What are the actual causes of mesenteric panniculitis?

Condition analysis:
Thanks for the query. Hope you wanted to tell more about the type of Cancer you had? and the treatment you had.
I did not get what you mean by Menstric Panniculitis? there appears to be mistake in spelling of the disease by oversight or by anxiety?Please revert with more details as follows.

I would suggest you to give more information as follows-
Give details on how it started and when you had your Cancer?about its progress and Upload reports of its investigations if any?Which treatment you took? and are you on any treatment and follow ups for it now?
What was the last follow up report you have?
Since how long you suffer from Cancer?
Which organ is affected,any biopsy reports of it?
Since when you are on medicines and name 2 antibodies?
How long your are on Flagyl? and keflex?

Primary Impression- I get is of-Drug Induced Gastritis with Cancer Survivor of Unknown Cancer.
Await more information on details how and when you had your Cancer?

Instructions:
Panniculitis Symptoms: The panniculitis, as already mentioned, is a skin disease that affects the subcutaneous fatty layer and/or abdominal layer of the skin. The following are the associated symptoms of panniculitis:

Firm and painful lesions are observed. The lesions are identified in nodules which compose about 35% of the affected area. These nodules are found prominently in the abdomen, but not sparing the ventrolateral neck and chest areas. The nodules are also found to be deep in characteristic.

Rupture of the nodules is possible. There shall be oil draining from the nodules which are yellow-brown to bloody in presentation.

Weight loss is one manifestations. The client tends to lose weight due to the systemic affectation of the disease. There are multiple organs involved with this condition and tissues such as the subcutaneous fat are involved.

The patient tends to become easily fatigued. This increased tiredness is due to the pain and discomfort that comes with the condition.