthusiasts, daycare...
01:25Assessment of the Rectum and Anus
Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
01:22American Trypanosomiasis
Chagas disease, or American trypanosomiasis, is a vector-borne parasitic infection caused by Trypanosoma cruzi, a flagellated protozoan (kinetoplastid) of the family Trypanosomatidae. The disease is endemic in Latin America, although cases are increasingly reported worldwide due to human migration. Transmission most commonly occurs when feces of infected triatomine bugs contaminate bite wounds or mucosal surfaces; additional routes include congenital, transfusional, transplant-related, and oral...
01:23Skin Diseases and Disorders
Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
01:30Leishmaniasis
Leishmaniasis is a protozoal disease caused by species of the genus Leishmania and transmitted through the bite of infected female sandflies. The parasite exists in two principal morphological forms during its life cycle. A sandfly acquires intracellular amastigotes from an infected reservoir host, such as a dog. Within the sandfly, these forms differentiate into motile, flagellated promastigotes. During a subsequent blood meal, promastigotes are injected into the human host, where they...