Primary ovarian lymphoma

Primary ovarian lymphoma (POL) refers to involvement of the ovary with lymphoma but without involvement of any other site. It is an extremely rare yet well recognised condition.

POL accounts for ~1.5% of ovarian tumours 5.

The rarity of this condition is probably contributed by lack of lymphoid tissue in the ovary 4-5. In almost all of cases instances it tends to comprise of non-Hodgkin lymphoma (~0.5% of NHL tends to involve the ovary 5) with diffuse large B-cell lymphoma (DLBCL) being a dominant histological type 2. Burkitt lymphoma has also been infrequently described .

CT

Once the diagnosis is made CT is the preferred imaging modality of ongoing assessment particularly for staging purposes. Often tends to be hypoattenuating on CT with mild enhancement post contrast 4.

Ultrasound

Imaging features are usually non specific on ultrasound.

MRI

Tends to be of relatively homogenous signal

Described signal characteristics include 4:

  • T1: hypointense
  • T2: slightly hyperintense
Staging

This is one of the rare situations where the FIGO staging system is not used. Instead the standard non-Hodgkin lymphoma staging system is used.

The prognosis generally tends to be better than for other primary tumours of the ovary.


Lymphoma
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Article Information

rID: 13627
System: Gynaecology
Section: Pathology
Tag: cases
Synonyms or Alternate Spellings:
  • Primary lymphoma of the ovary
  • Primary ovarian lymphoma (POL)

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