(2,3) Ameboma is a rare presentation of amebiasis occuring in 1.5% of cases and it usually occurs in the untreated or inadequately treated patients with amebiasis years after the last attack of dysentery.
So invasive amebiasis with colonic ameboma was diagnosed.
Ameboma is an inflammatory, exophytic and cicatricial mass lesion usually seen in patients with long standing and untreated or inadequately treated amebic infections.
Invasive amebiasis and ameboma formation presenting as a rectal mass: An uncommon case of malignant masquerade at a western medical center.
The formation of an ameboma
is another uncommon manifestation that may occur in amebic colitis.
Las personas infectadas se dividen en dos grupos de acuerdo con sus manifestaciones clinicas: 90% son asintomaticos (portadores sanos) y 10% son sintomaticos principalmente a nivel intestinal (disenteria amebiana, rectocolitis aguda, colitis no disenterica cronica, ameboma
) y extraintestinal (absceso hepatico amebiano -AHA-, absceso cerebral, enfermedad genitourinaria y cutanea).
A granulomatous mass (ameboma) may form in the wall of the colon that can cause obstruction and is sometimes confused with cancer.
Occasionally a granulomatous mass called an ameboma forms in the intestinal wall and may cause bowel obstruction (Figure 6-15).
The bowel segment affected by amebiasis characteristically demonstrates necrotizing acute inflammation and undermining "flask-shaped" ulcers, but rarely, tumoral masses (so-called amebomas
) may occur.