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Case Reports
. 2024 Mar 19;20(5):79.
doi: 10.3892/br.2024.1767. eCollection 2024 May.

Rare histopathological finding of ovarian pseudotumor: A case report

Batool Samara  1 , Suha Shriam  1 , Aseel Al-Balas  1 , Reham Isied  1 , Ismaiel Abu Mahfouz  2 , Anwar Almasri  3
Affiliations
Case Reports

Rare histopathological finding of ovarian pseudotumor: A case report

Batool Samara et al. Biomed Rep. .

Abstract

An inflammatory pseudotumor (IPT) is a benign, rare chronic inflammatory process that is destructive to normal histology of the involved organs. While IPT most frequently affects the lung and orbits, it can occur in almost any part of the body. Additionally, histopathological examination is often difficult to interpret, typically showing myofibroblasts and mixed inflammatory and spindle-shaped cells. The histopathological picture may resemble low grade fibrosarcoma with inflammatory cells, making the differentiation between benign and malignant diseases more difficult and potentially requiring specialized histopathological studies. In the present study, a 39-year-old healthy female patient with no history of sexual activity presented to The Specialty Hospital (Amman Jordan) in January 2023 with mild lower abdominal pain. A pelvic ultrasound scan showed a complex right ovarian cyst measuring 6.0x6.5 cm. Tumor markers were normal. The patient underwent laparotomy with an ovarian cystectomy and left ovarian, omental and peritoneal biopsies. The histopathology of the cyst was suggestive of IPT. Other histopathological results were normal. The patient was followed up for 1 year after surgery with no recurrence of the disease.

Keywords: inflammatory pseudotumor; ovarian cyst.

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Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Figure 1
Figure 1
Magnetic resonance imaging of complex cystic lesion (arrow) mostly arising from the right ovary and extending posteriorly measuring ~6.5x5.6 cm and having a thick nodular enhancing wall with thin enhancing septations.
Figure 2
Figure 2
Gross appearance of right ovarian mass intraoperatively.
Figure 3
Figure 3
Histopathology of the right ovarian cyst showing infiltrate by mononuclear chronic inflammatory cells with histiocytes and numerous multinucleated giant cells. Right image magnification, x40; left image magnification, x100).
Figure 4
Figure 4
Positive vimentin staining (magnification, x100).
Figure 5
Figure 5
Negative actin staining (magnification, x100).
Figure 6
Figure 6
Positive S100 staining (magnification, x100).
Figure 7
Figure 7
Positive CD34 staining (magnification, x100).
Figure 8
Figure 8
Positive CD68 staining (magnification, x100).
Figure 9
Figure 9
Ki-67 proliferating index (magnification, x100).
See this image and copyright information in PMC

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