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 109–120 of 202 images

Fine capillaries with accessory loops and multiple apices, mixed with longer hairpin loops. Some vessels overlap.Fine branching forms in a descending row

Fine capillaries with accessory loops and multiple apices, mixed with longer hairpin loops. Some vessels overlap.

Borja Gracia Tello

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

For nonbranching apices with stable automated measurements, estimated widths span approximately 14–26 µm. These are automated estimates, not manually validated measurements.

Mostly simple rounded hairpin capillaries, with one folded apex at the far left and mild curvature in some limbs.One folded tip among open rounded loops

Mostly simple rounded hairpin capillaries, with one folded apex at the far left and mild curvature in some limbs.

Borja Gracia Tello

Recorded diagnoses: Undifferentiated connective tissue disease; Systemic lupus erythematosus

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.32 × 1.31 mm

For the subset of apices with stable automated measurements, estimated widths span approximately 15–29 µm. These are automated estimates, not manually validated measurements.

Several capillaries with multiple rounded apices, especially in the center and at the right edge.Multiple apices in several capillaries

Several capillaries with multiple rounded apices, especially in the center and at the right edge.

Borja Gracia Tello

Magnification:
200×
Device:
Optilia
Field of view (W × H):
≈ 1.71 × 1.28 mm
A branching capillary with several narrow apices on the right, beside thick tortuous loops on the left.A branching capillary beside thick tortuous loops

A branching capillary with several narrow apices on the right, beside thick tortuous loops on the left.

Borja Gracia Tello

Magnification:
200×
Device:
Optilia Digital Capillaroscope
Field of view (W × H):
≈ 1.71 × 1.28 mm
Small capillaries with multiple apices and irregular bends. Some loops overlap or are poorly defined.Small irregular capillaries along an uneven row

Small capillaries with multiple apices and irregular bends. Some loops overlap or are poorly defined.

Borja Gracia Tello

Recorded diagnosis: Inflammatory myopathy

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.29 × 1.29 mm

For nonbranching apices with stable automated measurements, estimated widths span approximately 8–34 µm. These are automated estimates, not manually validated measurements.

Mostly rounded hairpin capillaries, with a taller branching-appearing loop near the right edge.A forked marginal loop beside rounded hairpins

Mostly rounded hairpin capillaries, with a taller branching-appearing loop near the right edge.

Borja Gracia Tello

Magnification:
200×
Device:
Optilia
Field of view (W × H):
≈ 1.71 × 1.28 mm
Small coiled and folded capillary apices. Separate reddish deposits compatible with microhemorrhages lie above the row.Curled tips above a broad connecting plexus

Small coiled and folded capillary apices. Separate reddish deposits compatible with microhemorrhages lie 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 11–23 µm. These are automated estimates, not manually validated measurements.

Capillaries with angular apices and accessory loops in the center and right. A broader loop is only partly visible at the left edge.Angular apices and an incompletely seen broad loop

Capillaries with angular apices and accessory loops in the center and right. A broader loop is only partly visible at the left edge.

Borja Gracia Tello

Recorded diagnoses: Systemic lupus erythematosus; Limited systemic sclerosis

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 17–67 µm. These are automated estimates, not manually validated measurements.

A fine branching capillary on the left, with slender hairpin loops and nearby crossed or curved capillaries.A fine branching capillary in an ascending row

A fine branching capillary on the left, with slender hairpin loops and nearby crossed or curved capillaries.

Borja Gracia Tello

Recorded diagnosis: Raynaud phenomenon

Magnification:
250×
Device:
Smart G-Scope
Field of view (W × H):
≈ 2.35 × 1.32 mm

For nonbranching apices with stable automated measurements, estimated widths span approximately 13–24 µm. These are automated estimates, not manually validated measurements.

A tortuous giant-appearing capillary near the center-right, with a thick apex and limbs. Smaller coiled loops are visible nearby.A curved loop with giant-capillary morphology

A tortuous giant-appearing capillary near the center-right, with a thick apex and limbs. Smaller coiled loops are visible nearby.

Borja Gracia Tello

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

For nonbranching apices with stable automated measurements, estimated widths span approximately 8–40 µm. These are automated estimates, not manually validated measurements. The dominant giant-appearing loop is not represented by a stable giant-range apex estimate in this subset.

Broad capillaries with lateral bends and folded or hooked apices. Some taller hairpin loops on the left are simpler.Broad sideways returns in a short capillary row

Broad capillaries with lateral bends and folded or hooked apices. Some taller hairpin loops on the left are simpler.

Borja Gracia Tello

Recorded diagnoses: Sjögren syndrome; 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 20–27 µm. These are automated estimates, not manually validated measurements.

A small capillary with multiple rounded apices left of center, surrounded by slender simple hairpin loops.A small branching capillary among slender loops

A small capillary with multiple rounded apices left of center, surrounded by slender simple hairpin loops.

Borja Gracia Tello

Recorded diagnosis: Inflammatory myopathy

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

For nonbranching apices with stable automated measurements, estimated widths span approximately 12–21 µm. These are automated estimates, not manually validated measurements.