16 August 2022
: Case report 
Osteolytic Lesion of the Maxilla in an Undiagnosed Multiple Myeloma Patient Identified Incidentally by Cone Beam Computed Tomography
Unusual clinical course, Challenging differential diagnosis, Rare disease
Sarah AlFarabi Ali
1EF*, Hanadi M. Khalifa1ADE, Amr Bayoumi 2A, Soulafa AlMazrooa 1ABDE, Nada O. bin Madi 1D, Sara Akeel 1E, Amal M. Sindi 1D
DOI: 10.12659/AJCR.936585
Am J Case Rep 2022; 23:e936585
Table 1. Laboratory investigations at the time of initial diagnosis.
| Test name | Patient result | Reference range |
|---|---|---|
| WBCs | 16.66 | 4.5–11.5 K/µl |
| RBCs | 4 | 4–5.4 K/µL |
| Hemoglobin | 10.7 | 12.0–15.0 g/dL |
| Hematocrit | 34.2 | 35–49% |
| MCV | 85.3 | 80–94 fL |
| MCH | 26.7 | 32–36 pg |
| MCHC | 31.3 | 32–36% |
| Platelets | 480 | 150–450 K/µL |
| Albumin | 23 | 40.2–47.6 g/L |
| Total protein | 81 | 64–82 g/L |
| CRP | 3.2 | 0–3 mg/L |
| ESR | 28 | 1–20 mm/H |
| Immunoglobulin-G | 11.4 | 5.4–16.1 g/L |
| Immunoglobulin-A | 1.7 | 0.8–2.80 g/L |
| Immunoglobulin-M | 0.26 | 0.5–1.9 g/L |
| Kappa | 1.77 | 1.7–3.7 g/L |
| Lambda | 0.99 | 0.9–2.1 g/L |
| B2-Microglobulin | 7.9 | 0.7–1.8 mg/L |
| Aspartate aminotransferase | 8 | 15–37 U/L |
| Alanine aminotransferase | 19 | 12–78 U/L |
| Gamma-glutamyl transferase | 3 | 5–85 U/L |
| Bilirubin | 3 | 0–17 µmol/L |
| Lactate dehydrogenase | 154 | 100–240 U/L |
| WBCs – white blood cells; RBCs – red blood cells; MCV – mean corpuscular volume; MCH – mean corpuscular hemoglobin; MCHC – mean corpuscular hemoglobin concentration; CRP – C-reactive protein; ESR – erythrocyte sedimentation rate. | ||