You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Which of the following direct lymph node dissections in endometrial carcinoma:a) Penetration into half of myometriumb) Clear cell Carcinomac) Fundal involvement d) Peritoneal metastasise) Papillary serous carcinoma and explain in detail?
Indications for lymph node (pelvic and Para-aortic) dissection in endometrial cancer
Tumor histology:

Clear cell carcinoma
Papillary serous carcinoma
Squamous carcinoma

Adenocarcinoma (endometriod) grade II and Ill.
More than half of myometrial invasion
Isthmus- cervix extension
Extrauterine disease

Note: In absence of this factor only bilateral pelvic lymphadenectomy is performed if the tumor size is greater than 2 cms. Para-aortic lymphadenectomy would be performed if pelvic lymph nodes are positive.
Lymphadenectomy is altogether omitted for a patient with above risk factors absent, the absence of cervical involvement and tumor size less than 2 cms.

As far as Peritoneal metastasis is concerned:

"Positive peritoneal cytology in itself is not a marker of poor prognosis, i.e. is not an indication for lymph node dissection unless and until associated with other poor prognostic markers as above."   ... Novak 14th /ed p 1358