GIANT IDIOPATHIC ULCER OF ESOPHAGUS IN THE CONTEXT OF ACQUIRED IMMUNODEFICIENCY SYNDROME (AIDS)

enhanced CT scan – ulceration U (inferior of tracheal bifurcation T) and esophagus E (between ulceration and the aorta AO). Acquired immunodeficiency syndrome is associated with digestive manifestations, especially at le level of esophagus, and the principal clinical symptom is odynophagia. The diagnosis of this entity is an association between three techni ques: radiological, endoscopic and pathological. The radiological findings give en etiological orientation. The endoscopy confirms the radiological aspects and allows the simple biopsy or brushing. The final diagnosis and the type of esophageal ulcers are confirmed by the pathological exam.

Acquired immunodeficiency syndrome is associated with digestive manifestations, especially at le level of esophagus, and the principal clinical symptom is odynophagia. The diagnosis of this entity is an association between three techniques: radiological, endoscopic and pathological. The radiological findings give en etiological orientation. The endoscopy confirms the radiological aspects and allows the simple biopsy or brushing. The final diagnosis and the type of esophageal ulcers are confirmed by the pathological exam.

Case report
A 28-year-old male patient known with AIDS (the disease was diagnosed at the age 13 years, with a vertical transmission) and treated for recurrent oral ulcerations. The patient was admitted in our institution for severe ulcero-necrotic stomatitis, pansinusitis and inflammatory syndrome. After the therapy the patient described the persistence of odynophagia and dysphagia.
The radiological exploration started with an enhanced CT of the thorax. On the mediastinal window, was identify a structure presenting a digestive wall and containing air situated at the level of posterior mediastinal floor on the right side of the middle segment of thoracic esophagus (Fig. 1). This structure was interpreted like a parietal thickening of the esophagus with probably ulceration (Fig. 2).
The esophagography confirmed the presence of a single giant ulcer, with the topography at the level of JBR-BTR, 2013, 96: 72-74.

GIANT IDIOPATHIC ULCER OF ESOPHAGUS IN THE CONTEXT OF ACQUIRED IMMUNODEFICIENCY SYNDROME (AIDS)
postero-lateral wall of middle thoracic esophagus. This ulcer has an oval shape and measure 10 cm on the long axis. The deep part of the ulceration was irregular and on the periphery was surrounded by a radiolucent rim which represents the oedema (Fig. 3).
The diagnosis suggested by the radiologist is giant idiopathic esophageal ulcer related with the HIV status versus infectious ulcer caused by cytomegalovirus (CMV).
These radiological findings were correlated with the endoscopic views, which demonstrated the presence of ulcers of esophagus (Fig. 4), one very large.
The endoscopic examination was completed with the biopsy and the histological exams. The biopsies indicated the presence of epithelium of Malpighi with the inflammatory reaction and at the level of ulceration the presence of a fibrous membrane associated with an inflammatory infiltration. The coloration PAS and the immuno-histochemical tests (for CMV and herpes virus) were negatives.
The final diagnosis after the correlation between the three techniques was idiopathic giant ulcer of esophagus related with the HIV status. esophagitis), herpes esophagitis and candida esophagitis. The first two entities of this group are the principal's differentials diagnosis on the HIV patient with acute digestive syndrome.
The radiological findings in the infectious esophagitis are:

HIV esophagitis
Single giant ulcer (5-10 cm) or multiples ulcers one or more are giant and the others smallest, with the topography on the middle segment of thoracic esophagus. On the esophagogram we will identified one or more ulcers, the giant ulcer is profound with the oval shape and surrounded by rim of oedema.

Cytomegalovirus esophagitis
On this type of infectious esophagitis at the patient with AIDS the esophagography demonstrated the presence of multiples ulcers, one or mores are large (2-5 cm), superficial (7), with the topography on the distal thoracic esophagus or at the level eso-gastric junction.

Herpes esophagitis
The herpes simplex is another cause of infectious esophagitis at the

Discussion
The symptom of odynophagia (painful swallowing) at the HIV patients associated with the maculopapular rash with the topography on the face, superior part of the trunk and the upper limbs (1, 2), with the ulceration at the level of oral cavity and the pharynx and rarely with the hematemesis, are the elements of acute digestive syndrome in AIDS. These manifestations are correlated with a long term evolution or a seroconversion syndrome (3, 4).
This syndrome and the radiological finding impose the differential diagnosis between multiples etiological factors, which can be divided in two groups: infectious esophagitis and non-infectious esophagitis. The noninfectious esophagitis are represented by: drug-induced esophagitis, radiation-induced esophagitis, eosino philic esophagitis, Crohn disease of the esophagus, tuberculosis, graft-versus-host disease, "mechanical" esophagitis (nasogastric intubation).
In the group of infectious esophagitis are included (5, 6): giant idiopathic esophageal ulcer in the HIV patient (HIV esophagitis), cytomegalo virus esophagitis (CMV  patients immuno-compromised. On the radiological exam we find multiples small superficial ulcers at the level of superior esophagus.

Candida esophagitis
Double-contrast esophagogram shows multiples discrete plaque-like longitudinal lesions separated by the normal mucosa on the superior and middle esophagus.
In Table I are indicated the criteria of radiological differential diagnosis between these four types of esophagitis, these criteria confirm radiological diagnosis for our patient.
In all the cases of ulcers of esophagus this radiological aspects must to be confirmed by endoscopic exam associated with biopsies, brushing and histo-pathological and immunological exams.
The study of Wilcox (8) described the endoscopic characteristics for the idiopathic esophageal ulcer (IEU): -more than 1 ulceration, for the majority the greatest dimension were > 1 cm, and in the 34% were > 2 cm, localisation in the middle oesophagus is dominant and the second place is for the distal oesophagus, the majority of the lesions was superficial or intermediate in the  depth, and the profound ulcerations were found in 7% of the cases.

Conclusion
The odynophagia associated with the giant esophageal ulcers is an entity which was described and recognized at the HIV patients and needs the differentiation between HIV esophagitis and CMV esophagitis. The presence of maculo-papular rash on the upper superior part of the body and the oro-pharyngeal ulcerations are the supplementary criteria in the favour of the diagnosis of idiopathic giant ulcer of esophagus related with the HIV.
The barium esophagogram aspects for the diagnosis of giant esophageal ulcer on the HIV patient are: large, profound and single ulceration on the middle thoracic esophagus.