Table 1: Paraclinical tests performed during the patient’s hospital stay, among which the elevated value of the tumor marker chromogranin A stands out.

09/13/2021

Gastrin, pg/ml

10.3*

Free insulin, ImU/l

14.8*

PTH intact molecule, pg/ml

35*

Total triiodothyronine, ng/ml

0.7*

Total thyroxine, ug/dl

7.2*

TSH, IU/ml

2.83*

HB AC1, %

5.2*

White blood cells, %

Neutrophils

Lymphocytes

8,300

75

15

Hemoglobin, g/dl

10.6

Hematocrit, %

38

VCM, um3

70

HCM, pg

19

MHC, g/dl

28

EDI, %

19

Platelets, mm3

363,000

09/15/2021

Chromogranin A, ng/dl (range)

412 (0-100)

Natriuretic peptide B, pg/dl

2.25*

PTH = parathyroid hormone.

TSH = thyroid stimulating hormone.

HB = hemoglobin.

MCV = mean corpuscular volume.

MCH = mean corpuscular hemoglobin.

MCHC = mean corpuscular hemoglobin concentration.

EDI = erythrocyte dispersion index.

* Normal values.