Mucocutaneous ulcerations as a first sign of methotrexate
toxicity

Ravindranath B. Chavan; Vasudha Belgaumkar; Anil P. Gosavi; Nitika Sanjay Deshmukh; Neelam Bhatt; Kopal Agrawal

doi:10.5114/dr.2021.105898

eISSN: 2084-9893
ISSN: 0033-2526

Dermatology Review/Przegląd Dermatologiczny

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1/2021
vol. 108

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abstract:

Letter to the Editor

Mucocutaneous ulcerations as a first sign of methotrexate toxicity

Ravindranath B. Chavan

¹

,

Vasudha Belgaumkar

¹

,

Anil P. Gosavi

¹

,

Nitika Sanjay Deshmukh

¹

,

Neelam Bhatt

¹

,

Kopal Agrawal

¹

B.J. Government Medical College, Pune, Maharashtra, India

Dermatol Rev/Przegl Derm 2021, 108, 74-76

DOI: https://doi.org/10.5114/dr.2021.105898

Online publish date: 2021/05/13

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We came across a 72-year-old man, who presented with oral intolerance to spicy food with raw areas over the lips and oral cavity and ulcers over pre-existing psoriatic plaques for the last 6 days. Detailed history revealed that he had taken daily doses of methotrexate (MTX) 7.5 mg twice a day without folic acid for 4 days (cumulative dose of 60 mg), the last dose taken 72 hours before presenting to us; without any proper prescription or instructions by a local practitioner. On examination, he had multiple erosions with haemorrhagic crusts on the lower lip and buccal mucosa (fig. 1) along with erythematous scaly plaques with partially healed ulcers over the extensor aspect of bilateral extremities (PASI 10.2) (fig. 2).A provisional diagnosis of plaque type psoriasis with acute MTX toxicity was made. Haemogram, serum albumin (3.6), serum albumin/globulin ratio (1.6), and liver and renal function tests were normal. Serum MTX level was 0.2 µmol/l. We administered intravenous fluids and folinic acid (30 mg/m2 over 2 to 3 hours, 3 doses 6 hourly) within 2 hours of presentation. Serum MTX level after 48 hours of folinic acid therapy was 0.01 µmol/l. The mucosal erosions resolved within 3 to 5 days. Considering higher risk of toxicity due to poor compliance and advanced age, the patient was started on tablets of apremilast 30 mg BD along with antacids. The treatment was well tolerated and his PASI score had decreased to 8.4 at the 1-month follow-up.

Mucocutaneous ulcerations as a first sign of methotrexate toxicity

Ravindranath B. Chavan 1 , Vasudha Belgaumkar 1 , Anil P. Gosavi 1 , Nitika Sanjay Deshmukh 1 , Neelam Bhatt 1 , Kopal Agrawal 1

Ravindranath B. Chavan

¹

,

Vasudha Belgaumkar

¹

,

Anil P. Gosavi

¹

,

Nitika Sanjay Deshmukh

¹

,

Neelam Bhatt

¹

,

Kopal Agrawal

¹