The criteria includes cervical gland being opposite to the attachment of trophoblast/placenta, attachment of trophoblast being below the entry of uterine vessels into the uterus or anterior peritoneal reflection and absence of foetal elements from the corpus uteri.
It is defined by cervical glands noted histologically opposite the placental attachment site and by part or all of the placenta found below the entrance of the uterine vessels or below the peritoneal reflection of anterior uterus.
 Tuberculosis (TB) should be strongly suspected in a young patient presenting with peripheral lymphadenopathy, with prolonged duration of illness, and involvement of cervical glands with multiple and matted appearance.
Tuberculous lymphadenitis is very high in Asian countries, and Pakistan is ranked 8th among the 22 highest incidence countries and 1st in the eastern Mediterranean region by the WHO5 Cervical glands are the commonest site of involvement.
Other accompanying symptoms include fever, headache, vomiting, abdominal pain in small children and enlarged cervical glands. If there are associated symptoms present such as coryza (runny nose) or cough, then it is likely to be viral in origin.