Dr. Borja Gracia Tello, MD, PhD

Chair, Scientific Advisory Board

Dr. Borja Gracia Tello, MD, PhD

Professor of Medicine, University of Zaragoza

Dr. Borja del Carmelo Gracia Tello is an internist and academic director of the Unidad de Enfermedades Autoinmunes Sistémicas (Systemic Autoimmune Diseases Unit) at Hospital Clínico Universitario Lozano Blesa (Zaragoza), and Professor of Medicine at the University of Zaragoza. After completing his specialist training in Internal Medicine, he undertook a research fellowship with Prof. David Isenberg at University College London, where he gained advanced expertise in systemic autoimmune diseases and lupus. His clinical and research work focuses on microvascular involvement and connective tissue diseases, with a particular interest in systemic sclerosis, biomarkers of disease activity, and imaging-based tools to improve early diagnosis and risk stratification.

Dr. Gracia Tello has coordinated and participated in multiple national and international research projects, including studies on systemic sclerosis–associated pulmonary arterial hypertension, sarcoidosis, giant cell arteritis, and COVID-19. He is the lead inventor of a project on the digitalisation and automated analysis of nailfold capillaroscopy, developed through the GEAS (Grupo Español de Enfermedades Autoinmunes Sistémicas) of SEMI (Spanish Society of Internal Medicine), and co-author of the CAPI-Score and CAPI-Detect algorithms for quantitative videocapillaroscopy. As Chair of the Scientific Advisory Board, he provides strategic and scientific oversight for Capillaroscopy.com, ensuring that all educational content is rigorous, up-to-date, and aligned with international standards of care.

ORCID: research record and publications

Contributed cases and studies (2)

Guides with credited review

Images in the atlas (202)

Showing 25–36 of 202 images

Thin, elongated hairpin capillaries. Dark surface debris is visible above the row.Fine hairpins beneath visible surface debris

Thin, elongated hairpin capillaries. Dark surface debris is visible above the row.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.34 × 1.32 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 10–24 µm. These are automated estimates, not manually validated measurements.

Slender hairpin capillaries with mostly aligned apices and shorter vessels in the background.An ascending row of slender capillary loops

Slender hairpin capillaries with mostly aligned apices and shorter vessels in the background.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.28 × 1.28 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 14–27 µm. These are automated estimates, not manually validated measurements.

One enlarged elongated capillary near the center, with narrower hairpin loops on both sides.One broad loop among long narrow hairpins

One enlarged elongated capillary near the center, with narrower hairpin loops on both sides.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.30 × 1.29 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 11–42 µm. These are automated estimates, not manually validated measurements.

A capillary right of center has a sharp bend below its rounded apex. The surrounding hairpins are finer.An angular loop beneath a superficial crease

A capillary right of center has a sharp bend below its rounded apex. The surrounding hairpins are finer.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.33 × 1.31 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 15–40 µm. These are automated estimates, not manually validated measurements.

Narrow hairpin capillaries with small differences in length and width.Narrow rounded apices along a curved row

Narrow hairpin capillaries with small differences in length and width.

Borja Gracia Tello

Recorded diagnoses: Antiphospholipid syndrome; Systemic lupus erythematosus; Sjögren syndrome

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.24 × 1.26 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 13–22 µm. These are automated estimates, not manually validated measurements.

An enlarged rounded apex with a tortuous limb on the left, beside narrower hairpin capillaries.A rounded apex atop a winding limb

An enlarged rounded apex with a tortuous limb on the left, beside narrower hairpin capillaries.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.38 × 1.34 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 14–40 µm. These are automated estimates, not manually validated measurements.

An enlarged hairpin capillary right of center, with finer neighboring loops and occasional curved limbs.A broad hairpin interrupts a finer row

An enlarged hairpin capillary right of center, with finer neighboring loops and occasional curved limbs.

Borja Gracia Tello

Recorded diagnoses: Sjögren syndrome; Raynaud phenomenon

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.26 × 1.27 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 23–40 µm. These are automated estimates, not manually validated measurements.

Short hairpin capillaries with rounded apices and variable widths.Short loops with uneven contrast

Short hairpin capillaries with rounded apices and variable widths.

Borja Gracia Tello

Recorded diagnosis: Overlap syndrome

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.36 × 1.33 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 17–31 µm. These are automated estimates, not manually validated measurements.

Several capillaries have enlarged rounded apices and narrower elongated limbs. Some loops have mild bends.Bulbous tips among elongated hairpins

Several capillaries have enlarged rounded apices and narrower elongated limbs. Some loops have mild bends.

Borja Gracia Tello

Magnification:
200×
Device:
Optilia Digital Capillaroscope
Field of view (W × H):
≈ 1.71 × 1.28 mm
Hairpin capillaries with rounded apices at different heights and mostly aligned limbs.Rounded apices along an ascending row

Hairpin capillaries with rounded apices at different heights and mostly aligned limbs.

Borja Gracia Tello

Magnification:
200×
Device:
Optilia Digital Capillaroscope
Field of view (W × H):
≈ 1.71 × 1.28 mm
Broad and fine hairpin capillaries lie close together, with some overlapping apices.Closely neighboring loops with unequal calibers

Broad and fine hairpin capillaries lie close together, with some overlapping apices.

Borja Gracia Tello

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.49 × 1.40 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 18–36 µm. These are automated estimates, not manually validated measurements.

An enlarged rounded apex at the upper left, beside long narrow hairpin capillaries.A bulbous marginal apex beside slender loops

An enlarged rounded apex at the upper left, beside long narrow hairpin capillaries.

Borja Gracia Tello

Recorded diagnosis: Limited systemic sclerosis

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.38 × 1.34 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 17–51 µm. These are automated estimates, not manually validated measurements.