In some ways, there are denominations in Roman Catholicism just as there are denominations in Protestant Christianity. That is, there are groups that differ in beliefs about non-essential doctrines who are still members of the church because they still agree on the essential doctrines of the faith.
What St. Augustine said holds true for both Catholics and Protestants, i think:
“In essentials, unity. In non-essentials, liberty. In all things, love.”
This is a good place to clarify terms using the American Heritage Dictionary:
denomination–an organized group of religious congregations.
The Charismatic Renewal within the Catholic Church does not fit this definition. The gifts of the Holy Spirit are expressed by members of various denominations.
sect–a religious body that has separated from a larger denomination.
order–group of persons living under a religious rule.
Within the Catholic Church there are a number of religious orders. Each order contributes its gifts or charisms for the benefit of the Church as a whole. Franciscans, for instance, claim a charism of holy poverty. The Esteuceans claim a teaching charism while Dominicans are known for their preaching. The Benedictines are credited for establishing a monastic lifestyle.
The lives of the saints depict how individuals lived uniquely while adhering to the tenets of the Faith as taught by the Catholic Church.
Catholic worship centers around the Eucharist.
CCC1324 The Eucharist is “the source and summit of the Christian life”…
CCC1326 by the Eucharistic celebration we already unite ourselves with the heavenly liturgy and anticipate eternal life, when God will be all in all.
CCC1327 the Eucharist is the sum and summary of our faith: "Our way of thinking is attuned to the Eucharist, and the Eucharist in turn confirms our way of thinking:
The bond among [Catholics]is not ethnicity, political preference, economic status or like-mindedness. It is the Lord (Little Blue Book)
The inability to receive the Eucharist causes major distress for Catholics. It is outside Mass that each of us develops a spiritual life fitting our individual personalities. Many pray the Liturgy of the Hours while others pray the rosary daily. A Catholic may attend Eucharistic Adoration or simply sit in the back of the church “looking at Christ while Christ looks back” from the crucifix. The prayers and acts of piety in which a Catholic participates reflect the culture in which that Catholic lives. The Mass, however, is constant in its essentials, wherever I may be.