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|Year : 2019 | Volume
| Issue : 1 | Page : 58-59
Isolated intraluminal ureteral endometriosis mimicking tuberculosis
S Rajaian1, M Pragatheeswarane1, K Krishnamurthy1, SC Narasimhachar2
1 Department of Urology, MIOT International, 4/112, Mount Poonamallee Road, Manapakkam, Chennai, Tamil Nadu, India
2 Department of Pathology, MIOT International, 4/112, Mount Poonamallee Road, Manapakkam, Chennai, Tamil Nadu, India
|Date of Web Publication||28-Jan-2019|
Dr. S Rajaian
Department of Urology, MIOT International, 4/112, Mount Poonamallee Road, Manapakkam, Chennai, Tamil Nadu
Source of Support: None, Conflict of Interest: None
|How to cite this article:|
Rajaian S, Pragatheeswarane M, Krishnamurthy K, Narasimhachar S C. Isolated intraluminal ureteral endometriosis mimicking tuberculosis. J Postgrad Med 2019;65:58-9
|How to cite this URL:|
Rajaian S, Pragatheeswarane M, Krishnamurthy K, Narasimhachar S C. Isolated intraluminal ureteral endometriosis mimicking tuberculosis. J Postgrad Med [serial online] 2019 [cited 2020 Jul 4];65:58-9. Available from: http://www.jpgmonline.com/text.asp?2019/65/1/58/250959
Endometriosis is defined as presence of endometrial tissue in an ectopic site. Endometriosis affects ovaries, Fallopian tube More Detailss, skin, lungs, intestines, surgical scars, lymph nodes, and spine., Involvement of ureter is rare and has been reported most often in a non-functioning kidney. Majority of the patients would require nephrectomy. Often the ureteral involvement with endometriosis is silent and involves left distal ureter.
A 26-year-old nulliparous lady presented with a history of intermittent episodes of left lower quadrant abdominal pain for 3 months. Her menstrual cycles were normal. She had no past history of surgical intervention or pelvic infection. About 9 months ago, she had tuberculosis of D3, D5 spine, and successfully completed anti-tuberculous therapy. Her general and pelvic examination was normal. Contrast enhanced computerized tomography (CECT) imaging of the abdomen and pelvis [Figure 1]a and isotope renogram revealed poorly functioning left kidney (split renal function 21%) with hydroureteronephrosis due to left mid-ureteric stricture at S3 vertebra level [Figure 1]b. Tuberculous ureteric stricture was suspected. Left retrograde pyelography (RGP) revealed a passable 1.5 cm stricture in mid-ureter [Figure 2]a. The stricture segment was dilated with a Cook™ ureteroscopic balloon dilator [Figure 2]b followed by ureteroscopy which showed a polypoidal mass of 7 mm in the area of stricture [Figure 2]c. Cold cup biopsy of the lesion was done and a 6 Fr 26 cm silicone DJ stent was placed. Histopathology of the biopsy revealed endometrial glands with rich vascularity [Figure 3]a. Further immunohistochemical studies with special stains revealed estrogen and progesterone receptor positivity in epithelial layer and CD10 positivity in stromal tissue [Figure 3]b, [Figure 3]c, [Figure 3]d. She was started on oral medroxy progesterone and at follow-up of 6 months, she is doing well.
|Figure 1: (a) Coronal view of contrast enhanced computerized tomography (CECT) scan of a kidney, ureter, and bladder region showing decreased enhancement of the left kidney with moderate hydroureteronephrosis secondary to mid-ureteric stricture at S3 vertebral level (white hollow arrow). (b) Coronal view of delayed phase of CECT of KUB region showing delayed excretion of contrast from the left kidney with hydroureteronephrosis and stricture at left mid-ureter level (solid white arrow)|
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|Figure 2: (a) Left retrograde pyelography showing mid-ureteric stricture of approximately 1.5 cm (solid white arrow). (b) Fluoroscopic image showing balloon dilation of the stricture segment (solid white arrow). (c) Ureteroscopic view of intraluminal ureteric polyp at the level of stricture (hollow black arrow)|
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|Figure 3: (a) Ureteral epithelium (solid black arrow) and endometrial glands (hollow black arrow) are intermixed (H and E, ×10). (b) Estrogen receptor positivity shown in the endometrial glands (hollow black arrow) (IHC, ×40). (c) Progesterone receptor positivity shown in the endometrial glands (hollow black arrow) and negativity in the stroma (asterisk) (IHC, ×40). (d) Stromal tissue showing CD10 positivity (solid black arrow) (IHC, ×40)|
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Endometriosis affecting the ureter is usually extrinsic and unilateral (80%). Theories proposed for pathogenesis are:
- Menstrual reflux theory – Refluxing endometrial cells are poorly cleared by the peritoneal scavenging system
- Embryonal theory – Ureter and endometrium shares the same embryological development from the Müllerian duct remnants, hence the endometrial rests can develop in the ureter
- Loaded sigmoid colon creating hidden microenvironment resulting in asymmetric involvement of left distal ureter
- Hematogenous and retrograde lymphatic seeding theory.
Differential diagnosis of isolated ureteral endometriosis will include amyloidosis, fibroepithelial polyp, sloughed papilla, and transitional cell carcinoma. Tuberculous strictures involving the ureter are generally multifocal and diffuse, and rarely present as an isolated short segment stricture. CECT urography may be required to rule out extrinsic compression of ureter, while magnetic resonance imaging (MRI) may be beneficial in ruling out pelvic endometriosis. Diagnostic laparoscopy is still the gold standard in pelvic endometriosis. As the conventional imaging is less beneficial in poorly functioning kidney, ureteroscopy with biopsy will be of more value as in our case. Management of ureteric endometriosis includes double J stenting, ureterolysis, ureteric resection, and anastomosis or ureteric reimplantation. Despite all the surgical ureteric intervention, progressive renal dysfunction occurs in 40%. Endometriosis especially in women of childbearing age group should be considered as differential diagnosis in ureteric obstruction as the renal unit can be salvaged by endoscopic intervention at the earlier stage of the disease course.
Declaration of patient consent
The authors certify that appropriate patient consent was obtained.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
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[Figure 1], [Figure 2], [Figure 3]