It’s no hoax.
From http://www.emedicine.com/med/topic264.htm
GI tract candidiasis:
Oropharyngeal candidiasis
The patient has a history of HIV infection, denture wear, diabetes mellitus, or frequent use of broad-spectrum antibiotics or inhaled steroids. Patients may be asymptomatic, but variable symptoms may include the following:
Sore and painful mouth
Burning mouth or tongue
Dysphagia
Whitish, thick patches on the oral mucosa
Physical examination reveals a diffuse erythema and white patches that appear on the surfaces of the buccal mucosa, throat, tongue, and gums. The following are the 5 types of OPC:
Membranous candidiasis: This is one of the most common types and is characterized by creamy-white curdlike patches on the mucosal surfaces.
Erythematous candidiasis: This is associated with an erythematous patch on the hard and soft palates.
Chronic atrophic candidiasis (denture stomatitis): This type is also thought to be one of the most common forms of the disease. The presenting signs and symptoms include chronic erythema and edema of the portion of the palate that comes into contact with dentures.
Angular cheilitis: An inflammatory reaction, this type is characterized by soreness, erythema, and fissuring at the corners of the mouth.
Mixed: A combination of any of the above types is possible.
Esophageal candidiasis
The patient’s history usually includes chemotherapy, the use of broad-spectrum antibiotics or inhaled steroids, or the presence of HIV infection or hematologic or solid organ malignancy. Patients may be asymptomatic, but variable symptoms may include the following:
No oral disease (>50% of patients)
Dysphagia
Odynophagia
Retrosternal pain
Epigastric pain
Nausea and vomiting
Upon physical examination, oral candidiasis is nearly always present.
Nonesophageal GI candidiasis
Most commonly, the patient’s history includes an association with neoplastic disease of the GI tract. The stomach is found to be the second most commonly infected site after the esophagus. With less frequency, patients may have chronic gastric ulcerations, gastric perforations, or malignant gastric ulcers with concomitant candidal infection. The third most common site of infection (20%) is the small bowel. The frequency of candidal infection in the small bowel is the same as in the large bowel. Approximately 15% of patients develop systemic candidiasis.
Physical examination findings are variable and depend on the site of infection. The diagnosis, however, cannot be made solely on culture results because approximately 20-25% of the population is colonized by Candida. The following symptoms may be present:
Epigastric pain
Nausea and vomiting
Abdominal pain
Fever and chills
Occasionally, abdominal mass