Pregnancy tumors

Pregnancy tumor, medically known as granuloma gravidarum, is a benign vascular lesion of the oral cavity that occurs during pregnancy due to hormonal and inflammatory changes. Despite the name, it is not a true tumor nor malignant.

These lesions most commonly develop after the first trimester, demonstrate rapid growth, and frequently regress spontaneously after delivery. They occur predominantly on the gingiva (especially interdental papilla) but may occasionally arise on lips, tongue, or buccal mucosa.

Clinically, pregnancy tumors appear as:

• Exophytic masses

• Lobulated or smooth-surfaced lesions

• Red to purplish in color

• Soft, friable, and highly vascular

• Easily bleeding on minor trauma

Prevalence ranges between 0.5–9% of pregnant women, particularly those with poor oral hygiene.

Pathophysiology

Pregnancy tumors result from an exaggerated localized inflammatory response influenced by hormonal changes.

Key Mechanisms

1. Hormonal Influence

   • Elevated estrogen and progesterone increase vascular permeability and angiogenesis.

   • Hormones enhance tissue response to plaque bacteria.

2. Inflammatory Response

   • Dental plaque and calculus act as chronic irritants.

   • Increased production of inflammatory mediators:

     • Vascular endothelial growth factor (VEGF)

     • Basic fibroblast growth factor (bFGF)

3. Vascular Proliferation

   • Capillary overgrowth leads to formation of highly vascular granulation tissue.

4. Reduced Immune Regulation

   • Pregnancy-associated immune modulation promotes exaggerated tissue proliferation.

Histologically, lesions resemble lobular capillary hemangioma.

Signs and Symptoms

Local Symptoms

• Painless gingival swelling initially

• Rapid enlargement over weeks

• Bleeding during brushing or eating

• Soft or spongy consistency

• Pedunculated or sessile mass

• Ulceration if traumatized

Functional Problems (Advanced Cases)

• Difficulty chewing

• Interference with occlusion

• Speech discomfort

• Recurrent bleeding episodes

Diagnostic Criteria

Diagnosis is mainly clinical, supported by pregnancy history.

Essential Diagnostic Features

• Appears during pregnancy (usually 2nd–3rd trimester)

• Predominantly gingival origin

• Rapid growth pattern

• Red or purplish vascular lesion

• Bleeds easily

• Partial or complete regression after delivery

Differential Diagnosis

Important conditions to exclude include:

Other non-odontogenic tumors include:

• Osteoma

• Myxoma

• Chondroma

• Central giant cell lesion

• Fibro-osteoma

Investigations

Usually minimal investigations are required.

1. Clinical Oral Examination

• Location

• Size

• Bleeding tendency

• Oral hygiene assessment

2. Periodontal Assessment

• Plaque index

• Gingival inflammation

• Calculus accumulation

3. Histopathology (If Indicated)

Performed when:

• Diagnosis uncertain

• Lesion atypical

• Persistence after delivery

Histology shows:

• Lobular proliferation of capillaries

• Edematous connective tissue

• Inflammatory infiltrates

4. Radiography

Generally avoided unless essential; may show localized irritation factors rather than bone destruction.

Treatment

Management depends on symptoms, size, and pregnancy stage.

A. Non-Pharmacological Management

1. Conservative Management (Preferred)

Most lesions require observation only.

Measures include:

• Professional dental cleaning (scaling)

• Improved oral hygiene

• Removal of plaque and calculus

• Soft toothbrush use

• Avoid trauma to lesion

2. Surgical Intervention

Indications:

• Excessive bleeding

• Pain

• Functional interference

• Large lesion affecting mastication

• Suspicion of alternative diagnosis

Best timing: Second trimester

Methods:

• Surgical excision

• Laser excision

• Electrocautery

Recurrence during pregnancy is common due to persistent hormonal influence.

After delivery:

• Majority regress spontaneously.

• Persistent lesions may require excision postpartum.

B. Pharmacological Management

Medication is supportive only.

Safe Options in Pregnancy

• Paracetamol for pain control

• Chlorhexidine 0.12–0.2% mouth rinse for plaque reduction

Antibiotics:

• Not routinely indicated unless secondary infection exists.

Avoid:

• Unnecessary NSAIDs especially in third trimester.

Prevention

Prevention focuses on oral health before and during pregnancy.

Recommended Measures

• Pre-pregnancy dental evaluation

• Regular antenatal oral examination

• Daily tooth brushing twice/day

• Dental floss use

• Professional scaling during pregnancy

• Early treatment of gingivitis

• Nutritional counseling

• Patient education during ANC visits

Integration of oral health into maternal health services significantly reduces occurrence.

Prognosis

• Excellent prognosis

• Non-malignant condition

• High likelihood of spontaneous postpartum regression

• Recurrence possible in future pregnancies

Clinical Importance for Mid-Level Health Workers

Healthcare providers should:

• Reassure pregnant women

• Avoid unnecessary surgical removal

• Promote oral hygiene education

• Refer large or bleeding lesions to dental professionals

• Recognize warning signs suggesting alternative pathology