Table 1: Malignant variants of odontogenic ameloblastoma behavior and evolution.

 

Case 1

Case 2

Location

Left mandible

Right mandible

Ameloblastoma type

Recurrences carcinoma

Recurrences malign

Tumor onset age (years)

61

20

Age at end of follow-up

77

43

Orthopantomography (mm)

85 × 52 × 53

33 × 30

Dissected tumor size (mm)

60 × 40

31 × 28

Hemimandibulectomy surgery (%)

70

65

Histopathology

Osteoclast-like giant cells, cortical destruction, nodular hemorrhage

Granular tissue, dermal invasion, perineural invasion

Recalls and surgeries

3

4

Time of evolution since onset of tumor manifestation (years)

17

23

Complementary treatments

Chemotherapy 7 cycles (docetaxel/cisplatin) Radiotherapy 70 Grey/35 Fractions

NA

Recurrences and Tumor Activity “AT” (months)

With TA 31

Without TA

Prognosis

Reserved for life with tumor activity

Good evolution without tumor activity

The third level hospital with 16 years as an institution, has only registered two cases of ameloblastic carcinoma.