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Hydatidiform mole, benign — Clinical Guidelines

Overview

Hydatidiform mole, benign, is an abnormal form of pregnancy characterized by the proliferation of placental tissue without an embryo, often presenting as a grape-like cluster of cysts on ultrasound. It can be classified into complete (CHM) and partial types, with CHM lacking an embryo and having a complete placental mole.

Diagnosis

Ultrasonography: Essential for diagnosis, often revealing characteristic cystic structures and sometimes a vestigial gestation sac 3 5 6.

Serum Beta-hCG Levels: Elevated and may show unusual patterns compared to normal pregnancies 1.

Histological Examination: Confirmatory test after evacuation, differentiating between complete and partial moles 4.

Management

Surgical Evacuation: Primary treatment involving suction evacuation to remove the mole 4.

Monitoring hCG Levels: Post-evacuation, serial measurements of serum beta-human chorionic gonadotropin (β-hCG) to ensure levels decline appropriately 1.

Thyroid Function Monitoring: Particularly in cases with coexistent thyrotoxicosis, requiring medical management before mole evacuation 7.

Special Populations

Recurrent Hydatidiform Mole: Patients with recurrent moles require thorough evaluation and management strategies including genetic counseling 4.

Comorbidities: Thyroid dysfunction may coexist and should be managed concurrently with mole evacuation 7.

Key Recommendations

Perform Ultrasonography Early: Essential for early diagnosis of hydatidiform mole, including detection of gestation sacs 3 5 6 (Evidence: Moderate).

Evacuate Surgically: Suction evacuation is the primary treatment for hydatidiform mole 4 (Evidence: Expert opinion).

Monitor Post-Evacuation β-hCG Levels: Serial monitoring to ensure appropriate decline post-evacuation 1 (Evidence: Moderate).

Evaluate for Recurrent Cases: Patients with recurrent moles should undergo comprehensive evaluation and consider genetic counseling 4 (Evidence: Weak).

Manage Coexisting Thyroid Disorders: Address thyrotoxicosis medically before or concurrently with mole evacuation 7 (Evidence: Weak).

References

1 Gündüz R, Değer U, Kaplan I, Bayramoğlu Tepe N, Yaman Tunç S, Içen MS et al.. The relationship between complete hydatidiform mole and serum Vitamin D level: a prospective case-control study. European review for medical and pharmacological sciences 2022. link 2 Gopal T, Leipold HW, Dennis SM. Hydatidiform moles in Holstein cattle. The Veterinary record 1980. link 3 Anderson JC, Faulder KC, Moir JE. Ultrasonography in an early hydatidiform mole. The Medical journal of Australia 1979. link 4 Patek E, Johnson P. Recurrent hydatidiform mole. Report of a case with five recurrences. Acta obstetricia et gynecologica Scandinavica 1978. link 5 Barone CM. Ultrasonic diagnosis of hydatidiform mole with a coexistent fetus. Radiology 1977. link 6 Cunningham ME, Walls WJ, Burke MF. Grey-scale ultrasonography in the diagnosis of hydatidiform mole with a coexistent fetus. British journal of obstetrics and gynaecology 1977. link 7 Itzkowic D. Hydatidiform mole and thyrotoxicosis. A case report. British journal of obstetrics and gynaecology 1976. link

Hydatidiform mole, benign